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From anat...@apache.org
Subject [3/3] incubator-tamaya-sandbox git commit: TAMAYA-307: Readded collections module.
Date Thu, 21 Sep 2017 16:23:46 GMT
TAMAYA-307: Readded collections module.


Project: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/commit/4c259384
Tree: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/tree/4c259384
Diff: http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/diff/4c259384

Branch: refs/heads/java8
Commit: 4c25938401a26f780cd76659e69331679352b792
Parents: 636dbb5
Author: anatole <anatole@apache.org>
Authored: Thu Sep 21 18:23:30 2017 +0200
Committer: anatole <anatole@apache.org>
Committed: Thu Sep 21 18:23:30 2017 +0200

----------------------------------------------------------------------
 collections/pom.xml                             |  53 +++++
 .../collections/AdaptiveCombinationPolicy.java  | 122 ++++++++++
 .../tamaya/collections/ArrayListConverter.java  |  62 +++++
 .../tamaya/collections/CollectionConverter.java |  63 +++++
 .../collections/ConcurrentHashMapConverter.java |  63 +++++
 .../tamaya/collections/HashMapConverter.java    |  63 +++++
 .../tamaya/collections/HashSetConverter.java    |  62 +++++
 .../tamaya/collections/ItemTokenizer.java       | 171 ++++++++++++++
 .../tamaya/collections/LinkedListConverter.java |  63 +++++
 .../tamaya/collections/ListConverter.java       |  55 +++++
 .../apache/tamaya/collections/MapConverter.java |  58 +++++
 .../apache/tamaya/collections/SetConverter.java |  55 +++++
 .../tamaya/collections/SortedMapConverter.java  |  36 +++
 .../tamaya/collections/SortedSetConverter.java  |  36 +++
 .../tamaya/collections/TreeMapConverter.java    |  62 +++++
 .../tamaya/collections/TreeSetConverter.java    |  63 +++++
 .../org.apache.tamaya.spi.PropertyConverter     |  31 +++
 ...he.tamaya.spi.PropertyValueCombinationPolicy |  19 ++
 .../collections/CollectionAdvancedTests.java    | 117 ++++++++++
 .../collections/CollectionsBaseTests.java       | 227 +++++++++++++++++++
 .../CollectionsTypedReadOnlyTests.java          | 173 ++++++++++++++
 .../collections/CollectionsTypedTests.java      | 208 +++++++++++++++++
 .../collections/MyUpperCaseConverter.java       |  33 +++
 .../META-INF/javaconfiguration.properties       |  73 ++++++
 24 files changed, 1968 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/pom.xml
----------------------------------------------------------------------
diff --git a/collections/pom.xml b/collections/pom.xml
new file mode 100644
index 0000000..b11c807
--- /dev/null
+++ b/collections/pom.xml
@@ -0,0 +1,53 @@
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy current the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.apache.tamaya.ext</groupId>
+        <artifactId>tamaya-extensions</artifactId>
+        <version>0.4-incubating-SNAPSHOT</version>
+        <relativePath>..</relativePath>
+    </parent>
+
+    <artifactId>tamaya-collections</artifactId>
+    <name>Apache Tamaya Modules - Collections Support</name>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.tamaya</groupId>
+            <artifactId>tamaya-core</artifactId>
+            <version>${project.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.tamaya</groupId>
+            <artifactId>tamaya-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+
+</project>

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/AdaptiveCombinationPolicy.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/AdaptiveCombinationPolicy.java b/collections/src/main/java/org/apache/tamaya/collections/AdaptiveCombinationPolicy.java
new file mode 100644
index 0000000..f10f7ec
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/AdaptiveCombinationPolicy.java
@@ -0,0 +1,122 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.spi.PropertySource;
+import org.apache.tamaya.spi.PropertyValue;
+import org.apache.tamaya.spi.PropertyValueCombinationPolicy;
+
+import javax.annotation.Priority;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * PropertyValueCombinationPolicy that allows to configure a PropertyValueCombinationPolicy
+ * for each key individually, by adding a configured entry of the form
+ * {@code _key.combination-policy=collect|override|fqPolicyClassName}.
+ */
+@Priority(100)
+public class AdaptiveCombinationPolicy implements PropertyValueCombinationPolicy {
+    /** Logger. */
+    private static final Logger LOG = Logger.getLogger(AdaptiveCombinationPolicy.class.getName());
+
+    /**
+     * Collecting combination policy using (optional) {@code item-separator} parameter for determining the sparator
+     * to combine multiple config entries found.
+     */
+    private static final PropertyValueCombinationPolicy COLLECTING_POLICY = new PropertyValueCombinationPolicy(){
+        @Override
+        public PropertyValue collect(PropertyValue currentValue, String key, PropertySource propertySource) {
+            // check for default collection combination policies for lists, sets, maps etc.
+            final String separator = ConfigurationProvider.getConfiguration().getOrDefault('_' + key+".item-separator", ",");
+            PropertyValue newValue = propertySource.get(key);
+            if(newValue!=null){
+                if(currentValue==null){
+                    return newValue;
+                }
+                String oldVal = currentValue.getValue();
+                newValue = newValue.toBuilder()
+                        .setValue(oldVal + ',' + newValue.getValue())
+                        .addMetaEntry("sources", currentValue.getSource() + "\n" + newValue.getSource())
+                        .build();
+                return newValue;
+            }else{
+                if(currentValue!=null){
+                    return currentValue;
+                }
+                return null;
+            }
+        }
+    };
+
+    /** Cache for loaded custom combination policies. */
+    private Map<Class, PropertyValueCombinationPolicy> configuredPolicies = new ConcurrentHashMap<>();
+
+    @Override
+    public PropertyValue collect(PropertyValue currentValue, String key, PropertySource propertySource){
+        if(key.startsWith("_")){
+            PropertyValue newValue = propertySource.get(key);
+            if(newValue!=null){
+                return newValue;
+            }
+            return currentValue;
+        }
+        String adaptiveCombinationPolicyClass  = ConfigurationProvider.getConfiguration().getOrDefault(
+                '_' + key+".combination-policy", "override");
+        PropertyValueCombinationPolicy combinationPolicy = null;
+        switch(adaptiveCombinationPolicyClass){
+            case "collect":
+            case "COLLECT":
+                if(LOG.isLoggable(Level.FINEST)){
+                    LOG.finest("Using collecting combination policy for key: " + key + "");
+                }
+                combinationPolicy = COLLECTING_POLICY;
+                break;
+            case "override":
+            case "OVERRIDE":
+                if(LOG.isLoggable(Level.FINEST)){
+                    LOG.finest("Using default (overriding) combination policy for key: " + key + "");
+                }
+                combinationPolicy = PropertyValueCombinationPolicy.DEFAULT_OVERRIDING_COLLECTOR;
+                break;
+            default:
+                try{
+                    Class<PropertyValueCombinationPolicy> clazz = (Class<PropertyValueCombinationPolicy>)
+                            Class.forName(adaptiveCombinationPolicyClass);
+                    combinationPolicy = configuredPolicies.get(clazz);
+                    if(combinationPolicy==null){
+                        combinationPolicy = clazz.newInstance();
+                        configuredPolicies.put(clazz, combinationPolicy);
+                    }
+                    if(LOG.isLoggable(Level.FINEST)){
+                        LOG.finest("Using custom combination policy "+adaptiveCombinationPolicyClass+" for " +
+                                "key: " + key + "");
+                    }
+                } catch(Exception e){
+                    LOG.log(Level.SEVERE, "Error loading configured PropertyValueCombinationPolicy for " +
+                            "key: " + key + ", using default (overriding) policy.", e);
+                    combinationPolicy = PropertyValueCombinationPolicy.DEFAULT_OVERRIDING_COLLECTOR;
+                }
+        }
+        return combinationPolicy.collect(currentValue, key, propertySource);
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/ArrayListConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/ArrayListConverter.java b/collections/src/main/java/org/apache/tamaya/collections/ArrayListConverter.java
new file mode 100644
index 0000000..189c4a0
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/ArrayListConverter.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating ArrayList representation of a values.
+ */
+public class ArrayListConverter implements PropertyConverter<ArrayList> {
+
+    private static final Logger LOG = Logger.getLogger(ArrayListConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final ArrayListConverter INSTANCE = new ArrayListConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static ArrayListConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public ArrayList convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        ArrayList<Object> mlist = new ArrayList<>();
+        for(String raw:rawList){
+            Object convValue = ItemTokenizer.convertValue(raw, context);
+            if (convValue != null) {
+                mlist.add(convValue);
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return mlist;
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/CollectionConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/CollectionConverter.java b/collections/src/main/java/org/apache/tamaya/collections/CollectionConverter.java
new file mode 100644
index 0000000..91443ea
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/CollectionConverter.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collection;
+import java.util.Collections;
+
+/**
+ *  PropertyConverter for gnerating a LIST representation of values.
+ */
+public class CollectionConverter implements PropertyConverter<Collection> {
+
+    @Override
+    public Collection convert(String value, ConversionContext context) {
+        String collectionType = context.getConfiguration().getOrDefault('_' + context.getKey()+".collection-type", "List");
+        if(collectionType.startsWith("java.util.")){
+            collectionType = collectionType.substring("java.util.".length());
+        }
+        Collection result = null;
+        switch(collectionType){
+            case "LinkedList":
+                result = LinkedListConverter.getInstance().convert(value, context);
+                break;
+            case "Set":
+            case "HashSet":
+                result = HashSetConverter.getInstance().convert(value, context);
+                break;
+            case "SortedSet":
+            case "TreeSet":
+                result = TreeSetConverter.getInstance().convert(value, context);
+                break;
+            case "List":
+            case "ArrayList":
+            default:
+                result = ArrayListConverter.getInstance().convert(value, context);
+                break;
+        }
+        if(context.getConfiguration().getOrDefault('_' + context.getKey()+".read-only",
+                Boolean.class, Boolean.TRUE)){
+            return Collections.unmodifiableCollection(result);
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/ConcurrentHashMapConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/ConcurrentHashMapConverter.java b/collections/src/main/java/org/apache/tamaya/collections/ConcurrentHashMapConverter.java
new file mode 100644
index 0000000..b19fd0c
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/ConcurrentHashMapConverter.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.List;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating ConcurrentHashMap representation of a values.
+ */
+public class ConcurrentHashMapConverter implements PropertyConverter<ConcurrentHashMap> {
+    private static final Logger LOG = Logger.getLogger(ConcurrentHashMapConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final ConcurrentHashMapConverter INSTANCE = new ConcurrentHashMapConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static ConcurrentHashMapConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public ConcurrentHashMap convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        ConcurrentHashMap result = new ConcurrentHashMap(rawList.size());
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.put(items[0], convValue);
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/HashMapConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/HashMapConverter.java b/collections/src/main/java/org/apache/tamaya/collections/HashMapConverter.java
new file mode 100644
index 0000000..d223145
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/HashMapConverter.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating HashMap representation of a values.
+ */
+public class HashMapConverter implements PropertyConverter<HashMap> {
+    private static final Logger LOG = Logger.getLogger(HashMapConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final HashMapConverter INSTANCE = new HashMapConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static HashMapConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public HashMap convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        HashMap result = new HashMap(rawList.size());
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.put(items[0], convValue);
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/HashSetConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/HashSetConverter.java b/collections/src/main/java/org/apache/tamaya/collections/HashSetConverter.java
new file mode 100644
index 0000000..a8e70cf
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/HashSetConverter.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating HashSet representation of a values.
+ */
+public class HashSetConverter implements PropertyConverter<HashSet> {
+
+    private static final Logger LOG = Logger.getLogger(HashSetConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final HashSetConverter INSTANCE = new HashSetConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static HashSetConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public HashSet convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        HashSet<Object> result = new HashSet<>();
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.add(convValue);
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/ItemTokenizer.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/ItemTokenizer.java b/collections/src/main/java/org/apache/tamaya/collections/ItemTokenizer.java
new file mode 100644
index 0000000..60e6e7f
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/ItemTokenizer.java
@@ -0,0 +1,171 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.TypeLiteral;
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Helper class that implements the tokenizing of the entries of a configuration value.
+ */
+final class ItemTokenizer {
+
+    private static final Logger LOG = Logger.getLogger(ItemTokenizer.class.getName());
+
+    /**
+     * Private singleton.
+     */
+    private ItemTokenizer(){}
+
+    /**
+     * Splits the given value using the given separator. Matcjhing is done by traversing the String value using
+     * {@code indexOf} calls, one by one. The last unresolvable item (without any next separator token)
+     * is added at the end of the list.
+     * @param value the value, not null.
+     * @param context the conversion context.
+     * @return the tokenized value as list, in order of occurrence.
+     */
+    public static List<String> split(String value, ConversionContext context){
+        return split(value, ConfigurationProvider.getConfiguration().getOrDefault(
+                '_' + context.getKey()+ "" +
+                        "item-separator", ","));
+    }
+
+    /**
+     * Splits the given value using the given separator. Matcjhing is done by traversing the String value using
+     * {@code indexOf} calls, one by one. The last unresolvable item (without any next separator token)
+     * is added at the end of the list.
+     * @param value the value, not null.
+     * @param separator the separator to be used.
+     * @return the tokenized value as list, in order of occurrence.
+     */
+    public static List<String> split(String value, final String separator) {
+        ArrayList<String> result = new ArrayList<>();
+        int start = 0;
+        int end = value.indexOf(separator,start);
+        while(end>0) {
+            if (value.charAt(end - 1) != '\\') {
+                result.add(value.substring(start, end));
+                start = end + separator.length();
+                end = value.indexOf(separator,start);
+            }else{
+                end = value.indexOf(separator,end + separator.length());
+            }
+            end = value.indexOf(separator,start);
+        }
+        if(start < value.length()){
+            result.add(value.substring(start));
+        }
+        return result;
+    }
+
+    /**
+     * plits the given String value as a map entry, splitting it into key and value part with the given separator.
+     * If the value cannot be split then {@code key = value = mapEntry} is used for further processing. key or value
+     * parts are normally trimmed, unless they are enmcosed with brackets {@code []}.
+     * @param mapEntry the entry, not null.
+     * @param context the conversion context.
+     * @return an array of length 2, with the trimmed and parsed key/value pair.
+     */
+    public static String[] splitMapEntry(String mapEntry, ConversionContext context){
+        return splitMapEntry(mapEntry, ConfigurationProvider.getConfiguration().getOrDefault(
+                '_' + context.getKey()+".map-entry-separator", "::"));
+    }
+
+    /**
+     * Splits the given String value as a map entry, splitting it into key and value part with the given separator.
+     * If the value cannot be split then {@code key = value = mapEntry} is used for further processing. key or value
+     * parts are normally trimmed, unless they are enmcosed with brackets {@code []}.
+     * @param mapEntry the entry, not null.
+     * @param separator the separator, not null.
+     * @return an array of length 2, with the trimmed and parsed key/value pair.
+     */
+    public static String[] splitMapEntry(final String mapEntry, final String separator) {
+        int index = mapEntry.indexOf(separator);
+        String[] items;
+        if(index<0) {
+            items = new String[]{mapEntry, mapEntry};
+        }else {
+            items = new String[]{mapEntry.substring(0,index),
+                                 mapEntry.substring(index+separator.length())};
+        }
+        if(items[0].trim().startsWith("[")){
+            items[0]= items[0].trim();
+            items[0] = items[0].substring(1);
+        }else{
+            items[0]= items[0].trim();
+        }
+        if(items[1].trim().endsWith("]")){
+            items[1] = items[1].substring(0,items[1].length()-1);
+        }else{
+            items[1]= items[1].trim();
+        }
+        return items;
+    }
+
+    /**
+     * Parses the given value into the required collection target type, defined by the context.
+     * @param value the raw String value.
+     * @param context the context
+     * @return the parsed value, or null.
+     */
+    public static Object convertValue(String value, ConversionContext context) {
+        String converterClass = context.getConfiguration().get('_' + context.getKey() + ".item-converter");
+        List<PropertyConverter<Object>> valueConverters = new ArrayList<>(1);
+        if (converterClass != null) {
+            try {
+                valueConverters.add((PropertyConverter<Object>) Class.forName(converterClass).newInstance());
+            } catch (Exception e) {
+                LOG.log(Level.SEVERE, "Error convertion config to ArrayList type.", e);
+            }
+        }
+        if (TypeLiteral.getTypeParameters(context.getTargetType().getType()).length>0) {
+            valueConverters.addAll(context.getConfigurationContext().getPropertyConverters(
+                    TypeLiteral.of(TypeLiteral.getTypeParameters(context.getTargetType().getType())[0])));
+        }
+        ConversionContext ctx = new ConversionContext.Builder(context.getConfiguration(),
+                context.getConfigurationContext(), context.getKey(),
+                TypeLiteral.of(context.getTargetType().getType())).build();
+        Object result = null;
+        if (valueConverters.isEmpty()) {
+            return value;
+        } else {
+            for (PropertyConverter<Object> conv : valueConverters) {
+                try {
+                    result = conv.convert(value, ctx);
+                    if (result != null) {
+                        return result;
+                    }
+                } catch (Exception e) {
+                    LOG.log(Level.SEVERE, "Error convertion config to ArrayList type.", e);
+                }
+            }
+        }
+        LOG.log(Level.SEVERE, "Failed to convert collection value type for '" + value + "'.");
+        return null;
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/LinkedListConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/LinkedListConverter.java b/collections/src/main/java/org/apache/tamaya/collections/LinkedListConverter.java
new file mode 100644
index 0000000..3846ac2
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/LinkedListConverter.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating LinkedList representation of a values.
+ */
+public class LinkedListConverter implements PropertyConverter<LinkedList> {
+    private static final Logger LOG = Logger.getLogger(LinkedListConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final LinkedListConverter INSTANCE = new LinkedListConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static LinkedListConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public LinkedList convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        LinkedList<Object> result = new LinkedList<>();
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.add(convValue);
+                continue;
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/ListConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/ListConverter.java b/collections/src/main/java/org/apache/tamaya/collections/ListConverter.java
new file mode 100644
index 0000000..54aae36
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/ListConverter.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ *  PropertyConverter for gnerating a LIST representation of values.
+ */
+public class ListConverter implements PropertyConverter<List> {
+
+    @Override
+    public List convert(String value, ConversionContext context) {
+        String collectionType = context.getConfiguration().getOrDefault('_' + context.getKey()+".collection-type", "List");
+        if(collectionType.startsWith("java.util.")){
+            collectionType = collectionType.substring("java.util.".length());
+        }
+        List result = null;
+        switch(collectionType){
+            case "LinkedList":
+                result = LinkedListConverter.getInstance().convert(value, context);
+                break;
+            case "List":
+            case "ArrayList":
+            default:
+                result = ArrayListConverter.getInstance().convert(value, context);
+                break;
+        }
+        if(context.getConfiguration().getOrDefault('_' + context.getKey()+".read-only",
+                Boolean.class, Boolean.TRUE)){
+            return Collections.unmodifiableList(result);
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/MapConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/MapConverter.java b/collections/src/main/java/org/apache/tamaya/collections/MapConverter.java
new file mode 100644
index 0000000..559c9eb
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/MapConverter.java
@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collections;
+import java.util.Map;
+
+/**
+ *  PropertyConverter for gnerating HashMap representation of a values.
+ */
+public class MapConverter implements PropertyConverter<Map> {
+
+    @Override
+    public Map convert(String value, ConversionContext context) {
+        String collectionType = context.getConfiguration().getOrDefault('_' + context.getKey()+".collection-type", "Map");
+        if(collectionType.startsWith("java.util.")){
+            collectionType = collectionType.substring("java.util.".length());
+        }
+        Map result = null;
+        switch(collectionType){
+            case "TreeMap":
+                result = TreeMapConverter.getInstance().convert(value, context);
+                break;
+            case "ConcurrentHashMap":
+                result = ConcurrentHashMapConverter.getInstance().convert(value, context);
+                break;
+            case "Map":
+            case "HashMap":
+            default:
+                result = HashMapConverter.getInstance().convert(value, context);
+                break;
+        }
+        if(context.getConfiguration().getOrDefault('_' + context.getKey()+".read-only",
+                Boolean.class, Boolean.TRUE)){
+            return Collections.unmodifiableMap(result);
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/SetConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/SetConverter.java b/collections/src/main/java/org/apache/tamaya/collections/SetConverter.java
new file mode 100644
index 0000000..b6e9ae6
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/SetConverter.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collections;
+import java.util.Set;
+
+/**
+ *  PropertyConverter for gnerating a LIST representation of values.
+ */
+public class SetConverter implements PropertyConverter<Set> {
+
+    @Override
+    public Set convert(String value, ConversionContext context) {
+        String collectionType = context.getConfiguration().getOrDefault('_' + context.getKey()+".collection-type", "Set");
+        if(collectionType.startsWith("java.util.")){
+            collectionType = collectionType.substring("java.util.".length());
+        }
+        Set result = null;
+        switch(collectionType){
+            case "TreeSet":
+                result = TreeSetConverter.getInstance().convert(value, context);
+                break;
+            case "Set":
+            case "HashSet":
+            default:
+                result = HashSetConverter.getInstance().convert(value, context);
+                break;
+        }
+        if(context.getConfiguration().getOrDefault('_' + context.getKey()+".read-only",
+                Boolean.class, Boolean.TRUE)){
+            return Collections.unmodifiableSet(result);
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/SortedMapConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/SortedMapConverter.java b/collections/src/main/java/org/apache/tamaya/collections/SortedMapConverter.java
new file mode 100644
index 0000000..5416e28
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/SortedMapConverter.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collections;
+import java.util.SortedMap;
+
+/**
+ *  PropertyConverter for gnerating a LIST representation of values.
+ */
+public class SortedMapConverter implements PropertyConverter<SortedMap> {
+
+    @Override
+    public SortedMap convert(String value, ConversionContext context) {
+        return Collections.unmodifiableSortedMap(TreeMapConverter.getInstance().convert(value, context));
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/SortedSetConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/SortedSetConverter.java b/collections/src/main/java/org/apache/tamaya/collections/SortedSetConverter.java
new file mode 100644
index 0000000..5ea2a14
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/SortedSetConverter.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.Collections;
+import java.util.SortedSet;
+
+/**
+ *  PropertyConverter for gnerating a LIST representation of values.
+ */
+public class SortedSetConverter implements PropertyConverter<SortedSet> {
+
+    @Override
+    public SortedSet convert(String value, ConversionContext context) {
+        return Collections.unmodifiableSortedSet(TreeSetConverter.getInstance().convert(value, context));
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/TreeMapConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/TreeMapConverter.java b/collections/src/main/java/org/apache/tamaya/collections/TreeMapConverter.java
new file mode 100644
index 0000000..67391ab
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/TreeMapConverter.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.List;
+import java.util.TreeMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating HashMap representation of a values.
+ */
+public class TreeMapConverter implements PropertyConverter<TreeMap> {
+    /** Logger used. */
+    private static final Logger LOG = Logger.getLogger(HashMapConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final TreeMapConverter INSTANCE = new TreeMapConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static TreeMapConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public TreeMap convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        TreeMap result = new TreeMap();
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.put(items[0], convValue);
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/java/org/apache/tamaya/collections/TreeSetConverter.java
----------------------------------------------------------------------
diff --git a/collections/src/main/java/org/apache/tamaya/collections/TreeSetConverter.java b/collections/src/main/java/org/apache/tamaya/collections/TreeSetConverter.java
new file mode 100644
index 0000000..1b049c2
--- /dev/null
+++ b/collections/src/main/java/org/apache/tamaya/collections/TreeSetConverter.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.spi.ConversionContext;
+import org.apache.tamaya.spi.PropertyConverter;
+
+import java.util.List;
+import java.util.TreeSet;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *  PropertyConverter for gnerating HashSet representation of a values.
+ */
+public class TreeSetConverter implements PropertyConverter<TreeSet> {
+
+    private static final Logger LOG = Logger.getLogger(TreeSetConverter.class.getName());
+
+    /** The shared instance, used by other collection converters in this package.*/
+    private static final TreeSetConverter INSTANCE = new TreeSetConverter();
+
+    /**
+     * Provide a shared instance, used by other collection converters in this package.
+     * @return the shared instance, never null.
+     */
+    static TreeSetConverter getInstance(){
+        return INSTANCE;
+    }
+
+    @Override
+    public TreeSet convert(String value, ConversionContext context) {
+        List<String> rawList = ItemTokenizer.split(value, context);
+        TreeSet<Object> result = new TreeSet<>();
+        for(String raw:rawList){
+            String[] items = ItemTokenizer.splitMapEntry(raw, context);
+            Object convValue = ItemTokenizer.convertValue(items[1], context);
+            if(convValue!=null){
+                result.add(convValue);
+                continue;
+            }else{
+                LOG.log(Level.SEVERE, "Failed to convert collection value type for '"+raw+"'.");
+            }
+        }
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyConverter
----------------------------------------------------------------------
diff --git a/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyConverter b/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyConverter
new file mode 100644
index 0000000..167bc27
--- /dev/null
+++ b/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyConverter
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy current the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+org.apache.tamaya.collections.ArrayListConverter
+org.apache.tamaya.collections.CollectionConverter
+org.apache.tamaya.collections.HashMapConverter
+org.apache.tamaya.collections.ConcurrentHashMapConverter
+org.apache.tamaya.collections.HashSetConverter
+org.apache.tamaya.collections.LinkedListConverter
+org.apache.tamaya.collections.ListConverter
+org.apache.tamaya.collections.MapConverter
+org.apache.tamaya.collections.SetConverter
+org.apache.tamaya.collections.SortedSetConverter
+org.apache.tamaya.collections.SortedMapConverter
+org.apache.tamaya.collections.TreeMapConverter
+org.apache.tamaya.collections.TreeSetConverter

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyValueCombinationPolicy
----------------------------------------------------------------------
diff --git a/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyValueCombinationPolicy b/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyValueCombinationPolicy
new file mode 100644
index 0000000..277c753
--- /dev/null
+++ b/collections/src/main/resources/META-INF/services/org.apache.tamaya.spi.PropertyValueCombinationPolicy
@@ -0,0 +1,19 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy current the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+org.apache.tamaya.collections.AdaptiveCombinationPolicy
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/test/java/org/apache/tamaya/collections/CollectionAdvancedTests.java
----------------------------------------------------------------------
diff --git a/collections/src/test/java/org/apache/tamaya/collections/CollectionAdvancedTests.java b/collections/src/test/java/org/apache/tamaya/collections/CollectionAdvancedTests.java
new file mode 100644
index 0000000..43f1f4f
--- /dev/null
+++ b/collections/src/test/java/org/apache/tamaya/collections/CollectionAdvancedTests.java
@@ -0,0 +1,117 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.TypeLiteral;
+import org.junit.Test;
+
+import java.util.Currency;
+import java.util.List;
+import java.util.Map;
+
+import static junit.framework.TestCase.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Created by atsticks on 16.02.16.
+ */
+public class CollectionAdvancedTests {
+
+    /**
+     * Tests if a custom separator works, Config is
+     * <pre>
+     *  sep-list=a,b,c|d,e,f|g,h,i
+     *  _sep-list.collection-type=List
+     *  _sep-list.collection-separator=|
+     * </pre>
+     */
+    @Test
+    public void testCustomSeparator(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = config.get("sep-list", new TypeLiteral<List<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(3, items.size());
+        assertEquals("a,b,c", items.get(0));
+        assertEquals("d,e,f", items.get(1));
+        assertEquals("g,h,i", items.get(2));
+    }
+
+    /**
+     * Test typed content.
+     * <pre>
+     *  currency-list=CHF,USD,YEN
+     *  _currency-list.collection-type=List
+     * </pre>
+     */
+    @Test
+    public void testTypedContent(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<Currency> items = config.get("currency-list", new TypeLiteral<List<Currency>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(3, items.size());
+        assertEquals("CHF", items.get(0).getCurrencyCode());
+        assertEquals("USD", items.get(1).getCurrencyCode());
+        assertEquals("USS", items.get(2).getCurrencyCode());
+    }
+
+    /**
+     * Tests if a custom parser works, Config is
+     * <pre>
+     *  parser-list=a,b,c
+     *  _parser-list.collection-type=List
+     *  _parser-list.item-converter=org.apache.tamaya.collections.MyUpperCaseConverter
+     * </pre>
+     */
+    @Test
+    public void testCustomParser(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = config.get("parser-list", new TypeLiteral<List<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(3, items.size());
+        assertEquals("(A)", items.get(0));
+        assertEquals("(B)", items.get(1));
+        assertEquals("(C)", items.get(2));
+    }
+
+    /**
+     * Redefined map format parsing, Config is as follows:
+     * <pre>
+     *  redefined-map=0==none | 1==single | 2==any
+     *  _redefined-map.map-entry-separator===
+     *  _redefined-map.item-separator=|
+     * </pre>
+     */
+    @Test
+    public void testCustomMapParser(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("redefined-map", Map.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(3, items.size());
+        assertEquals("none", items.get("0"));
+        assertEquals("single", items.get("1"));
+        assertEquals("any", items.get("2"));
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/test/java/org/apache/tamaya/collections/CollectionsBaseTests.java
----------------------------------------------------------------------
diff --git a/collections/src/test/java/org/apache/tamaya/collections/CollectionsBaseTests.java b/collections/src/test/java/org/apache/tamaya/collections/CollectionsBaseTests.java
new file mode 100644
index 0000000..34c82cb
--- /dev/null
+++ b/collections/src/test/java/org/apache/tamaya/collections/CollectionsBaseTests.java
@@ -0,0 +1,227 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.TypeLiteral;
+import org.junit.Test;
+
+import java.util.*;
+
+import static junit.framework.TestCase.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Basic tests for Tamaya collection support. Relevant configs for this tests:
+ * <pre>base.items=1,2,3,4,5,6,7,8,9,0
+ * base.map=1::a, 2::b, 3::c, [4:: ]
+ * </pre>
+ */
+public class CollectionsBaseTests {
+
+    @Test
+    public void testList_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = config.get("base.items", new TypeLiteral<List<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (List<String>) config.get("base.items", List.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testArrayList_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        ArrayList<String> items = config.get("base.items", new TypeLiteral<ArrayList<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (ArrayList<String>) config.get("base.items", ArrayList.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testLinkedList_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        LinkedList<String> items = config.get("base.items", new TypeLiteral<LinkedList<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (LinkedList<String>) config.get("base.items", LinkedList.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testSet_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = config.get("base.items", new TypeLiteral<Set<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (Set<String>) config.get("base.items", Set.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testSortedSet_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = config.get("base.items", new TypeLiteral<SortedSet<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (SortedSet<String>) config.get("base.items", SortedSet.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testHashSet_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = config.get("base.items", new TypeLiteral<HashSet<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (HashSet<String>) config.get("base.items", HashSet.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testTreeSet_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        TreeSet<String> items = config.get("base.items", new TypeLiteral<TreeSet<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (TreeSet<String>) config.get("base.items", TreeSet.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+
+    @Test
+    public void testMap_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("base.map", new TypeLiteral<Map<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items = (Map<String,String>) config.get("base.map", Map.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+    }
+
+    @Test
+    public void testHashMap_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("base.map", new TypeLiteral<HashMap<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items = (HashMap<String,String>) config.get("base.map", HashMap.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+    }
+
+    @Test
+    public void testSortedMap_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("base.map", new TypeLiteral<SortedMap<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items = (Map<String,String>) config.get("base.map", SortedMap.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+    }
+
+    @Test
+    public void testTreeMap_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        TreeMap<String,String> items = config.get("base.map", new TypeLiteral<TreeMap<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items =  config.get("base.map", TreeMap.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+    }
+
+    @Test
+    public void testCollection_String(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Collection<String> items = config.get("base.items", new TypeLiteral<Collection<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items = (Collection<String>) config.get("base.items", Collection.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-tamaya-sandbox/blob/4c259384/collections/src/test/java/org/apache/tamaya/collections/CollectionsTypedReadOnlyTests.java
----------------------------------------------------------------------
diff --git a/collections/src/test/java/org/apache/tamaya/collections/CollectionsTypedReadOnlyTests.java b/collections/src/test/java/org/apache/tamaya/collections/CollectionsTypedReadOnlyTests.java
new file mode 100644
index 0000000..7882512
--- /dev/null
+++ b/collections/src/test/java/org/apache/tamaya/collections/CollectionsTypedReadOnlyTests.java
@@ -0,0 +1,173 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tamaya.collections;
+
+import org.apache.tamaya.Configuration;
+import org.apache.tamaya.ConfigurationProvider;
+import org.apache.tamaya.TypeLiteral;
+import org.junit.Test;
+
+import java.util.*;
+
+import static junit.framework.TestCase.assertEquals;
+import static org.junit.Assert.*;
+
+/**
+ * Basic tests for Tamaya collection support. Relevant configs for this tests:
+ * <pre>base.items=1,2,3,4,5,6,7,8,9,0
+ * base.map=1::a, 2::b, 3::c, [4:: ]
+ * </pre>
+ */
+public class CollectionsTypedReadOnlyTests {
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testArrayListList_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = config.get("typed.arraylist", new TypeLiteral<List<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testArrayListList_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = (List<String>) config.get("typed.arraylist", List.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testLinkedListList_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = config.get("typed.linkedlist", new TypeLiteral<List<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testLinkedListList_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        List<String> items = (List<String>) config.get("typed.linkedlist", List.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testHashSet_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = config.get("typed.hashset", new TypeLiteral<Set<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+    @Test(expected=UnsupportedOperationException.class)
+    public void testHashSet_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = (Set<String>) config.get("typed.hashset", Set.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testTreeSet_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = config.get("typed.treeset", new TypeLiteral<Set<String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+    @Test(expected=UnsupportedOperationException.class)
+    public void testTreeSet_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Set<String> items = items = (Set<String>) config.get("typed.treeset", Set.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(10, items.size());
+        items.add("test");
+    }
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testHashMap_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("typed.hashmap", new TypeLiteral<Map<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items.put("g","hjhhj");
+    }
+    @Test(expected=UnsupportedOperationException.class)
+    public void testHashMap_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = (Map<String,String>) config.get("typed.hashmap", Map.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items.put("g","hjhhj");
+    }
+
+
+    @Test(expected=UnsupportedOperationException.class)
+    public void testTreeMap_1(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = config.get("typed.treemap", new TypeLiteral<Map<String,String>>(){});
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items.put("g","hjhhj");
+    }
+    @Test(expected=UnsupportedOperationException.class)
+    public void testTreeMap_2(){
+        Configuration config = ConfigurationProvider.getConfiguration();
+        Map<String,String> items = (Map<String,String>) config.get("typed.treemap", Map.class);
+        assertNotNull(items);
+        assertFalse(items.isEmpty());
+        assertEquals(4, items.size());
+        assertEquals("a", items.get("1"));
+        assertEquals("b", items.get("2"));
+        assertEquals("c", items.get("3"));
+        assertEquals(" ", items.get("4"));
+        items.put("g","hjhhj");
+    }
+
+}


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