### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/internal/core/JavaModelManager.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/JavaModelManager.java,v
retrieving revision 1.325
diff -u -r1.325 JavaModelManager.java
--- model/org/eclipse/jdt/internal/core/JavaModelManager.java	14 Feb 2006 12:25:31 -0000	1.325
+++ model/org/eclipse/jdt/internal/core/JavaModelManager.java	17 Feb 2006 16:38:47 -0000
@@ -1143,7 +1143,7 @@
 		// create the delta builder (this remembers the current content of the working copy)
 		// outside the perWorkingCopyInfos lock (see bug 50667)
 		JavaElementDeltaBuilder deltaBuilder = null;
-		if (workingCopy.isPrimary()) {
+		if (workingCopy.isPrimary() && workingCopy.hasUnsavedChanges()) {
 			deltaBuilder = new JavaElementDeltaBuilder(workingCopy);
 		}
 		PerWorkingCopyInfo info = null;