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Posted to commits@myfaces.apache.org by mk...@apache.org on 2011/11/28 23:28:02 UTC

svn commit: r1207660 - in /myfaces/core/trunk/impl/src: main/java/org/apache/myfaces/renderkit/ test/java/org/apache/myfaces/renderkit/

Author: mkienenb
Date: Mon Nov 28 22:28:01 2011
New Revision: 1207660

URL: http://svn.apache.org/viewvc?rev=1207660&view=rev
Log:
MYFACES-3413: Default MyFaces Error handling throws NullPointerException during component tree when javax.el.Expression.getExpressionString() is null

Added:
    myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/ErrorPageWriterTest.java
    myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/NullReturningGetExpressionStringValueExpression.java
Modified:
    myfaces/core/trunk/impl/src/main/java/org/apache/myfaces/renderkit/ErrorPageWriter.java

Modified: myfaces/core/trunk/impl/src/main/java/org/apache/myfaces/renderkit/ErrorPageWriter.java
URL: http://svn.apache.org/viewvc/myfaces/core/trunk/impl/src/main/java/org/apache/myfaces/renderkit/ErrorPageWriter.java?rev=1207660&r1=1207659&r2=1207660&view=diff
==============================================================================
--- myfaces/core/trunk/impl/src/main/java/org/apache/myfaces/renderkit/ErrorPageWriter.java (original)
+++ myfaces/core/trunk/impl/src/main/java/org/apache/myfaces/renderkit/ErrorPageWriter.java Mon Nov 28 22:28:01 2011
@@ -1259,7 +1259,12 @@ public final class ErrorPageWriter
                         valueExpression = c.getValueExpression(pd[i].getName());
                         if (valueExpressionValues && valueExpression != null)
                         {
-                            _writeAttribute(writer, pd[i].getName(), valueExpression.getExpressionString());
+                            String expressionString = valueExpression.getExpressionString();
+                            if (null == expressionString)
+                            {
+                                expressionString = "";
+                            }
+                            _writeAttribute(writer, pd[i].getName(), expressionString);
                         }
                         else
                         {

Added: myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/ErrorPageWriterTest.java
URL: http://svn.apache.org/viewvc/myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/ErrorPageWriterTest.java?rev=1207660&view=auto
==============================================================================
--- myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/ErrorPageWriterTest.java (added)
+++ myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/ErrorPageWriterTest.java Mon Nov 28 22:28:01 2011
@@ -0,0 +1,119 @@
+/*
+ * 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.myfaces.renderkit;
+
+import java.io.StringWriter;
+
+import javax.el.ValueExpression;
+import javax.faces.component.UIViewRoot;
+import javax.faces.component.html.HtmlOutputText;
+import javax.validation.constraints.AssertTrue;
+
+import junit.framework.Test;
+import junit.framework.TestSuite;
+
+import org.apache.myfaces.renderkit.html.HtmlTextRenderer;
+import org.apache.myfaces.shared.util.StateUtils;
+import org.apache.myfaces.shared_impl.util.serial.DefaultSerialFactory;
+import org.apache.myfaces.test.base.AbstractJsfTestCase;
+import org.apache.myfaces.test.mock.MockRenderKitFactory;
+import org.apache.myfaces.test.mock.MockResponseWriter;
+
+/**
+ * @author Bruno Aranda (latest modification by $Author: struberg $)
+ * @version $Revision: 1188235 $ $Date: 2011-10-24 13:09:33 -0400 (Mon, 24 Oct 2011) $
+ */
+public class ErrorPageWriterTest extends AbstractJsfTestCase
+{
+    public static Test suite()
+    {
+        return new TestSuite(ErrorPageWriterTest.class); // needed in maven
+    }
+
+    private MockResponseWriter writer ;
+    private HtmlOutputText outputText;
+
+    public ErrorPageWriterTest(String name)
+    {
+        super(name);
+    }
+
+    public void setUp() throws Exception
+    {
+        super.setUp();
+
+        outputText = new HtmlOutputText();
+
+        writer = new MockResponseWriter(new StringWriter(), null, null);
+        facesContext.setResponseWriter(writer);
+        // TODO remove these two lines once myfaces-test goes alpha, see MYFACES-1155
+        facesContext.getViewRoot().setRenderKitId(MockRenderKitFactory.HTML_BASIC_RENDER_KIT);
+        facesContext.getRenderKit().addRenderer(
+                outputText.getFamily(),
+                outputText.getRendererType(),
+                new HtmlTextRenderer());
+        servletContext.setAttribute(StateUtils.SERIAL_FACTORY, new DefaultSerialFactory());
+
+        facesContext.getAttributes().put("org.apache.myfaces.RENDERED_JSF_JS", Boolean.TRUE);
+    }
+
+    public void tearDown() throws Exception
+    {
+        super.tearDown();
+        outputText = null;
+        writer = null;
+    }
+
+    public void testValueExpressionGetExpressionStringReturnsNull()
+    {
+        //See MYFACES-3413 for details
+        UIViewRoot root = facesContext.getViewRoot();
+//        UIForm form = new UIForm();
+//        form.setId("formId");
+//        
+//        form.getChildren().add(inputText);
+        root.getChildren().add(outputText);
+
+        ValueExpression ve = new NullReturningGetExpressionStringValueExpression();
+        
+        outputText.setValueExpression("rendered", ve);
+        String id = "testValueExpressionGetExpressionStringReturnsNullOutputComponent";
+        outputText.setId(id);
+        try 
+        {
+            StringWriter w = new StringWriter();
+            Throwable t = new Throwable("Placeholder throwable");
+            ErrorPageWriter.debugHtml(w, facesContext, t);
+            String output = w.toString();
+            int indexOfOutputComponentId = output.indexOf(id);
+            String surroundingText = "output component not found.";
+            if (-1 != indexOfOutputComponentId) {
+                surroundingText = output.substring(Math.max(0, indexOfOutputComponentId - 20), Math.min(output.length(), indexOfOutputComponentId + 280));
+            }
+            int indexOfHasRenderedAttribute = output.indexOf("rendered=\"\"");
+            boolean hasRenderedAttribute = (-1 != indexOfHasRenderedAttribute);
+            assertTrue("rendered attribute wasn't written correctly: " + surroundingText, hasRenderedAttribute);
+        }
+        catch (Exception e)
+        {
+            fail(e.getMessage());
+        }
+    }
+    
+}

Added: myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/NullReturningGetExpressionStringValueExpression.java
URL: http://svn.apache.org/viewvc/myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/NullReturningGetExpressionStringValueExpression.java?rev=1207660&view=auto
==============================================================================
--- myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/NullReturningGetExpressionStringValueExpression.java (added)
+++ myfaces/core/trunk/impl/src/test/java/org/apache/myfaces/renderkit/NullReturningGetExpressionStringValueExpression.java Mon Nov 28 22:28:01 2011
@@ -0,0 +1,88 @@
+/*
+ * 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.myfaces.renderkit;
+import java.io.Serializable;
+
+import javax.el.ELContext;
+import javax.el.ELException;
+import javax.el.PropertyNotFoundException;
+import javax.el.PropertyNotWritableException;
+import javax.el.ValueExpression;
+
+public class NullReturningGetExpressionStringValueExpression extends ValueExpression implements Serializable {
+        private static final long serialVersionUID = 1L;
+
+        @Override
+        public String getExpressionString() {
+            return null;
+        }
+
+        @Override
+        public boolean isReadOnly(ELContext arg0) {
+            return true;
+        }
+
+        @Override
+        public Class<?> getExpectedType() {
+            // TODO Auto-generated method stub
+            return null;
+        }
+
+        @Override
+        public Class<?> getType(ELContext arg0)
+                throws NullPointerException, PropertyNotFoundException,
+                ELException {
+            // TODO Auto-generated method stub
+            return null;
+        }
+
+        @Override
+        public Object getValue(ELContext arg0) throws NullPointerException,
+                PropertyNotFoundException, ELException {
+            // TODO Auto-generated method stub
+            return null;
+        }
+
+        @Override
+        public void setValue(ELContext arg0, Object arg1)
+                throws NullPointerException, PropertyNotFoundException,
+                PropertyNotWritableException, ELException {
+            // TODO Auto-generated method stub
+            
+        }
+
+        @Override
+        public boolean equals(Object arg0) {
+            // TODO Auto-generated method stub
+            return false;
+        }
+
+        @Override
+        public int hashCode() {
+            // TODO Auto-generated method stub
+            return 0;
+        }
+
+        @Override
+        public boolean isLiteralText() {
+            // TODO Auto-generated method stub
+            return false;
+        }
+    }
+