tomee-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From rmannibu...@apache.org
Subject tomee git commit: TOMEE-1855 limiting jsp/tag leaks
Date Fri, 01 Jul 2016 16:42:25 GMT
Repository: tomee
Updated Branches:
  refs/heads/master a37132fee -> dc2b7374e


TOMEE-1855 limiting jsp/tag leaks


Project: http://git-wip-us.apache.org/repos/asf/tomee/repo
Commit: http://git-wip-us.apache.org/repos/asf/tomee/commit/dc2b7374
Tree: http://git-wip-us.apache.org/repos/asf/tomee/tree/dc2b7374
Diff: http://git-wip-us.apache.org/repos/asf/tomee/diff/dc2b7374

Branch: refs/heads/master
Commit: dc2b7374e50190c29f1235ecd0ec0925de24768b
Parents: a37132f
Author: Romain manni-Bucau <rmannibucau@gmail.com>
Authored: Fri Jul 1 18:42:01 2016 +0200
Committer: Romain manni-Bucau <rmannibucau@gmail.com>
Committed: Fri Jul 1 18:42:01 2016 +0200

----------------------------------------------------------------------
 .../staticresources/AvoidConflictTest.java      |   2 +
 .../org/apache/openejb/core/WebContext.java     |  45 +++++---
 .../server/httpd/BeginWebBeansListener.java     |   5 +
 .../tomee/catalina/JavaeeInstanceManager.java   | 102 +++++++++++--------
 .../apache/tomee/embedded/FailingJspTest.java   |  76 ++++++++++++++
 .../test/resources/META-INF/resources/fail.jsp  |  30 ++++++
 6 files changed, 207 insertions(+), 53 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/arquillian/arquillian-tomee-tests/arquillian-tomee-jaxrs-tests/src/test/java/org/apache/openejb/arquillian/tests/jaxrs/staticresources/AvoidConflictTest.java
----------------------------------------------------------------------
diff --git a/arquillian/arquillian-tomee-tests/arquillian-tomee-jaxrs-tests/src/test/java/org/apache/openejb/arquillian/tests/jaxrs/staticresources/AvoidConflictTest.java
b/arquillian/arquillian-tomee-tests/arquillian-tomee-jaxrs-tests/src/test/java/org/apache/openejb/arquillian/tests/jaxrs/staticresources/AvoidConflictTest.java
index 111bf6b..0c93110 100644
--- a/arquillian/arquillian-tomee-tests/arquillian-tomee-jaxrs-tests/src/test/java/org/apache/openejb/arquillian/tests/jaxrs/staticresources/AvoidConflictTest.java
+++ b/arquillian/arquillian-tomee-tests/arquillian-tomee-jaxrs-tests/src/test/java/org/apache/openejb/arquillian/tests/jaxrs/staticresources/AvoidConflictTest.java
@@ -22,6 +22,7 @@ import org.jboss.arquillian.junit.Arquillian;
 import org.jboss.arquillian.test.api.ArquillianResource;
 import org.jboss.shrinkwrap.api.Archive;
 import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.asset.EmptyAsset;
 import org.jboss.shrinkwrap.api.asset.StringAsset;
 import org.jboss.shrinkwrap.api.spec.WebArchive;
 import org.junit.Test;
@@ -38,6 +39,7 @@ public class AvoidConflictTest {
     public static Archive<?> war() {
         return ShrinkWrap.create(WebArchive.class, "AvoidConflictTest.war")
                     .addClasses(TheResource.class, SimpleServlet.class, PreviousFilter.class)
+                    .addAsWebInfResource(EmptyAsset.INSTANCE, "beans.xml")
                     .addAsWebResource(new StringAsset("static"), "index.html")
                     .addAsWebResource(new StringAsset("JSP <%= 5 %>"), "sample.jsp");
     }

http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/container/openejb-core/src/main/java/org/apache/openejb/core/WebContext.java
----------------------------------------------------------------------
diff --git a/container/openejb-core/src/main/java/org/apache/openejb/core/WebContext.java
b/container/openejb-core/src/main/java/org/apache/openejb/core/WebContext.java
index 073be91..0e090c0 100644
--- a/container/openejb-core/src/main/java/org/apache/openejb/core/WebContext.java
+++ b/container/openejb-core/src/main/java/org/apache/openejb/core/WebContext.java
@@ -22,6 +22,8 @@ import org.apache.openejb.Injection;
 import org.apache.openejb.InjectionProcessor;
 import org.apache.openejb.OpenEJBException;
 import org.apache.openejb.cdi.ConstructorInjectionBean;
+import org.apache.openejb.util.LogCategory;
+import org.apache.openejb.util.Logger;
 import org.apache.webbeans.component.InjectionTargetBean;
 import org.apache.webbeans.config.WebBeansContext;
 
@@ -44,6 +46,7 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 
 public class WebContext {
     private String id;
@@ -52,7 +55,7 @@ public class WebContext {
     private Context jndiEnc;
     private final AppContext appContext;
     private Map<String, Object> bindings;
-    private final Map<Object, CreationalContext<?>> creationalContexts = new
ConcurrentHashMap<>();
+    private final ConcurrentMap<Object, CreationalContext<?>> creationalContexts
= new ConcurrentHashMap<>();
     private WebBeansContext webbeansContext;
     private String contextRoot;
     private String host;
@@ -149,24 +152,28 @@ public class WebContext {
         final Context unwrap = InjectionProcessor.unwrap(getInitialContext());
         final InjectionProcessor injectionProcessor = new InjectionProcessor(o, injections,
unwrap);
 
-        final Object beanInstance = injectionProcessor.createInstance();
+        final Object beanInstance;
+        try {
+            beanInstance = injectionProcessor.createInstance();
 
-        if (webBeansContext != null) {
-            final InjectionTargetBean<Object> bean = InjectionTargetBean.class.cast(beanDefinition);
-            bean.getInjectionTarget().inject(beanInstance, creationalContext);
-            if (shouldBeReleased(bean.getScope())) {
-                creationalContexts.put(beanInstance, creationalContext);
+            if (webBeansContext != null) {
+                final InjectionTargetBean<Object> bean = InjectionTargetBean.class.cast(beanDefinition);
+                bean.getInjectionTarget().inject(beanInstance, creationalContext);
+                if (shouldBeReleased(bean.getScope())) {
+                    creationalContexts.put(beanInstance, creationalContext);
+                }
+            }
+        } catch (final OpenEJBException oejbe) {
+            if (creationalContext != null) {
+                creationalContext.release();
             }
+            throw oejbe;
         }
         return new Instance(beanInstance, creationalContext);
     }
 
     public Object newInstance(final Class beanClass) throws OpenEJBException {
-        final Instance instance = newWeakableInstance(beanClass);
-        if (instance.getCreationalContext() != null) {
-            creationalContexts.put(instance.getValue(), instance.getCreationalContext());
-        }
-        return instance.getValue();
+        return newWeakableInstance(beanClass).getValue();
     }
 
     private ConstructorInjectionBean<Object> getConstructorInjectionBean(final Class
beanClass, final WebBeansContext webBeansContext) {
@@ -237,7 +244,7 @@ public class WebContext {
             }
 
             return beanInstance;
-        } catch (final NamingException e) {
+        } catch (final NamingException | OpenEJBException e) {
             throw new OpenEJBException(e);
         }
     }
@@ -277,6 +284,18 @@ public class WebContext {
         }
     }
 
+    public void release() {
+        for (final CreationalContext<?> cc : creationalContexts.values()) {
+            try {
+                cc.release();
+            } catch (final RuntimeException re) {
+                Logger.getInstance(LogCategory.OPENEJB, WebContext.class.getName())
+                        .warning("Can't release properly a creational context", re);
+            }
+        }
+        creationalContexts.clear();
+    }
+
     public static class Instance {
         private final Object value;
         private final CreationalContext<?> cc;

http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/server/openejb-http/src/main/java/org/apache/openejb/server/httpd/BeginWebBeansListener.java
----------------------------------------------------------------------
diff --git a/server/openejb-http/src/main/java/org/apache/openejb/server/httpd/BeginWebBeansListener.java
b/server/openejb-http/src/main/java/org/apache/openejb/server/httpd/BeginWebBeansListener.java
index ad73556..262e793 100644
--- a/server/openejb-http/src/main/java/org/apache/openejb/server/httpd/BeginWebBeansListener.java
+++ b/server/openejb-http/src/main/java/org/apache/openejb/server/httpd/BeginWebBeansListener.java
@@ -20,6 +20,7 @@ import org.apache.openejb.cdi.CdiAppContextsService;
 import org.apache.openejb.cdi.OpenEJBLifecycle;
 import org.apache.openejb.cdi.ThreadSingletonServiceImpl;
 import org.apache.openejb.cdi.WebappWebBeansContext;
+import org.apache.openejb.core.WebContext;
 import org.apache.openejb.util.LogCategory;
 import org.apache.openejb.util.Logger;
 import org.apache.webbeans.config.OWBLogConst;
@@ -193,6 +194,10 @@ public class BeginWebBeansListener implements ServletContextListener,
ServletReq
     @Override
     public void contextDestroyed(final ServletContextEvent servletContextEvent) {
         WebBeansListenerHelper.destroyFakedRequest(this);
+        final WebContext wc = WebContext.class.cast(servletContextEvent.getServletContext().getAttribute("openejb.web.context"));
+        if (wc != null) {
+            wc.release();
+        }
     }
 
 }

http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/JavaeeInstanceManager.java
----------------------------------------------------------------------
diff --git a/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/JavaeeInstanceManager.java
b/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/JavaeeInstanceManager.java
index d51934f..8df120d 100644
--- a/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/JavaeeInstanceManager.java
+++ b/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/JavaeeInstanceManager.java
@@ -46,11 +46,16 @@ import java.util.Map;
 public class JavaeeInstanceManager implements InstanceManager {
     private final WebContext webContext;
     private final StandardContext webapp;
+    private final String[] skipContainerTags;
+    private final String[] skipPrefixes;
     private volatile InstanceManager defaultInstanceManager;
 
     public JavaeeInstanceManager(final StandardContext webapp, final WebContext webContext)
{
         this.webContext = webContext;
         this.webapp = webapp;
+        this.skipContainerTags = SystemInstance.get().getProperty(
+                "tomee.tomcat.instance-manager.skip-container-tags", "org.apache.taglibs.standard.,javax.servlet.jsp.jstl.").split("
*, *");
+        this.skipPrefixes = SystemInstance.get().getProperty("tomee.tomcat.instance-manager.skip-cdi",
"").split(" *, *");
     }
 
     public ServletContext getServletContext() {
@@ -69,18 +74,9 @@ public class JavaeeInstanceManager implements InstanceManager {
                 return clazz.newInstance();
             }
 
-            final Object object = webContext.newInstance(clazz);
+            final Object object = isSkip(name, skipPrefixes) ? clazz.newInstance() : webContext.newInstance(clazz);
             if (isJsp(object.getClass())) {
-                if (defaultInstanceManager == null) { // lazy cause can not be needed
-                    synchronized (this) {
-                        if (defaultInstanceManager == null) {
-                            defaultInstanceManager = new DefaultInstanceManager(
-                                    webapp.getNamingContextListener().getEnvContext(),
-                                    TomcatInjections.buildInjectionMap(webapp.getNamingResources()),
webapp,
-                                    ParentClassLoaderFinder.Helper.get());
-                        }
-                    }
-                }
+                initDefaultInstanceMgr();
                 defaultInstanceManager.newInstance(object);
             } else {
                 postConstruct(object, clazz);
@@ -91,6 +87,19 @@ public class JavaeeInstanceManager implements InstanceManager {
         }
     }
 
+    private void initDefaultInstanceMgr() {
+        if (defaultInstanceManager == null) { // lazy cause can not be needed
+            synchronized (this) {
+                if (defaultInstanceManager == null) {
+                    defaultInstanceManager = new DefaultInstanceManager(
+                            webapp.getNamingContextListener().getEnvContext(),
+                            TomcatInjections.buildInjectionMap(webapp.getNamingResources()),
webapp,
+                            ParentClassLoaderFinder.Helper.get());
+                }
+            }
+        }
+    }
+
     private boolean isJsp(final Class<?> type) {
         return type.getSuperclass().getName().equals("org.apache.jasper.runtime.HttpJspBase");
     }
@@ -107,8 +116,7 @@ public class JavaeeInstanceManager implements InstanceManager {
 
     @Override
     public Object newInstance(final String className) throws IllegalAccessException, InvocationTargetException,
NamingException, InstantiationException, ClassNotFoundException {
-        final ClassLoader classLoader = webContext.getClassLoader();
-        return newInstance(className, classLoader);
+        return newInstance(className, webContext.getClassLoader());
     }
 
     @Override
@@ -120,17 +128,30 @@ public class JavaeeInstanceManager implements InstanceManager {
     public void newInstance(final Object o) throws IllegalAccessException, InvocationTargetException,
NamingException {
         final String name = o.getClass().getName();
         if ("org.apache.tomee.webservices.CXFJAXRSFilter".equals(name)
-            || "org.apache.tomcat.websocket.server.WsFilter".equals(name)) {
+                || "org.apache.tomcat.websocket.server.WsFilter".equals(name)
+                || isSkip(name, skipContainerTags)) {
             return;
         }
         try {
-            webContext.inject(o);
+            if (isSkip(name, skipPrefixes)) {
+                webContext.inject(o);
+            }
             postConstruct(o, o.getClass());
         } catch (final OpenEJBException e) {
+            destroyInstance(o);
             throw new InjectionFailedException(e);
         }
     }
 
+    private boolean isSkip(final String name, final String[] prefixes) {
+        for (final String prefix : prefixes) {
+            if (name.startsWith(prefix)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     @Override
     public void destroyInstance(final Object o) throws IllegalAccessException, InvocationTargetException
{
         if (o == null) {
@@ -146,20 +167,23 @@ public class JavaeeInstanceManager implements InstanceManager {
         }
 
         final Object unwrapped = unwrap(o);
-        if (isJsp(o.getClass())) {
-            defaultInstanceManager.destroyInstance(o);
-        } else {
-            preDestroy(unwrapped, unwrapped.getClass());
-        }
-        webContext.destroy(unwrapped);
-        if (unwrapped != o) { // PojoEndpointServer, they create and track a cc so release
it
-            webContext.destroy(o);
+        try {
+            if (isJsp(o.getClass())) {
+                defaultInstanceManager.destroyInstance(o);
+            } else {
+                preDestroy(unwrapped, unwrapped.getClass());
+            }
+        } finally {
+            webContext.destroy(unwrapped);
+            if (unwrapped != o) { // PojoEndpointServer, they create and track a cc so release
it
+                webContext.destroy(o);
+            }
         }
     }
 
     private Object unwrap(final Object o) {
         return "org.apache.tomcat.websocket.pojo.PojoEndpointServer".equals(o.getClass().getName())
?
-            WebSocketTypes.unwrapWebSocketPojo(o) : o;
+                WebSocketTypes.unwrapWebSocketPojo(o) : o;
     }
 
     public void inject(final Object o) {
@@ -175,9 +199,8 @@ public class JavaeeInstanceManager implements InstanceManager {
      *
      * @param instance object to call postconstruct methods on
      * @param clazz    (super) class to examine for postConstruct annotation.
-     * @throws IllegalAccessException if postConstruct method is inaccessible.
-     * @throws java.lang.reflect.InvocationTargetException
-     *                                if call fails
+     * @throws IllegalAccessException                      if postConstruct method is inaccessible.
+     * @throws java.lang.reflect.InvocationTargetException if call fails
      */
     public void postConstruct(final Object instance, final Class<?> clazz)
             throws IllegalAccessException, InvocationTargetException {
@@ -224,9 +247,8 @@ public class JavaeeInstanceManager implements InstanceManager {
      *
      * @param instance object to call preDestroy methods on
      * @param clazz    (super) class to examine for preDestroy annotation.
-     * @throws IllegalAccessException if preDestroy method is inaccessible.
-     * @throws java.lang.reflect.InvocationTargetException
-     *                                if call fails
+     * @throws IllegalAccessException                      if preDestroy method is inaccessible.
+     * @throws java.lang.reflect.InvocationTargetException if call fails
      */
     protected void preDestroy(final Object instance, final Class<?> clazz)
             throws IllegalAccessException, InvocationTargetException {
@@ -268,8 +290,8 @@ public class JavaeeInstanceManager implements InstanceManager {
             Method tmp;
             try {
                 tmp = WebSocketTypes.class.getClassLoader()
-                    .loadClass("org.apache.tomcat.websocket.pojo.PojoEndpointBase")
-                    .getDeclaredMethod("getPojo");
+                        .loadClass("org.apache.tomcat.websocket.pojo.PojoEndpointBase")
+                        .getDeclaredMethod("getPojo");
                 tmp.setAccessible(true);
             } catch (final NoSuchMethodException e) {
                 if ("true".equals(SystemInstance.get().getProperty("tomee.websocket.skip",
"false"))) {
@@ -299,25 +321,25 @@ public class JavaeeInstanceManager implements InstanceManager {
 
         private static Map<String, Map<String, String>> buildInjectionMap(final
NamingResourcesImpl namingResources) {
             final Map<String, Map<String, String>> injectionMap = new HashMap<>();
-            for (final Injectable resource: namingResources.findLocalEjbs()) {
+            for (final Injectable resource : namingResources.findLocalEjbs()) {
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findEjbs()) {
+            for (final Injectable resource : namingResources.findEjbs()) {
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findEnvironments()) {
+            for (final Injectable resource : namingResources.findEnvironments()) {
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findMessageDestinationRefs())
{
+            for (final Injectable resource : namingResources.findMessageDestinationRefs())
{
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findResourceEnvRefs()) {
+            for (final Injectable resource : namingResources.findResourceEnvRefs()) {
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findResources()) {
+            for (final Injectable resource : namingResources.findResources()) {
                 addInjectionTarget(resource, injectionMap);
             }
-            for (final Injectable resource: namingResources.findServices()) {
+            for (final Injectable resource : namingResources.findServices()) {
                 addInjectionTarget(resource, injectionMap);
             }
             return injectionMap;
@@ -327,7 +349,7 @@ public class JavaeeInstanceManager implements InstanceManager {
             final List<InjectionTarget> injectionTargets = resource.getInjectionTargets();
             if (injectionTargets != null && !injectionTargets.isEmpty()) {
                 final String jndiName = resource.getName();
-                for (final InjectionTarget injectionTarget: injectionTargets) {
+                for (final InjectionTarget injectionTarget : injectionTargets) {
                     final String clazz = injectionTarget.getTargetClass();
                     Map<String, String> injections = injectionMap.get(clazz);
                     if (injections == null) {

http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/tomee/tomee-embedded/src/test/java/org/apache/tomee/embedded/FailingJspTest.java
----------------------------------------------------------------------
diff --git a/tomee/tomee-embedded/src/test/java/org/apache/tomee/embedded/FailingJspTest.java
b/tomee/tomee-embedded/src/test/java/org/apache/tomee/embedded/FailingJspTest.java
new file mode 100644
index 0000000..94cf0e9
--- /dev/null
+++ b/tomee/tomee-embedded/src/test/java/org/apache/tomee/embedded/FailingJspTest.java
@@ -0,0 +1,76 @@
+/**
+ * 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.tomee.embedded;
+
+import org.apache.openejb.core.WebContext;
+import org.apache.openejb.loader.IO;
+import org.apache.openejb.loader.JarLocation;
+import org.apache.openejb.loader.SystemInstance;
+import org.apache.openejb.spi.ContainerSystem;
+import org.apache.openejb.util.NetworkUtil;
+import org.apache.openejb.util.reflection.Reflections;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Map;
+
+import static org.junit.Assert.assertEquals;
+
+public class FailingJspTest {
+    @Test
+    public void run() throws MalformedURLException { // this test passes just cause we skip
container tags
+        final Collection<Object> tracked1;
+        final WebContext ctx;
+        try (final Container container = new Container(
+                    new Configuration()
+                            .http(NetworkUtil.getNextAvailablePort())
+                            .property("openejb.container.additional.exclude", "org.apache.tomee.embedded.")
+                            .property("openejb.additional.include", "tomee-")
+                            .user("tomee", "tomeepwd")
+                            .loginConfig(new LoginConfigBuilder().basic())
+                            .securityConstaint(new SecurityConstaintBuilder().addAuthRole("**").authConstraint(true).addCollection("api",
"/api/resource2/")))
+                .deployPathsAsWebapp(JarLocation.jarLocation(FailingJspTest.class))
+                .inject(this)) {
+
+            ctx = SystemInstance.get().getComponent(ContainerSystem.class).getWebContextByHost("",
"localhost");
+
+            tracked1 = getTrackedContexts(ctx);
+
+            for (int i = 0; i < 5; i++) {
+                try {
+                    IO.slurp(new URL("http://localhost:" + container.getConfiguration().getHttpPort()
+ "/fail.jsp"));
+                } catch (final IOException e) {
+                    // no-op
+                }
+            }
+
+            final Collection<Object> tracked2 = getTrackedContexts(ctx);
+
+            // bug in org.apache.jasper.servlet.JspServletWrapper.destroy()
+            tracked2.removeAll(tracked1);
+            assertEquals(String.valueOf(tracked2), 0, tracked2.size());
+        }
+    }
+
+    private Collection<Object> getTrackedContexts(final WebContext ctx) {
+        return new ArrayList<>(Map.class.cast(Reflections.get(ctx, "creationalContexts")).keySet());
+    }
+}

http://git-wip-us.apache.org/repos/asf/tomee/blob/dc2b7374/tomee/tomee-embedded/src/test/resources/META-INF/resources/fail.jsp
----------------------------------------------------------------------
diff --git a/tomee/tomee-embedded/src/test/resources/META-INF/resources/fail.jsp b/tomee/tomee-embedded/src/test/resources/META-INF/resources/fail.jsp
new file mode 100644
index 0000000..6d1fc59
--- /dev/null
+++ b/tomee/tomee-embedded/src/test/resources/META-INF/resources/fail.jsp
@@ -0,0 +1,30 @@
+<%
+ /*
+  * 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.
+  */
+%>
+<%@ page session="false" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%!
+public void jspDestroy() {
+    //throw new RuntimeException("bouh");
+}
+%>
+
+
+
+<c:out value="${'<tag> , &'}"/>


Mime
View raw message