Bug 37197 Basepath for relative pathes in JAR-exporter
The basepath for the JAR-exporter is the eclipse-install-directory. I prefer it to be the root of the project (the description is saved in), so that relative pathes end inside the project. Now: <jardesc> <jar path="workspace/projectdir/jar.jar"/> Desired: <jardesc> <jar path="jar.jar"/> Reason: To make the jardesc-files portable for shared projects
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarPackageWizardPage.java
| JavaElementLabelProvider.SHOW_OVERLAY_ICONS
						| JavaElementLabelProvider.SHOW_SMALL_ICONS;
		ITreeContentProvider treeContentProvider=
			new StandardJavaElementContentProvider() {
				public boolean hasChildren(Object element) {
					
					return !(element instanceof IPackageFragment) && super.hasChildren(element);
				}
			};
		fInputGroup= new CheckboxTreeAndListGroup(
					parent,
					JavaCore.create(ResourcesPlugin.getWorkspace().getRoot()),
					treeContentProvider,
					new JavaElementLabelProvider(labelFlags),
					new StandardJavaElementContentProvider(),
					new JavaElementLabelProvider(labelFlags),
					SWT.NONE,
					SIZING_SELECTION_WIDGET_WIDTH,
					SIZING_SELECTION_WIDGET_HEIGHT);
		fInputGroup.addTreeFilter(new EmptyInnerPackageFilter());
		fInputGroup.setTreeSorter(new JavaElementSorter());
		fInputGroup.setListSorter(new JavaElementSorter());
		fInputGroup.addTreeFilter(new ContainerFilter(ContainerFilter.FILTER_NON_CONTAINERS));
		fInputGroup.addTreeFilter(new LibraryFilter());
		fInputGroup.addListFilter(new ContainerFilter(ContainerFilter.FILTER_CONTAINERS));
		fInputGroup.getTree().addListener(SWT.MouseUp, this);
		fInputGroup.getTable().addListener(SWT.MouseUp, this);
	}
	/**
	 * Creates the export type controls.