### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/internal/core/ChangeClasspathOperation.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/ChangeClasspathOperation.java,v
retrieving revision 1.4
diff -u -r1.4 ChangeClasspathOperation.java
--- model/org/eclipse/jdt/internal/core/ChangeClasspathOperation.java	24 May 2007 13:15:25 -0000	1.4
+++ model/org/eclipse/jdt/internal/core/ChangeClasspathOperation.java	14 Dec 2007 16:30:26 -0000
@@ -40,6 +40,10 @@
 	 * - create resolved classpath markers
 	 */
 	protected void classpathChanged(JavaProject project) throws JavaModelException {
+		// reset the project's caches early since some clients rely on the project's caches being up-to-date when run inside an IWorkspaceRunnable
+		// (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=212769#c5 )
+		project.resetCaches();
+		
 		DeltaProcessingState state = JavaModelManager.getJavaModelManager().deltaState;
 		DeltaProcessor deltaProcessor = state.getDeltaProcessor();
 		ClasspathChange change = (ClasspathChange) deltaProcessor.classpathChanges.get(project.getProject());
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/ExternalJarDeltaTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/ExternalJarDeltaTests.java,v
retrieving revision 1.28
diff -u -r1.28 ExternalJarDeltaTests.java
--- src/org/eclipse/jdt/core/tests/model/ExternalJarDeltaTests.java	20 Oct 2006 01:45:46 -0000	1.28
+++ src/org/eclipse/jdt/core/tests/model/ExternalJarDeltaTests.java	14 Dec 2007 16:30:31 -0000
@@ -293,6 +293,42 @@
 		this.stopDeltas();
 	}
 }
+/*
+ * Ensures that the correct delta is reported after a setRawClasspath and after a modification of an external jar.
+ * (regression test for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212769 )
+ */
+public void testExternalJarChanged7() throws CoreException, IOException {
+	File f = null;
+	try {
+		IJavaProject project = this.createJavaProject("P", new String[] {""}, "");
+		
+		String pPath = getExternalPath() + "p.jar";
+		setClasspath(project, new IClasspathEntry[]{JavaCore.newLibraryEntry(new Path(pPath), null, null)});
+		
+		f = new File(pPath);
+		f.createNewFile();
+		getJavaModel().refreshExternalArchives(null,null);
+		waitUntilIndexesReady();
+		startDeltas();
+		
+		touch(f);
+		setClasspath(project, new IClasspathEntry[]{JavaCore.newLibraryEntry(new Path(pPath), null, null), JavaCore.newSourceEntry(new Path("/P"))});
+		
+		assertDeltas(
+			"Unexpected delta", 
+			"P[*]: {CHILDREN | CONTENT | CLASSPATH CHANGED}\n" + 
+			"	<project root>[*]: {ADDED TO CLASSPATH}\n" + 
+			"	"+f.getCanonicalPath()+"[*]: {CONTENT | ARCHIVE CONTENT CHANGED}\n" + 
+			"	ResourceDelta(/P/.classpath)[*]"
+		);
+	} finally {
+		if(f != null) {
+			deleteFile(f);
+		}
+		this.deleteProject("P");
+		this.stopDeltas();
+	}
+}
 /**
  * Refresh the JavaModel after an addition of an external jar.
  */
Index: src/org/eclipse/jdt/core/tests/model/JavaProjectTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/JavaProjectTests.java,v
retrieving revision 1.84.2.1
diff -u -r1.84.2.1 JavaProjectTests.java
--- src/org/eclipse/jdt/core/tests/model/JavaProjectTests.java	24 Aug 2007 12:55:16 -0000	1.84.2.1
+++ src/org/eclipse/jdt/core/tests/model/JavaProjectTests.java	14 Dec 2007 16:30:31 -0000
@@ -391,6 +391,33 @@
 	assertEquals("Unexpected number of roots for non existing entry", 0, roots.length);
 
 }
+/*
+ * Ensures that a type can be found if run after setting the classpath in a runnable
+ * (regression test for https://bugs.eclipse.org/bugs/show_bug.cgi?id=212769 )
+ */
+public void testFindTypeAfterSetClasspath() throws CoreException {
+	try {
+		final IJavaProject project = createJavaProject("P", new String[] {"src1"}, "bin");
+		createFolder("/P/src2/p");
+		createFile("/P/src2/p/X.java", "package p; public class X {}");
+		project.findType("p.X"); // populate project's cache
+		final IType[] result = new IType[1];
+		ResourcesPlugin.getWorkspace().run(
+			new IWorkspaceRunnable() {
+				public void run(IProgressMonitor monitor) throws CoreException {
+					addClasspathEntry(project, JavaCore.newSourceEntry(new Path("/P/src2")));
+					result[0] = project.findType("p.X");
+				}
+			},
+			null);
+		assertElementsEqual(
+			"Unexpected type found",
+			"X [in X.java [in p [in src2 [in P]]]]",
+			result);
+	} finally {
+		deleteProject("P");
+	}
+}
 /**
  * Test that a folder with a dot name does not relate to a package fragment
  */
Index: src/org/eclipse/jdt/core/tests/model/AbstractJavaModelTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/AbstractJavaModelTests.java,v
retrieving revision 1.185
diff -u -r1.185 AbstractJavaModelTests.java
--- src/org/eclipse/jdt/core/tests/model/AbstractJavaModelTests.java	27 Mar 2007 14:28:56 -0000	1.185
+++ src/org/eclipse/jdt/core/tests/model/AbstractJavaModelTests.java	14 Dec 2007 16:30:31 -0000
@@ -233,6 +233,13 @@
 		return suite;
 	}
 
+	protected void addClasspathEntry(IJavaProject project, IClasspathEntry entry) throws JavaModelException{
+		IClasspathEntry[] entries = project.getRawClasspath();
+		int length = entries.length;
+		System.arraycopy(entries, 0, entries = new IClasspathEntry[length + 1], 0, length);
+		entries[length] = entry;
+		project.setRawClasspath(entries, null);
+	}
 	protected void addJavaNature(String projectName) throws CoreException {
 		IProject project = getWorkspaceRoot().getProject(projectName);
 		IProjectDescription description = project.getDescription();