### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.ui
Index: ui/org/eclipse/jdt/internal/ui/viewsupport/FilterUpdater.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/FilterUpdater.java,v
retrieving revision 1.7
diff -u -r1.7 FilterUpdater.java
--- ui/org/eclipse/jdt/internal/ui/viewsupport/FilterUpdater.java	18 Apr 2007 15:28:42 -0000	1.7
+++ ui/org/eclipse/jdt/internal/ui/viewsupport/FilterUpdater.java	20 Apr 2007 17:41:30 -0000
@@ -66,11 +66,17 @@
 	
 	private boolean needsRefiltering(IProject project) {
 		try {
+			boolean inView= fViewer.testFindItem(project) != null;
+			
 			Object element= project;
-			if (project.hasNature(JavaCore.NATURE_ID)) {
+			if (project.hasNature(JavaCore.NATURE_ID) && project.isOpen()) {
 				element= JavaCore.create(project);
+				boolean javaProjectInView= fViewer.testFindItem(element) != null;
+				if (inView && javaProjectInView)
+					return true; //https://bugs.eclipse.org/bugs/show_bug.cgi?id=183409
+				inView|= javaProjectInView;
 			}
-			boolean inView= fViewer.testFindItem(element) != null;
+			
 			boolean afterFilter= !fViewer.isFiltered(element, fViewer.getInput());
 			
 			return inView != afterFilter;