Bug 12049 Java Browing is not saving its state.
Open a java browing perspective. Select a project, package and type. Exit the workspace Re-start it. The selected project,package and type are not selected anymore.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/JavaBrowsingPart.java
import org.eclipse.ui.IViewSite;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.ActionContext;
import org.eclipse.ui.actions.ActionGroup;
import org.eclipse.ui.actions.NewWizardMenu;
import org.eclipse.ui.part.ResourceTransfer;
import org.eclipse.ui.part.ViewPart;
import org.eclipse.search.ui.ISearchResultView;
import org.eclipse.jdt.core.IClassFile;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.IWorkingCopy;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.IContextMenuConstants;
import org.eclipse.jdt.ui.IWorkingCopyManager;
import org.eclipse.jdt.ui.JavaElementLabelProvider;
import org.eclipse.jdt.ui.JavaElementSorter;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jdt.ui.StandardJavaElementContentProvider;
import org.eclipse.jdt.ui.actions.BuildActionGroup;
import org.eclipse.jdt.ui.actions.CCPActionGroup;
import org.eclipse.jdt.ui.actions.CustomFiltersActionGroup;