### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/core/IMethod.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/core/IMethod.java,v
retrieving revision 1.33
diff -u -r1.33 IMethod.java
--- model/org/eclipse/jdt/core/IMethod.java	23 Apr 2010 13:11:05 -0000	1.33
+++ model/org/eclipse/jdt/core/IMethod.java	9 Feb 2011 16:28:53 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2010 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -100,6 +100,16 @@
  * @return the number of parameters of this method
  */
 int getNumberOfParameters();
+
+/**
+ * Returns the array of annotations for the parameter at the given index.
+ * 
+ * @param index the index or order of the method parameter.
+ * @return the array of annotations for the specified parameter
+ * @throws JavaModelException
+ * @since 3.7
+ */
+IAnnotation[] getParameterAnnotations(int index) throws JavaModelException;
 /**
  * Returns the binding key for this method only if the given method is {@link #isResolved() resolved}.
  * A binding key is a key that uniquely identifies this method. It allows access
Index: model/org/eclipse/jdt/internal/core/BinaryMethod.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/BinaryMethod.java,v
retrieving revision 1.111
diff -u -r1.111 BinaryMethod.java
--- model/org/eclipse/jdt/internal/core/BinaryMethod.java	20 Jan 2011 02:28:43 -0000	1.111
+++ model/org/eclipse/jdt/internal/core/BinaryMethod.java	9 Feb 2011 16:28:53 -0000
@@ -61,6 +61,15 @@
 	IBinaryAnnotation[] binaryAnnotations = info.getAnnotations();
 	return getAnnotations(binaryAnnotations, info.getTagBits());
 }
+/**
+ * @see IMethod#getParameterAnnotations(int)
+ */
+public IAnnotation[] getParameterAnnotations(int index) throws JavaModelException {
+	IBinaryMethod info = (IBinaryMethod) getElementInfo();
+	IBinaryAnnotation[] binaryAnnotations = info.getParameterAnnotations(index);
+	return getAnnotations(binaryAnnotations, info.getTagBits());
+}
+
 public IMemberValuePair getDefaultValue() throws JavaModelException {
 	IBinaryMethod info = (IBinaryMethod) getElementInfo();
 	Object defaultValue = info.getDefaultValue();
Index: model/org/eclipse/jdt/internal/core/CompilationUnitStructureRequestor.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/CompilationUnitStructureRequestor.java,v
retrieving revision 1.87
diff -u -r1.87 CompilationUnitStructureRequestor.java
--- model/org/eclipse/jdt/internal/core/CompilationUnitStructureRequestor.java	28 Jul 2010 16:17:01 -0000	1.87
+++ model/org/eclipse/jdt/internal/core/CompilationUnitStructureRequestor.java	9 Feb 2011 16:28:53 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2010 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -22,6 +22,7 @@
 import org.eclipse.jdt.core.compiler.CharOperation;
 import org.eclipse.jdt.core.compiler.IProblem;
 import org.eclipse.jdt.internal.compiler.ISourceElementRequestor;
+import org.eclipse.jdt.internal.compiler.ast.Argument;
 import org.eclipse.jdt.internal.compiler.ast.ArrayInitializer;
 import org.eclipse.jdt.internal.compiler.ast.ClassLiteralAccess;
 import org.eclipse.jdt.internal.compiler.ast.Expression;
@@ -427,8 +428,44 @@
 			acceptAnnotation(annotation, info, handle);
 		}
 	}
+	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=334783
+	// Process the parameter annotations from the arguments
+	if (methodInfo.node != null && methodInfo.node.arguments != null) {
+		info.paramAnnotations = acceptParamAnnotations(methodInfo.node.arguments, handle, methodInfo);
+	}
 	return info;
 }
+private Annotation[][] acceptParamAnnotations(Argument[] arguments, JavaElement methodHandle, MethodInfo methodInfo) {
+	Annotation[][] paramAnnotations = new Annotation[methodInfo.node.arguments.length][];
+	
+	for(int i = 0; i < methodInfo.node.arguments.length; i++) {
+		Argument argument = methodInfo.node.arguments[i];
+		if (methodInfo.node.arguments[i].annotations != null) {
+			paramAnnotations[i] = new Annotation[argument.annotations.length];
+			for (int  j = 0; j < argument.annotations.length; j++ ) {
+				org.eclipse.jdt.internal.compiler.ast.Annotation annotation = argument.annotations[j];
+				
+				String nameString = new String(CharOperation.concatWith(annotation.type.getTypeName(), '.'));
+				LocalVariable localVar = null;
+				String paramTypeSig = JavaModelManager.getJavaModelManager().intern(Signature.createTypeSignature(methodInfo.parameterTypes[i], false));
+				// Create a ILocalVariable on the fly with already given information as this is a pseudo-element anyway.
+				localVar = new LocalVariable(
+						methodHandle,
+						new String(argument.name),
+						argument.declarationSourceStart,
+						argument. declarationSourceEnd,
+						argument.sourceStart,
+						argument.sourceEnd,
+						paramTypeSig,
+						argument.annotations,
+						argument.modifiers, 
+						true);
+				paramAnnotations[i][j] = createAnnotation(localVar, nameString); 
+			}
+		}
+	}
+	return paramAnnotations;
+}
 /**
  * @see ISourceElementRequestor
  */
Index: model/org/eclipse/jdt/internal/core/SourceMethod.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/SourceMethod.java,v
retrieving revision 1.68
diff -u -r1.68 SourceMethod.java
--- model/org/eclipse/jdt/internal/core/SourceMethod.java	27 Jun 2008 16:03:51 -0000	1.68
+++ model/org/eclipse/jdt/internal/core/SourceMethod.java	9 Feb 2011 16:28:53 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -316,4 +316,12 @@
 		buffer.append(this.occurrenceCount);
 	}
 }
+/**
+ * @see IMethod#getParameterAnnotations(int)
+ */
+public IAnnotation[] getParameterAnnotations(int index) throws JavaModelException {
+	Object object = getElementInfo();
+	IAnnotation[] paramAnnots = ((SourceMethodInfo) object).getParamAnnotations(index);
+	return paramAnnots;
+}
 }
Index: model/org/eclipse/jdt/internal/core/SourceMethodElementInfo.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/SourceMethodElementInfo.java,v
retrieving revision 1.22
diff -u -r1.22 SourceMethodElementInfo.java
--- model/org/eclipse/jdt/internal/core/SourceMethodElementInfo.java	27 Jun 2008 16:03:50 -0000	1.22
+++ model/org/eclipse/jdt/internal/core/SourceMethodElementInfo.java	9 Feb 2011 16:28:53 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -38,7 +38,15 @@
 	 * For example, Hashtable or java.util.Hashtable.
 	 */
 	protected char[][] exceptionTypes;
+	
+	/**
+	 * Array of annotations if any associated with the parameters of this method.
+	 */
+	protected Annotation[][] paramAnnotations;
 
+	public IAnnotation[] getParamAnnotations(int index) {
+		return this.paramAnnotations[index];
+	}
 	/*
 	 * The type parameters of this source type. Empty if none.
 	 */
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/TypeResolveTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/TypeResolveTests.java,v
retrieving revision 1.14
diff -u -r1.14 TypeResolveTests.java
--- src/org/eclipse/jdt/core/tests/model/TypeResolveTests.java	27 Jun 2008 16:02:40 -0000	1.14
+++ src/org/eclipse/jdt/core/tests/model/TypeResolveTests.java	9 Feb 2011 16:28:55 -0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -10,9 +10,12 @@
  *******************************************************************************/
 package org.eclipse.jdt.core.tests.model;
 
+import java.io.IOException;
+
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.jdt.core.*;
 import org.eclipse.jdt.core.tests.util.Util;
+import org.eclipse.jdt.internal.core.LocalVariable;
 
 import junit.framework.Test;
 
@@ -299,4 +302,71 @@
 		"p4.A.Inner",
 		types);
 }
+/**
+ * @see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=334783"
+ */
+public void testParamAnnotations() throws CoreException {
+	try {
+		createJavaProject("P", new String[] {"src"}, new String[] {"JCL15_LIB"}, "bin", "1.5");
+		String source = "package p;" +
+				"public class X<T> {\n" +
+				"  X<String> field;\n" +
+				"	@Inject " +
+				"	public void Test(@Default String processor) {}" +
+				"}" +
+				"@interface Inject{\n" +
+				"}" +
+				"@interface Default{\n" +
+				"}";
+		createFolder("/P/src/p");
+		createFile(
+			"/P/src/p/X.java",
+			source
+		);
+		waitForAutoBuild();
+		
+		ICompilationUnit unit = getCompilationUnit("/P/src/p/X.java"); 
+		IJavaElement[] variable = ((ICodeAssist) unit).codeSelect(source.indexOf("processor"), "processor".length());
+
+		assertEquals(1, variable.length);
+		String annotationString = "@Default (not open) [in processor [in Test(String) [in X [in X.java [in p [in src [in P]]]]]]]";
+		assertEquals(annotationString, ((LocalVariable)variable[0]).getAnnotations()[0].toString());
+		IType type = unit.getType("X");
+		
+		IMethod method = type.getMethods()[0];
+		assertEquals(annotationString, method.getParameterAnnotations(0)[0].toString());
+	} finally {
+		deleteProject("P");
+	}
+}
+/**
+ * @see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=334783"
+ */
+public void testParamAnnotations2() throws CoreException, IOException {
+	try {
+		IJavaProject project = createJavaProject("P", new String[] {"src"}, new String[] {"JCL15_LIB"}, "bin", "1.5");
+		String[] pathAndContents = new String[]{"p/X.java",
+				"package p;" +
+				"public class X<T> {\n" +
+				"  X<String> field;\n" +
+				"	@Inject " +
+				"	public void Test(@Default String processor) {}" +
+				"}" +
+				"@interface Inject{\n" +
+				"}" +
+				"@interface Default{\n" +
+				"}"};
+		addLibrary(project, "lib334783.jar", "libsrc.zip", pathAndContents, JavaCore.VERSION_1_5);
+		
+		waitForAutoBuild();
+		IPackageFragmentRoot root = project.getPackageFragmentRoot(getFile("/P/lib334783.jar"));
+		IType type = root.getPackageFragment("p").getClassFile("X.class").getType();
+		String annotationString = "@p.Default (not open) [in Test(java.lang.String) [in X [in X.class [in p [in lib334783.jar [in P]]]]]]";
+		
+		IMethod method = type.getMethods()[1];
+		assertEquals(annotationString, method.getParameterAnnotations(0)[0].toString());
+	} finally {
+		deleteProject("P");
+	}
+}
 }