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Subject: svn commit: r992353 -
 /incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java
Date: Fri, 03 Sep 2010 16:22:37 -0000
To: bval-commits@incubator.apache.org
From: mbenson@apache.org
Message-Id: <20100903162237.8010C2388A1C@eris.apache.org>

Author: mbenson
Date: Fri Sep  3 16:22:37 2010
New Revision: 992353

URL: http://svn.apache.org/viewvc?rev=992353&view=rev
Log:
run formatter

Modified:
    incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java

Modified: incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java
URL: http://svn.apache.org/viewvc/incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java?rev=992353&r1=992352&r2=992353&view=diff
==============================================================================
--- incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java (original)
+++ incubator/bval/trunk/bval-jsr303/src/main/java/org/apache/bval/jsr303/ClassValidator.java Fri Sep  3 16:22:37 2010
@@ -18,7 +18,6 @@
  */
 package org.apache.bval.jsr303;
 
-
 import java.lang.reflect.Modifier;
 import java.util.ArrayList;
 import java.util.List;
@@ -43,7 +42,6 @@ import org.apache.bval.util.AccessStrate
 import org.apache.bval.util.ValidationHelper;
 import org.apache.commons.lang.ClassUtils;
 
-
 // TODO: centralize treatMapsLikeBeans
 
 /**
@@ -55,668 +53,719 @@ import org.apache.commons.lang.ClassUtil
  * API class
  * 
  * @author Roman Stumm
- * @author Carlos Vara
- * <br/>
+ * @author Carlos Vara <br/>
  */
 public class ClassValidator implements Validator {
-  /**
-   * {@link ApacheFactoryContext} used
-   */
-  protected final ApacheFactoryContext factoryContext;
-  /**
-   * {@link GroupsComputer} used
-   */
-  protected final GroupsComputer groupsComputer = new GroupsComputer();
-
-  /**
-   * Create a new ClassValidator instance.
-   * @param factoryContext
-   */
-  public ClassValidator(ApacheFactoryContext factoryContext) {
-    this.factoryContext = factoryContext;
-  }
-
-  /**
-   * Create a new ClassValidator instance.
-   * @param factory
-   * @deprecated provided for backward compatibility
-   */
-  public ClassValidator(ApacheValidatorFactory factory) {
-    this(factory.usingContext());
-  }
-
-  /**
-   * Get the metabean finder associated with this validator.
-   *
-   * @return a MetaBeanFinder
-   * @see org.apache.bval.MetaBeanManagerFactory#getFinder()
-   */
-  public MetaBeanFinder getMetaBeanFinder() {
-    return factoryContext.getMetaBeanFinder();
-  }
-
-  // Validator implementation --------------------------------------------------
-  
-  /**
-   * {@inheritDoc}
-   * Validates all constraints on <code>object</code>.
-   * 
-   * @param object
-   *            object to validate
-   * @param groups
-   *            group or list of groups targeted for validation
-   *            (default to {@link javax.validation.groups.Default})
-   * 
-   * @return constraint violations or an empty Set if none
-   * 
-   * @throws IllegalArgumentException
-   *             if object is null
-   *             or if null is passed to the varargs groups
-   * @throws ValidationException
-   *             if a non recoverable error happens
-   *             during the validation process
-   */
-  // @Override - not allowed in 1.5 for Interface methods
-  @SuppressWarnings("unchecked")
-  public <T> Set<ConstraintViolation<T>> validate(T object, Class<?>... groups) {
-    if (object == null) throw new IllegalArgumentException("cannot validate null");
-    checkGroups(groups);
-
-    try {
-      
-      Class<T> objectClass = (Class<T>) object.getClass();
-      MetaBean objectMetaBean = factoryContext.getMetaBeanFinder().findForClass(objectClass);
-      
-      final GroupValidationContext<T> context =
-          createContext(objectMetaBean, object, objectClass, groups);
-      final ConstraintValidationListener<T> result = context.getListener();
-      final Groups sequence = context.getGroups();
-      
-      // 1. process groups
-      for (Group current : sequence.getGroups()) {
-        context.setCurrentGroup(current);
-        validateBeanNet(context);
-      }
-      
-      // 2. process sequences
-      for (List<Group> eachSeq : sequence.getSequences()) {
-        for (Group current : eachSeq) {
-          context.setCurrentGroup(current);
-          validateBeanNet(context);
-          // if one of the group process in the sequence leads to one or more validation failure,
-          // the groups following in the sequence must not be processed
-          if (!result.isEmpty()) break;
-        }
-        if (!result.isEmpty()) break;
-      }
-      return result.getConstraintViolations();
-    } catch (RuntimeException ex) {
-      throw unrecoverableValidationError(ex, object);
-    }
-  }
-
-  /**
-   * {@inheritDoc}
-   * Validates all constraints placed on the property of <code>object</code>
-   * named <code>propertyName</code>.
-   * 
-   * @param object
-   *            object to validate
-   * @param propertyName
-   *            property to validate (ie field and getter constraints). Nested
-   *            properties may be referenced (e.g. prop[2].subpropA.subpropB)
-   * @param groups
-   *            group or list of groups targeted for validation
-   *            (default to {@link javax.validation.groups.Default})
-   * 
-   * @return constraint violations or an empty Set if none
-   * 
-   * @throws IllegalArgumentException
-   *             if <code>object</code> is null,
-   *             if <code>propertyName</code> null, empty or not a valid
-   *             object property
-   *             or if null is passed to the varargs groups
-   * @throws ValidationException
-   *             if a non recoverable error happens
-   *             during the validation process
-   */
-  // @Override - not allowed in 1.5 for Interface methods
-  @SuppressWarnings("unchecked")
-  public <T> Set<ConstraintViolation<T>> validateProperty(T object, String propertyName,
-                                                          Class<?>... groups) {
-    if (object == null) throw new IllegalArgumentException("cannot validate null");
-
-    checkPropertyName(propertyName);
-    checkGroups(groups);
-
-    try {
-      
-      Class<T> objectClass = (Class<T>) object.getClass();
-      MetaBean objectMetaBean = factoryContext.getMetaBeanFinder().findForClass(objectClass);
-
-      GroupValidationContext<T> context =
-          createContext(objectMetaBean, object, objectClass, groups);
-      ConstraintValidationListener<T> result = context.getListener();
-      NestedMetaProperty nestedProp = getNestedProperty(objectMetaBean, object, propertyName);
-      context.setMetaProperty(nestedProp.getMetaProperty());
-      if (nestedProp.isNested()) {
-        context.setFixedValue(nestedProp.getValue());
-      }
-      if (context.getMetaProperty() == null) throw new IllegalArgumentException(
-          "Unknown property " + object.getClass().getName() + "." + propertyName);
-      Groups sequence = context.getGroups();
-      
-      // 1. process groups
-      for (Group current : sequence.getGroups()) {
-        context.setCurrentGroup(current);
-        validatePropertyInGroup(context);
-      }
-      
-      // 2. process sequences
-      for (List<Group> eachSeq : sequence.getSequences()) {
-        for (Group current : eachSeq) {
-          context.setCurrentGroup(current);
-          validatePropertyInGroup(context);
-          /**
-           * if one of the group process in the sequence leads to one or more validation failure,
-           * the groups following in the sequence must not be processed
-           */
-          if (!result.isEmpty()) break;
-        }
-        if (!result.isEmpty()) break;
-      }
-      return result.getConstraintViolations();
-    } catch (RuntimeException ex) {
-      throw unrecoverableValidationError(ex, object);
-    }
-  }
-
-  /**
-   * {@inheritDoc}
-   * Validates all constraints placed on the property named
-   * <code>propertyName</code> of the class <code>beanType</code> would the
-   * property value be <code>value</code>
-   * <p/>
-   * <code>ConstraintViolation</code> objects return null for
-   * {@link ConstraintViolation#getRootBean()} and
-   * {@link ConstraintViolation#getLeafBean()}
-   * 
-   * @param beanType
-   *            the bean type
-   * @param propertyName
-   *            property to validate
-   * @param value
-   *            property value to validate
-   * @param groups
-   *            group or list of groups targeted for validation
-   *            (default to {@link javax.validation.groups.Default})
-   * 
-   * @return constraint violations or an empty Set if none
-   * 
-   * @throws IllegalArgumentException
-   *             if <code>beanType</code> is null,
-   *             if <code>propertyName</code> null, empty or not a valid
-   *             object property
-   *             or if null is passed to the varargs groups
-   * @throws ValidationException
-   *             if a non recoverable error happens
-   *             during the validation process
-   */
-  // @Override - not allowed in 1.5 for Interface methods
-  public <T> Set<ConstraintViolation<T>> validateValue(Class<T> beanType,
-                                                       String propertyName, Object value,
-                                                       Class<?>... groups) {
-
-    checkBeanType(beanType);
-    checkPropertyName(propertyName);
-    checkGroups(groups);
-
-    try {
-      MetaBean metaBean = factoryContext.getMetaBeanFinder().findForClass(beanType);
-      GroupValidationContext<T> context =
-          createContext(metaBean, null, beanType, groups);
-      ConstraintValidationListener<T> result = context.getListener();
-      context.setMetaProperty(
-          getNestedProperty(metaBean, null, propertyName).getMetaProperty());
-      context.setFixedValue(value);
-      Groups sequence = context.getGroups();
-      
-      // 1. process groups
-      for (Group current : sequence.getGroups()) {
-        context.setCurrentGroup(current);
-        validatePropertyInGroup(context);
-      }
-      // 2. process sequences
-      for (List<Group> eachSeq : sequence.getSequences()) {
-        for (Group current : eachSeq) {
-          context.setCurrentGroup(current);
-          validatePropertyInGroup(context);
-          // if one of the group process in the sequence leads to one or more validation failure,
-          // the groups following in the sequence must not be processed
-          if (!result.isEmpty()) break;
-        }
-        if (!result.isEmpty()) break;
-      }
-      return result.getConstraintViolations();
-    } catch (RuntimeException ex) {
-      throw unrecoverableValidationError(ex, value);
-    }
-  }
-  
-  /**
-   * {@inheritDoc}
-   * Return the descriptor object describing bean constraints.
-   * The returned object (and associated objects including
-   * <code>ConstraintDescriptor<code>s) are immutable.
-   * 
-   * @param clazz
-   *            class or interface type evaluated
-   * 
-   * @return the bean descriptor for the specified class.
-   * 
-   * @throws IllegalArgumentException
-   *             if clazz is null
-   * @throws ValidationException
-   *             if a non recoverable error happens
-   *             during the metadata discovery or if some
-   *             constraints are invalid.
-   */
-  // @Override - not allowed in 1.5 for Interface methods
-  public BeanDescriptor getConstraintsForClass(Class<?> clazz) {
-    if (clazz == null) {
-      throw new IllegalArgumentException("Class cannot be null");
-    }
-    try {
-      MetaBean metaBean = factoryContext.getMetaBeanFinder().findForClass(clazz);
-      BeanDescriptorImpl edesc =
-          metaBean.getFeature(Jsr303Features.Bean.BEAN_DESCRIPTOR);
-      if (edesc == null) {
-        edesc = createBeanDescriptor(metaBean);
-        metaBean.putFeature(Jsr303Features.Bean.BEAN_DESCRIPTOR, edesc);
-      }
-      return edesc;
-    } catch (RuntimeException ex) {
-      throw new ValidationException("error retrieving constraints for " + clazz, ex);
-    }
-  }
-  
-  /**
-   * {@inheritDoc}
-   * Return an instance of the specified type allowing access to
-   * provider-specific APIs. If the Bean Validation provider
-   * implementation does not support the specified class,
-   * <code>ValidationException</code> is thrown.
-   * 
-   * @param type
-   *            the class of the object to be returned.
-   * 
-   * @return an instance of the specified class
-   * 
-   * @throws ValidationException
-   *             if the provider does not support the call.
-   */
-  // @Override - not allowed in 1.5 for Interface methods
-  public <T> T unwrap(Class<T> type) {
-    if (type.isAssignableFrom(getClass())) {
-      @SuppressWarnings("unchecked")
-      final T result = (T) this;
-      return result;
-    } else if (!(type.isInterface() || Modifier.isAbstract(type.getModifiers()))) {
-      return SecureActions.newInstance(type, new Class[]{ApacheFactoryContext.class},
-          new Object[]{factoryContext});
-    } else {
-      try {
-        Class<?> cls = ClassUtils.getClass(type.getName() + "Impl");
-        if (type.isAssignableFrom(cls)) {
-          @SuppressWarnings("unchecked")
-          final Class<? extends T> implClass = (Class<? extends T>) cls;
-          return SecureActions.newInstance(implClass,
-              new Class[]{ApacheFactoryContext.class}, new Object[]{factoryContext});
-        }
-      } catch (ClassNotFoundException e) {
-      }
-      throw new ValidationException("Type " + type + " not supported");
-    }
-  }
-  
-  
-  // Helpers -------------------------------------------------------------------
-  
-  /**
-   * Validates a bean and all its cascaded related beans for the currently
-   * defined group.
-   * <p>
-   * Special code is present to manage the {@link Default} group.
-   * 
-   * @param validationContext
-   *            The current context of this validation call. Must have its
-   *            {@link GroupValidationContext#getCurrentGroup()} field set.
-   */
-  protected void validateBeanNet(GroupValidationContext<?> context) {
-
-    // If reached a cascaded bean which is null
-    if (context.getBean() == null) {
-      return;
-    }
-
-    // If reached a cascaded bean which has already been validated for the current group
-    if (!context.collectValidated()) {
-      return;
-    }
-
-
-    // ### First, validate the bean
-
-    // Default is a special case
-    if (context.getCurrentGroup().isDefault()) {
-
-      List<Group> defaultGroups = expandDefaultGroup(context);
-      final ConstraintValidationListener<?> result = (ConstraintValidationListener<?>) context.getListener();
+    /**
+     * {@link ApacheFactoryContext} used
+     */
+    protected final ApacheFactoryContext factoryContext;
+    /**
+     * {@link GroupsComputer} used
+     */
+    protected final GroupsComputer groupsComputer = new GroupsComputer();
+
+    /**
+     * Create a new ClassValidator instance.
+     * 
+     * @param factoryContext
+     */
+    public ClassValidator(ApacheFactoryContext factoryContext) {
+        this.factoryContext = factoryContext;
+    }
+
+    /**
+     * Create a new ClassValidator instance.
+     * 
+     * @param factory
+     * @deprecated provided for backward compatibility
+     */
+    public ClassValidator(ApacheValidatorFactory factory) {
+        this(factory.usingContext());
+    }
+
+    /**
+     * Get the metabean finder associated with this validator.
+     * 
+     * @return a MetaBeanFinder
+     * @see org.apache.bval.MetaBeanManagerFactory#getFinder()
+     */
+    public MetaBeanFinder getMetaBeanFinder() {
+        return factoryContext.getMetaBeanFinder();
+    }
+
+    // Validator implementation
+    // --------------------------------------------------
+
+    /**
+     * {@inheritDoc} Validates all constraints on <code>object</code>.
+     * 
+     * @param object
+     *            object to validate
+     * @param groups
+     *            group or list of groups targeted for validation (default to
+     *            {@link javax.validation.groups.Default})
+     * 
+     * @return constraint violations or an empty Set if none
+     * 
+     * @throws IllegalArgumentException
+     *             if object is null or if null is passed to the varargs groups
+     * @throws ValidationException
+     *             if a non recoverable error happens during the validation
+     *             process
+     */
+    // @Override - not allowed in 1.5 for Interface methods
+    @SuppressWarnings("unchecked")
+    public <T> Set<ConstraintViolation<T>> validate(T object,
+        Class<?>... groups) {
+        if (object == null)
+            throw new IllegalArgumentException("cannot validate null");
+        checkGroups(groups);
+
+        try {
+
+            Class<T> objectClass = (Class<T>) object.getClass();
+            MetaBean objectMetaBean =
+                factoryContext.getMetaBeanFinder().findForClass(objectClass);
+
+            final GroupValidationContext<T> context =
+                createContext(objectMetaBean, object, objectClass, groups);
+            final ConstraintValidationListener<T> result =
+                context.getListener();
+            final Groups sequence = context.getGroups();
+
+            // 1. process groups
+            for (Group current : sequence.getGroups()) {
+                context.setCurrentGroup(current);
+                validateBeanNet(context);
+            }
 
-      // If the rootBean defines a GroupSequence
-      if (defaultGroups.size() > 1) {
+            // 2. process sequences
+            for (List<Group> eachSeq : sequence.getSequences()) {
+                for (Group current : eachSeq) {
+                    context.setCurrentGroup(current);
+                    validateBeanNet(context);
+                    // if one of the group process in the sequence leads to one
+                    // or more validation failure,
+                    // the groups following in the sequence must not be
+                    // processed
+                    if (!result.isEmpty())
+                        break;
+                }
+                if (!result.isEmpty())
+                    break;
+            }
+            return result.getConstraintViolations();
+        } catch (RuntimeException ex) {
+            throw unrecoverableValidationError(ex, object);
+        }
+    }
 
-        int numViolations = result.violationsSize();
+    /**
+     * {@inheritDoc} Validates all constraints placed on the property of
+     * <code>object</code> named <code>propertyName</code>.
+     * 
+     * @param object
+     *            object to validate
+     * @param propertyName
+     *            property to validate (ie field and getter constraints). Nested
+     *            properties may be referenced (e.g. prop[2].subpropA.subpropB)
+     * @param groups
+     *            group or list of groups targeted for validation (default to
+     *            {@link javax.validation.groups.Default})
+     * 
+     * @return constraint violations or an empty Set if none
+     * 
+     * @throws IllegalArgumentException
+     *             if <code>object</code> is null, if <code>propertyName</code>
+     *             null, empty or not a valid object property or if null is
+     *             passed to the varargs groups
+     * @throws ValidationException
+     *             if a non recoverable error happens during the validation
+     *             process
+     */
+    // @Override - not allowed in 1.5 for Interface methods
+    @SuppressWarnings("unchecked")
+    public <T> Set<ConstraintViolation<T>> validateProperty(T object,
+        String propertyName, Class<?>... groups) {
+        if (object == null)
+            throw new IllegalArgumentException("cannot validate null");
+
+        checkPropertyName(propertyName);
+        checkGroups(groups);
+
+        try {
+
+            Class<T> objectClass = (Class<T>) object.getClass();
+            MetaBean objectMetaBean =
+                factoryContext.getMetaBeanFinder().findForClass(objectClass);
+
+            GroupValidationContext<T> context =
+                createContext(objectMetaBean, object, objectClass, groups);
+            ConstraintValidationListener<T> result = context.getListener();
+            NestedMetaProperty nestedProp =
+                getNestedProperty(objectMetaBean, object, propertyName);
+            context.setMetaProperty(nestedProp.getMetaProperty());
+            if (nestedProp.isNested()) {
+                context.setFixedValue(nestedProp.getValue());
+            }
+            if (context.getMetaProperty() == null)
+                throw new IllegalArgumentException("Unknown property "
+                    + object.getClass().getName() + "." + propertyName);
+            Groups sequence = context.getGroups();
+
+            // 1. process groups
+            for (Group current : sequence.getGroups()) {
+                context.setCurrentGroup(current);
+                validatePropertyInGroup(context);
+            }
 
-        // Validate the bean for each group in the sequence
-        Group currentGroup = context.getCurrentGroup();
-        for (Group each : defaultGroups) {
-          context.setCurrentGroup(each);
-          ValidationHelper.validateBean(context);
-          // Spec 3.4.3 - Stop validation if errors already found
-          if (result.violationsSize() > numViolations) {
-            break;
-          }
-        }
-        context.setCurrentGroup(currentGroup);
-      } else {
-
-        // For each class in the hierarchy of classes of rootBean,
-        // validate the constraints defined in that class according
-        // to the GroupSequence defined in the same class
-
-        // Obtain the full class hierarchy
-        List<Class<?>> classHierarchy = new ArrayList<Class<?>>();
-        ClassHelper.fillFullClassHierarchyAsList(classHierarchy, context.getMetaBean().getBeanClass());
-        Class<?> initialOwner = context.getCurrentOwner();
-
-        // For each owner in the hierarchy
-        for (Class<?> owner : classHierarchy) {
-          context.setCurrentOwner(owner);
-
-          int numViolations = result.violationsSize();
-
-          // Obtain the group sequence of the owner, and use it for the constraints that belong to it
-          List<Group> ownerDefaultGroups =
-              context.getMetaBean().getFeature("{GroupSequence:" + owner.getCanonicalName() + "}");
-          for (Group each : ownerDefaultGroups) {
-            context.setCurrentGroup(each);
+            // 2. process sequences
+            for (List<Group> eachSeq : sequence.getSequences()) {
+                for (Group current : eachSeq) {
+                    context.setCurrentGroup(current);
+                    validatePropertyInGroup(context);
+                    /**
+                     * if one of the group process in the sequence leads to one
+                     * or more validation failure, the groups following in the
+                     * sequence must not be processed
+                     */
+                    if (!result.isEmpty())
+                        break;
+                }
+                if (!result.isEmpty())
+                    break;
+            }
+            return result.getConstraintViolations();
+        } catch (RuntimeException ex) {
+            throw unrecoverableValidationError(ex, object);
+        }
+    }
+
+    /**
+     * {@inheritDoc} Validates all constraints placed on the property named
+     * <code>propertyName</code> of the class <code>beanType</code> would the
+     * property value be <code>value</code>
+     * <p/>
+     * <code>ConstraintViolation</code> objects return null for
+     * {@link ConstraintViolation#getRootBean()} and
+     * {@link ConstraintViolation#getLeafBean()}
+     * 
+     * @param beanType
+     *            the bean type
+     * @param propertyName
+     *            property to validate
+     * @param value
+     *            property value to validate
+     * @param groups
+     *            group or list of groups targeted for validation (default to
+     *            {@link javax.validation.groups.Default})
+     * 
+     * @return constraint violations or an empty Set if none
+     * 
+     * @throws IllegalArgumentException
+     *             if <code>beanType</code> is null, if
+     *             <code>propertyName</code> null, empty or not a valid object
+     *             property or if null is passed to the varargs groups
+     * @throws ValidationException
+     *             if a non recoverable error happens during the validation
+     *             process
+     */
+    // @Override - not allowed in 1.5 for Interface methods
+    public <T> Set<ConstraintViolation<T>> validateValue(Class<T> beanType,
+        String propertyName, Object value, Class<?>... groups) {
+
+        checkBeanType(beanType);
+        checkPropertyName(propertyName);
+        checkGroups(groups);
+
+        try {
+            MetaBean metaBean =
+                factoryContext.getMetaBeanFinder().findForClass(beanType);
+            GroupValidationContext<T> context =
+                createContext(metaBean, null, beanType, groups);
+            ConstraintValidationListener<T> result = context.getListener();
+            context.setMetaProperty(getNestedProperty(metaBean, null,
+                propertyName).getMetaProperty());
+            context.setFixedValue(value);
+            Groups sequence = context.getGroups();
+
+            // 1. process groups
+            for (Group current : sequence.getGroups()) {
+                context.setCurrentGroup(current);
+                validatePropertyInGroup(context);
+            }
+            // 2. process sequences
+            for (List<Group> eachSeq : sequence.getSequences()) {
+                for (Group current : eachSeq) {
+                    context.setCurrentGroup(current);
+                    validatePropertyInGroup(context);
+                    // if one of the group process in the sequence leads to one
+                    // or more validation failure,
+                    // the groups following in the sequence must not be
+                    // processed
+                    if (!result.isEmpty())
+                        break;
+                }
+                if (!result.isEmpty())
+                    break;
+            }
+            return result.getConstraintViolations();
+        } catch (RuntimeException ex) {
+            throw unrecoverableValidationError(ex, value);
+        }
+    }
+
+    /**
+     * {@inheritDoc} Return the descriptor object describing bean constraints.
+     * The returned object (and associated objects including
+     * <code>ConstraintDescriptor<code>s) are immutable.
+     * 
+     * @param clazz
+     *            class or interface type evaluated
+     * 
+     * @return the bean descriptor for the specified class.
+     * 
+     * @throws IllegalArgumentException
+     *             if clazz is null
+     * @throws ValidationException
+     *             if a non recoverable error happens during the metadata
+     *             discovery or if some constraints are invalid.
+     */
+    // @Override - not allowed in 1.5 for Interface methods
+    public BeanDescriptor getConstraintsForClass(Class<?> clazz) {
+        if (clazz == null) {
+            throw new IllegalArgumentException("Class cannot be null");
+        }
+        try {
+            MetaBean metaBean =
+                factoryContext.getMetaBeanFinder().findForClass(clazz);
+            BeanDescriptorImpl edesc =
+                metaBean.getFeature(Jsr303Features.Bean.BEAN_DESCRIPTOR);
+            if (edesc == null) {
+                edesc = createBeanDescriptor(metaBean);
+                metaBean.putFeature(Jsr303Features.Bean.BEAN_DESCRIPTOR, edesc);
+            }
+            return edesc;
+        } catch (RuntimeException ex) {
+            throw new ValidationException("error retrieving constraints for "
+                + clazz, ex);
+        }
+    }
+
+    /**
+     * {@inheritDoc} Return an instance of the specified type allowing access to
+     * provider-specific APIs. If the Bean Validation provider implementation
+     * does not support the specified class, <code>ValidationException</code> is
+     * thrown.
+     * 
+     * @param type
+     *            the class of the object to be returned.
+     * 
+     * @return an instance of the specified class
+     * 
+     * @throws ValidationException
+     *             if the provider does not support the call.
+     */
+    // @Override - not allowed in 1.5 for Interface methods
+    public <T> T unwrap(Class<T> type) {
+        if (type.isAssignableFrom(getClass())) {
+            @SuppressWarnings("unchecked")
+            final T result = (T) this;
+            return result;
+        } else if (!(type.isInterface() || Modifier.isAbstract(type
+            .getModifiers()))) {
+            return SecureActions.newInstance(type,
+                new Class[] { ApacheFactoryContext.class },
+                new Object[] { factoryContext });
+        } else {
+            try {
+                Class<?> cls = ClassUtils.getClass(type.getName() + "Impl");
+                if (type.isAssignableFrom(cls)) {
+                    @SuppressWarnings("unchecked")
+                    final Class<? extends T> implClass =
+                        (Class<? extends T>) cls;
+                    return SecureActions.newInstance(implClass,
+                        new Class[] { ApacheFactoryContext.class },
+                        new Object[] { factoryContext });
+                }
+            } catch (ClassNotFoundException e) {
+            }
+            throw new ValidationException("Type " + type + " not supported");
+        }
+    }
+
+    // Helpers
+    // -------------------------------------------------------------------
+
+    /**
+     * Validates a bean and all its cascaded related beans for the currently
+     * defined group.
+     * <p>
+     * Special code is present to manage the {@link Default} group.
+     * 
+     * @param validationContext
+     *            The current context of this validation call. Must have its
+     *            {@link GroupValidationContext#getCurrentGroup()} field set.
+     */
+    protected void validateBeanNet(GroupValidationContext<?> context) {
+
+        // If reached a cascaded bean which is null
+        if (context.getBean() == null) {
+            return;
+        }
+
+        // If reached a cascaded bean which has already been validated for the
+        // current group
+        if (!context.collectValidated()) {
+            return;
+        }
+
+        // ### First, validate the bean
+
+        // Default is a special case
+        if (context.getCurrentGroup().isDefault()) {
+
+            List<Group> defaultGroups = expandDefaultGroup(context);
+            final ConstraintValidationListener<?> result =
+                (ConstraintValidationListener<?>) context.getListener();
+
+            // If the rootBean defines a GroupSequence
+            if (defaultGroups.size() > 1) {
+
+                int numViolations = result.violationsSize();
+
+                // Validate the bean for each group in the sequence
+                Group currentGroup = context.getCurrentGroup();
+                for (Group each : defaultGroups) {
+                    context.setCurrentGroup(each);
+                    ValidationHelper.validateBean(context);
+                    // Spec 3.4.3 - Stop validation if errors already found
+                    if (result.violationsSize() > numViolations) {
+                        break;
+                    }
+                }
+                context.setCurrentGroup(currentGroup);
+            } else {
+
+                // For each class in the hierarchy of classes of rootBean,
+                // validate the constraints defined in that class according
+                // to the GroupSequence defined in the same class
+
+                // Obtain the full class hierarchy
+                List<Class<?>> classHierarchy = new ArrayList<Class<?>>();
+                ClassHelper.fillFullClassHierarchyAsList(classHierarchy,
+                    context.getMetaBean().getBeanClass());
+                Class<?> initialOwner = context.getCurrentOwner();
+
+                // For each owner in the hierarchy
+                for (Class<?> owner : classHierarchy) {
+                    context.setCurrentOwner(owner);
+
+                    int numViolations = result.violationsSize();
+
+                    // Obtain the group sequence of the owner, and use it for
+                    // the constraints that belong to it
+                    List<Group> ownerDefaultGroups =
+                        context.getMetaBean().getFeature(
+                            "{GroupSequence:" + owner.getCanonicalName() + "}");
+                    for (Group each : ownerDefaultGroups) {
+                        context.setCurrentGroup(each);
+                        ValidationHelper.validateBean(context);
+                        // Spec 3.4.3 - Stop validation if errors already found
+                        if (result.violationsSize() > numViolations) {
+                            break;
+                        }
+                    }
+
+                }
+                context.setCurrentOwner(initialOwner);
+                context.setCurrentGroup(Group.DEFAULT);
+
+            }
+
+        }
+        // if not the default group, proceed as normal
+        else {
             ValidationHelper.validateBean(context);
-            // Spec 3.4.3 - Stop validation if errors already found
-            if (result.violationsSize() > numViolations) {
-              break;
-            }
-          }
-
-        }
-        context.setCurrentOwner(initialOwner);
-        context.setCurrentGroup(Group.DEFAULT);
-
-      }
-
-    }
-    // if not the default group, proceed as normal
-    else {
-        ValidationHelper.validateBean(context);
-    }
-
-
-    // ### Then, the cascaded beans (@Valid)
-    for (MetaProperty prop : context.getMetaBean().getProperties()) {
-      validateCascadedBean(context, prop);
-    }
-
-  }
-
-  /**
-   * Checks if the the meta property <code>prop</code> defines a cascaded
-   * bean, and in case it does, validates it.
-   * 
-   * @param context
-   *            The current validation context.
-   * @param prop
-   *            The property to cascade from (in case it is possible).
-   */
-  private void validateCascadedBean(GroupValidationContext<?> context, MetaProperty prop) {
-    AccessStrategy[] access = prop.getFeature(Features.Property.REF_CASCADE);
-    if (access != null) { // different accesses to relation
-      // save old values from context
-      final Object bean = context.getBean();
-      final MetaBean mbean = context.getMetaBean();
-      for (AccessStrategy each : access) {
-        if (isCascadable(context, prop, each)) {
-          // modify context state for relationship-target bean
-          context.moveDown(prop, each);
-          // Now, if the related bean is an instance of Map/Array/etc,
-          ValidationHelper.validateContext(context, new Jsr303ValidationCallback(context), treatMapsLikeBeans);
-          // restore old values in context
-          context.moveUp(bean, mbean);
-        }
-      }
-    }
-  }
-
-  /**
-   * Before accessing a related bean (marked with {@link javax.validation.Valid}), the
-   * validator has to check if it is reachable and cascadable.
-   *
-   * @param context The current validation context.
-   * @param prop    The property of the related bean.
-   * @param access  The access strategy used to get the related bean value.
-   * @return <code>true</code> if the validator can access the related bean,
-   *         <code>false</code> otherwise.
-   */
-  private boolean isCascadable(GroupValidationContext<?> context, MetaProperty prop, AccessStrategy access) {
-
-    PathImpl beanPath = context.getPropertyPath();
-    NodeImpl node = new NodeImpl(prop.getName());
-    if (beanPath == null) {
-      beanPath = PathImpl.create(null);
-    }
-    try {
-      if (!context.getTraversableResolver().isReachable(
-          context.getBean(), node,
-          context.getRootMetaBean().getBeanClass(), beanPath,
-          access.getElementType()))
-        return false;
-    } catch (RuntimeException e) {
-      throw new ValidationException("Error in TraversableResolver.isReachable() for " + context.getBean(), e);
-    }
-
-    try {
-      if (!context.getTraversableResolver().isCascadable(
-          context.getBean(), node,
-          context.getRootMetaBean().getBeanClass(), beanPath,
-          access.getElementType()))
-        return false;
-    } catch (RuntimeException e) {
-      throw new ValidationException("Error TraversableResolver.isCascadable() for " + context.getBean(), e);
-    }
-
-    return true;
-  }
-
-  /**
-   * in case of a default group return the list of groups
-   * for a redefined default GroupSequence
-   *
-   * @return null when no in default group or default group sequence not redefined
-   */
-  private List<Group> expandDefaultGroup(GroupValidationContext<?> context) {
-    if (context.getCurrentGroup().isDefault()) {
-      // mention if metaBean redefines the default group
-      List<Group> groupSeq =
-          context.getMetaBean().getFeature(Jsr303Features.Bean.GROUP_SEQUENCE);
-      if (groupSeq != null) {
-        context.getGroups().assertDefaultGroupSequenceIsExpandable(groupSeq);
-      }
-      return groupSeq;
-    } else {
-      return null;
-    }
-  }
-
-  /**
-   * Generate an unrecoverable validation error
-   * @param ex
-   * @param object
-   * @return a {@link RuntimeException} of the appropriate type
-   */
-  protected static RuntimeException unrecoverableValidationError(RuntimeException ex,
-                                                          Object object) {
-    if (ex instanceof UnknownPropertyException) {
-      // Convert to IllegalArgumentException
-      return new IllegalArgumentException(ex.getMessage(), ex);
-    } else if (ex instanceof ValidationException) {
-      return ex; // do not wrap specific ValidationExceptions (or instances from subclasses)
-    } else {
-      return new ValidationException("error during validation of " + object, ex);
-    }
-  }
-
-  private void validatePropertyInGroup(GroupValidationContext<?> context) {
-    Group currentGroup = context.getCurrentGroup();
-    List<Group> defaultGroups = expandDefaultGroup(context);
-    if (defaultGroups != null) {
-      for (Group each : defaultGroups) {
-        context.setCurrentGroup(each);
-        ValidationHelper.validateProperty(context);
-        // continue validation, even if errors already found: if (!result.isEmpty())
-      }
-      context.setCurrentGroup(currentGroup); // restore
-    } else {
-        ValidationHelper.validateProperty(context);
-    }
-  }
-
-  /**
-   * find the MetaProperty for the given propertyName,
-   * which could contain a path, following the path on a given object to resolve
-   * types at runtime from the instance
-   */
-  private NestedMetaProperty getNestedProperty(MetaBean metaBean, Object t,
-                                               String propertyName) {
-    NestedMetaProperty nested = new NestedMetaProperty(propertyName, t);
-    nested.setMetaBean(metaBean);
-    nested.parse();
-    return nested;
-  }
-
-  /**
-   * Create a {@link GroupValidationContext}.
-   * @param <T>
-   * @param metaBean
-   * @param object
-   * @param objectClass
-   * @param groups
-   * @return {@link GroupValidationContext} instance
-   */
-  protected <T> GroupValidationContext<T> createContext(
-      MetaBean metaBean, T object, Class<T> objectClass, Class<?>[] groups) {
-    ConstraintValidationListener<T> listener = new ConstraintValidationListener<T>(object, objectClass);
-    GroupValidationContextImpl<T> context =
-        new GroupValidationContextImpl<T>(listener,
-            this.factoryContext.getMessageInterpolator(),
-            this.factoryContext.getTraversableResolver(), metaBean);
-    context.setBean(object, metaBean);
-    context.setGroups(groupsComputer.computeGroups(groups));
-    return context;
-  }
-
-  /**
-   * Create a {@link BeanDescriptorImpl}
-   * @param metaBean
-   * @return {@link BeanDescriptorImpl} instance
-   */
-  protected BeanDescriptorImpl createBeanDescriptor(MetaBean metaBean) {
-    return new BeanDescriptorImpl(factoryContext, metaBean, metaBean.getValidations());
-  }
-  
-  private boolean treatMapsLikeBeans = false;
-  
-  /**
-   * Behavior configuration -
-   * <pre>
-   * parameter: treatMapsLikeBeans - true (validate maps like beans, so that
-   *                             you can use Maps to validate dynamic classes or
-   *                             beans for which you have the MetaBean but no instances)
-   *                           - false (default), validate maps like collections
-   *                             (validating the values only)
-   * </pre>
-   * (is still configuration to better in BeanValidationContext?)
-   */
-  public boolean isTreatMapsLikeBeans() {
-    return treatMapsLikeBeans;
-  }
-
-
-  public void setTreatMapsLikeBeans(boolean treatMapsLikeBeans) {
-    this.treatMapsLikeBeans = treatMapsLikeBeans;
-  }
-
-  /**
-   * Checks that beanType is valid according to spec Section 4.1.1 i. Throws
-   * an {@link IllegalArgumentException} if it is not.
-   *
-   * @param beanType Bean type to check.
-   */
-  private void checkBeanType(Class<?> beanType) {
-    if (beanType == null) {
-      throw new IllegalArgumentException("Bean type cannot be null.");
-    }
-  }
-
-  /**
-   * Checks that the property name is valid according to spec Section 4.1.1 i.
-   * Throws an {@link IllegalArgumentException} if it is not.
-   *
-   * @param propertyName Property name to check.
-   */
-  private void checkPropertyName(String propertyName) {
-    if (propertyName == null || propertyName.trim().length() == 0) {
-      throw new IllegalArgumentException("Property path cannot be null or empty.");
-    }
-  }
-
-  /**
-   * Checks that the groups array is valid according to spec Section 4.1.1 i.
-   * Throws an {@link IllegalArgumentException} if it is not.
-   *
-   * @param groups The groups to check.
-   */
-  private void checkGroups(Class<?>[] groups) {
-    if (groups == null) {
-      throw new IllegalArgumentException("Groups cannot be null.");
-    }
-  }
-  
-  /**
-   * Dispatches a call from {@link #validate()} to
-   * {@link ClassValidator#validateBeanNet(GroupValidationContext)} with the
-   * current context set.
-   */
-  protected class Jsr303ValidationCallback implements ValidationHelper.ValidateCallback {
-
-    private final GroupValidationContext<?> context;
-
-    public Jsr303ValidationCallback(GroupValidationContext<?> context) {
-        this.context = context;
+        }
+
+        // ### Then, the cascaded beans (@Valid)
+        for (MetaProperty prop : context.getMetaBean().getProperties()) {
+            validateCascadedBean(context, prop);
+        }
+
+    }
+
+    /**
+     * Checks if the the meta property <code>prop</code> defines a cascaded
+     * bean, and in case it does, validates it.
+     * 
+     * @param context
+     *            The current validation context.
+     * @param prop
+     *            The property to cascade from (in case it is possible).
+     */
+    private void validateCascadedBean(GroupValidationContext<?> context,
+        MetaProperty prop) {
+        AccessStrategy[] access =
+            prop.getFeature(Features.Property.REF_CASCADE);
+        if (access != null) { // different accesses to relation
+            // save old values from context
+            final Object bean = context.getBean();
+            final MetaBean mbean = context.getMetaBean();
+            for (AccessStrategy each : access) {
+                if (isCascadable(context, prop, each)) {
+                    // modify context state for relationship-target bean
+                    context.moveDown(prop, each);
+                    // Now, if the related bean is an instance of Map/Array/etc,
+                    ValidationHelper.validateContext(context,
+                        new Jsr303ValidationCallback(context),
+                        treatMapsLikeBeans);
+                    // restore old values in context
+                    context.moveUp(bean, mbean);
+                }
+            }
+        }
+    }
+
+    /**
+     * Before accessing a related bean (marked with
+     * {@link javax.validation.Valid}), the validator has to check if it is
+     * reachable and cascadable.
+     * 
+     * @param context
+     *            The current validation context.
+     * @param prop
+     *            The property of the related bean.
+     * @param access
+     *            The access strategy used to get the related bean value.
+     * @return <code>true</code> if the validator can access the related bean,
+     *         <code>false</code> otherwise.
+     */
+    private boolean isCascadable(GroupValidationContext<?> context,
+        MetaProperty prop, AccessStrategy access) {
+
+        PathImpl beanPath = context.getPropertyPath();
+        NodeImpl node = new NodeImpl(prop.getName());
+        if (beanPath == null) {
+            beanPath = PathImpl.create(null);
+        }
+        try {
+            if (!context.getTraversableResolver().isReachable(
+                context.getBean(), node,
+                context.getRootMetaBean().getBeanClass(), beanPath,
+                access.getElementType()))
+                return false;
+        } catch (RuntimeException e) {
+            throw new ValidationException(
+                "Error in TraversableResolver.isReachable() for "
+                    + context.getBean(), e);
+        }
+
+        try {
+            if (!context.getTraversableResolver().isCascadable(
+                context.getBean(), node,
+                context.getRootMetaBean().getBeanClass(), beanPath,
+                access.getElementType()))
+                return false;
+        } catch (RuntimeException e) {
+            throw new ValidationException(
+                "Error TraversableResolver.isCascadable() for "
+                    + context.getBean(), e);
+        }
+
+        return true;
+    }
+
+    /**
+     * in case of a default group return the list of groups for a redefined
+     * default GroupSequence
+     * 
+     * @return null when no in default group or default group sequence not
+     *         redefined
+     */
+    private List<Group> expandDefaultGroup(GroupValidationContext<?> context) {
+        if (context.getCurrentGroup().isDefault()) {
+            // mention if metaBean redefines the default group
+            List<Group> groupSeq =
+                context.getMetaBean().getFeature(
+                    Jsr303Features.Bean.GROUP_SEQUENCE);
+            if (groupSeq != null) {
+                context.getGroups().assertDefaultGroupSequenceIsExpandable(
+                    groupSeq);
+            }
+            return groupSeq;
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Generate an unrecoverable validation error
+     * 
+     * @param ex
+     * @param object
+     * @return a {@link RuntimeException} of the appropriate type
+     */
+    protected static RuntimeException unrecoverableValidationError(
+        RuntimeException ex, Object object) {
+        if (ex instanceof UnknownPropertyException) {
+            // Convert to IllegalArgumentException
+            return new IllegalArgumentException(ex.getMessage(), ex);
+        } else if (ex instanceof ValidationException) {
+            return ex; // do not wrap specific ValidationExceptions (or
+                       // instances from subclasses)
+        } else {
+            return new ValidationException("error during validation of "
+                + object, ex);
+        }
     }
 
-    public void validate() {
-        validateBeanNet(context);
+    private void validatePropertyInGroup(GroupValidationContext<?> context) {
+        Group currentGroup = context.getCurrentGroup();
+        List<Group> defaultGroups = expandDefaultGroup(context);
+        if (defaultGroups != null) {
+            for (Group each : defaultGroups) {
+                context.setCurrentGroup(each);
+                ValidationHelper.validateProperty(context);
+                // continue validation, even if errors already found: if
+                // (!result.isEmpty())
+            }
+            context.setCurrentGroup(currentGroup); // restore
+        } else {
+            ValidationHelper.validateProperty(context);
+        }
+    }
+
+    /**
+     * find the MetaProperty for the given propertyName, which could contain a
+     * path, following the path on a given object to resolve types at runtime
+     * from the instance
+     */
+    private NestedMetaProperty getNestedProperty(MetaBean metaBean, Object t,
+        String propertyName) {
+        NestedMetaProperty nested = new NestedMetaProperty(propertyName, t);
+        nested.setMetaBean(metaBean);
+        nested.parse();
+        return nested;
+    }
+
+    /**
+     * Create a {@link GroupValidationContext}.
+     * 
+     * @param <T>
+     * @param metaBean
+     * @param object
+     * @param objectClass
+     * @param groups
+     * @return {@link GroupValidationContext} instance
+     */
+    protected <T> GroupValidationContext<T> createContext(MetaBean metaBean,
+        T object, Class<T> objectClass, Class<?>[] groups) {
+        ConstraintValidationListener<T> listener =
+            new ConstraintValidationListener<T>(object, objectClass);
+        GroupValidationContextImpl<T> context =
+            new GroupValidationContextImpl<T>(listener, this.factoryContext
+                .getMessageInterpolator(), this.factoryContext
+                .getTraversableResolver(), metaBean);
+        context.setBean(object, metaBean);
+        context.setGroups(groupsComputer.computeGroups(groups));
+        return context;
+    }
+
+    /**
+     * Create a {@link BeanDescriptorImpl}
+     * 
+     * @param metaBean
+     * @return {@link BeanDescriptorImpl} instance
+     */
+    protected BeanDescriptorImpl createBeanDescriptor(MetaBean metaBean) {
+        return new BeanDescriptorImpl(factoryContext, metaBean, metaBean
+            .getValidations());
+    }
+
+    private boolean treatMapsLikeBeans = false;
+
+    /**
+     * Behavior configuration -
+     * 
+     * <pre>
+     * parameter: treatMapsLikeBeans - true (validate maps like beans, so that
+     *                             you can use Maps to validate dynamic classes or
+     *                             beans for which you have the MetaBean but no instances)
+     *                           - false (default), validate maps like collections
+     *                             (validating the values only)
+     * </pre>
+     * 
+     * (is still configuration to better in BeanValidationContext?)
+     */
+    public boolean isTreatMapsLikeBeans() {
+        return treatMapsLikeBeans;
+    }
+
+    public void setTreatMapsLikeBeans(boolean treatMapsLikeBeans) {
+        this.treatMapsLikeBeans = treatMapsLikeBeans;
+    }
+
+    /**
+     * Checks that beanType is valid according to spec Section 4.1.1 i. Throws
+     * an {@link IllegalArgumentException} if it is not.
+     * 
+     * @param beanType
+     *            Bean type to check.
+     */
+    private void checkBeanType(Class<?> beanType) {
+        if (beanType == null) {
+            throw new IllegalArgumentException("Bean type cannot be null.");
+        }
+    }
+
+    /**
+     * Checks that the property name is valid according to spec Section 4.1.1 i.
+     * Throws an {@link IllegalArgumentException} if it is not.
+     * 
+     * @param propertyName
+     *            Property name to check.
+     */
+    private void checkPropertyName(String propertyName) {
+        if (propertyName == null || propertyName.trim().length() == 0) {
+            throw new IllegalArgumentException(
+                "Property path cannot be null or empty.");
+        }
+    }
+
+    /**
+     * Checks that the groups array is valid according to spec Section 4.1.1 i.
+     * Throws an {@link IllegalArgumentException} if it is not.
+     * 
+     * @param groups
+     *            The groups to check.
+     */
+    private void checkGroups(Class<?>[] groups) {
+        if (groups == null) {
+            throw new IllegalArgumentException("Groups cannot be null.");
+        }
+    }
+
+    /**
+     * Dispatches a call from {@link #validate()} to
+     * {@link ClassValidator#validateBeanNet(GroupValidationContext)} with the
+     * current context set.
+     */
+    protected class Jsr303ValidationCallback implements
+        ValidationHelper.ValidateCallback {
+
+        private final GroupValidationContext<?> context;
+
+        public Jsr303ValidationCallback(GroupValidationContext<?> context) {
+            this.context = context;
+        }
+
+        public void validate() {
+            validateBeanNet(context);
+        }
+
     }
 
-  }
-  
 }