Bug 51609 Not all interfaces shown in Type Hierarchy
I200402102000 Open Type Hierarchy on package junit.framework. Observe: only one interface instead of three is shown. Nothing in .log
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TraditionalHierarchyViewer.java
protected final void getTypesInHierarchy(IType type, List res) {
			ITypeHierarchy hierarchy= getHierarchy();
			if (hierarchy != null) {
				IType[] types= hierarchy.getSubtypes(type);
				if (isObject(type)) {
					for (int i= 0; i < types.length; i++) {
						IType curr= types[i];
						if (!isAnonymous(curr)) {
							res.add(curr);
						}
					}
				} else {
					for (int i= 0; i < types.length; i++) {
						res.add(types[i]);
					}
				}
			}
		}
		protected IType getParentType(IType type) {
			ITypeHierarchy hierarchy= getHierarchy();
			if (hierarchy != null) {
				return hierarchy.getSuperclass(type);
				
			}
			return null;
		}	
			
	}
}