Bug 68011 [java search] "Search the JRE System Libraries" looks like a local preference but behaves as a global one... [search]
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/SearchMessages.java
public static String SearchPage_limitTo_readReferences;
	public static String SearchPage_limitTo_writeReferences;
	public static String SearchPage_expression_label;
	public static String SearchPage_expression_caseSensitive;
	public static String SearchPage_searchJRE_label;
	public static String SearchUtil_workingSetConcatenation;
	public static String Search_FindDeclarationAction_label;
	public static String Search_FindDeclarationAction_tooltip;
	public static String Search_FindDeclarationsInProjectAction_label;
	public static String Search_FindDeclarationsInProjectAction_tooltip;
	public static String Search_FindDeclarationsInWorkingSetAction_label;
	public static String Search_FindDeclarationsInWorkingSetAction_tooltip;
	public static String Search_FindHierarchyDeclarationsAction_label;
	public static String Search_FindHierarchyDeclarationsAction_tooltip;
	public static String Search_FindImplementorsAction_label;
	public static String Search_FindImplementorsAction_tooltip;
	public static String Search_FindImplementorsInProjectAction_label;
	public static String Search_FindImplementorsInProjectAction_tooltip;
	public static String Search_FindImplementorsInWorkingSetAction_label;
	public static String Search_FindImplementorsInWorkingSetAction_tooltip;
	public static String Search_FindReferencesAction_label;
	public static String Search_FindReferencesAction_tooltip;
	public static String Search_FindReferencesAction_BinPrimConstWarnDialog_title;
	public static String Search_FindReferencesAction_BinPrimConstWarnDialog_message;
	public static String Search_FindReferencesInProjectAction_label;
	public static String Search_FindReferencesInProjectAction_tooltip;
	public static String Search_FindReferencesInWorkingSetAction_label;
	public static String Search_FindReferencesInWorkingSetAction_tooltip;
	public static String Search_FindHierarchyReferencesAction_label;
	public static String Search_FindHierarchyReferencesAction_tooltip;