Bug 68868 Sometime a search results in the error "Memento problem" [search]
Sometimes when I do a search via Java editor popup menu References->Workspace, I get the following error in the error log: Memento problem - invalid integer for key: org.eclipse.jdt.search.resultpage.grouping value: TRUE An exception stack trace could not be found. eclipse.buildId=I200406251208 java.version=1.4.2_04 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Seems to be random. I can't find a specific search that causes the error, but it happens somewhat frequently.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchResultPage.java
return null;
	}
	
	protected void handleOpen(OpenEvent event) {
		Object firstElement= ((IStructuredSelection)event.getSelection()).getFirstElement();
		if (firstElement instanceof ICompilationUnit || 
				firstElement instanceof IClassFile || 
				firstElement instanceof IMember) {
			if (getDisplayedMatchCount(firstElement) == 0) {
				fActionGroup.handleOpen(event);
				return;
			}
		}
		super.handleOpen(event);
	}
	public void setFilters(MatchFilter[] enabledFilters) {
		fMatchFilters.clear();
		for (int i = 0; i < enabledFilters.length; i++) {
			fMatchFilters.add(enabledFilters[i]);
		}
		filtersChanged();
	}
	void setElementLimit(int elementLimit) {
		fElementLimit= elementLimit;
		getSettings().put(KEY_LIMIT, elementLimit);
		limitChanged();
	}
	
}