### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
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 1.107
diff -u -r1.107 BinaryMethod.java
--- model/org/eclipse/jdt/internal/core/BinaryMethod.java	7 Sep 2010 03:17:29 -0000	1.107
+++ model/org/eclipse/jdt/internal/core/BinaryMethod.java	25 Nov 2010 08:59:39 -0000
@@ -302,8 +302,8 @@
 			return this.parameterNames = names;
 		}
 	}
-	// if still no parameter names, produce fake ones
-	return this.parameterNames = getRawParameterNames(paramCount);
+	// If still no parameter names, produce fake ones, but don't cache them (https://bugs.eclipse.org/bugs/show_bug.cgi?id=329671)
+	return getRawParameterNames(paramCount);
 }
 private char[][] splitParameters(char[] parametersSource, int paramCount) {
 	// we have generic types as one of the parameter types
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/CompletionTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/CompletionTests.java,v
retrieving revision 1.233
diff -u -r1.233 CompletionTests.java
--- src/org/eclipse/jdt/core/tests/model/CompletionTests.java	24 Nov 2010 16:56:38 -0000	1.233
+++ src/org/eclipse/jdt/core/tests/model/CompletionTests.java	25 Nov 2010 08:59:42 -0000
@@ -34,6 +34,8 @@
 import org.eclipse.jdt.core.eval.IEvaluationContext;
 import org.eclipse.jdt.internal.codeassist.CompletionEngine;
 import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
+import org.eclipse.jdt.internal.core.JavaModelManager;
+import org.eclipse.jdt.internal.core.JavaModelManager.PerProjectInfo;
 import org.eclipse.jdt.internal.core.eval.EvaluationContextWrapper;
 
 public class CompletionTests extends AbstractJavaModelCompletionTests {
@@ -21856,4 +21858,52 @@
 			"myString1[LOCAL_VARIABLE_REF]{myString1, null, Ljava.lang.String;, myString1, null, " + (R_NON_STATIC + R_UNQUALIFIED + R_CASE + R_NON_RESTRICTED + R_EXACT_EXPECTED_TYPE) + "}",
 			requestor.getResults());
 }
+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=329671
+public void testBug329671() throws CoreException, IOException {
+	Map options = this.currentProject.getOptions(false);
+	Object timeout = options.get(JavaCore.TIMEOUT_FOR_PARAMETER_NAME_FROM_ATTACHED_JAVADOC);
+	options.put(JavaCore.TIMEOUT_FOR_PARAMETER_NAME_FROM_ATTACHED_JAVADOC, "1"); //$NON-NLS-1$
+	this.currentProject.setOptions(options);
+
+	try {
+		this.workingCopies = new ICompilationUnit[1];
+		this.workingCopies[0] = getWorkingCopy(
+			"/Completion/src/p/Test.java",
+			"package p;"+
+			"public class Test {\n" +
+			"  void foo(bug.X x) {\n" +
+			"    x.fo\n" +
+			"  }\n" +
+			"}\n");
+
+		addLibrary(
+				"Completion",
+				"bug329671.jar",
+				null,
+				"bug329671_doc.zip",
+				false);
+
+		try {
+			CompletionTestsRequestor2 requestor = new CompletionTestsRequestor2(true);
+			String str = this.workingCopies[0].getSource();
+			String completeBehind = "x.fo";
+			int cursorLocation = str.lastIndexOf(completeBehind) + completeBehind.length();
+			this.workingCopies[0].codeComplete(cursorLocation, requestor, this.wcOwner);
+			assertResults("foo[METHOD_REF]{foo(), Lbug.X;, (Ljava.lang.Object;)V, foo, (arg0), 35}", requestor.getResults());
+			PerProjectInfo projectInfo = JavaModelManager.getJavaModelManager().getPerProjectInfoCheckExistence(this.currentProject.getProject());
+			projectInfo.javadocCache.flush();
+			options.put(JavaCore.TIMEOUT_FOR_PARAMETER_NAME_FROM_ATTACHED_JAVADOC, "5000"); //$NON-NLS-1$
+			this.currentProject.setOptions(options);
+			requestor = new CompletionTestsRequestor2(true);
+			this.workingCopies[0].codeComplete(cursorLocation, requestor, this.wcOwner);
+			assertResults("foo[METHOD_REF]{foo(), Lbug.X;, (Ljava.lang.Object;)V, foo, (param), 35}", requestor.getResults());
+		} finally {
+			removeLibrary("Completion", "bug329671.jar");
+		}
+	} finally {
+		if (timeout != null)
+			options.put(JavaCore.TIMEOUT_FOR_PARAMETER_NAME_FROM_ATTACHED_JAVADOC, timeout);
+		this.currentProject.setOptions(options);
+	}
+}
 }