Bug 41523 Keep Order of libs when editing library [build path]
When I edit a library in the Properties dialog of my project using "Properties"->"Java Build Path"->"Libraries"->"Edit", e.g. changing the JRE from 1.4 to 1.3, or changing from an old version of a JAR to a newer one, the changed library is at the last position in the classpath. It should kept at the position it was.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/CPListElement.java
public Object getAttribute(String key) {
		CPListElementAttribute attrib= findAttributeElement(key);
		if (attrib != null) {
			return attrib.getValue();
		}
		return null;
	}
	
	private void createAttributeElement(String key, Object value) {
		fChildren.add(new CPListElementAttribute(this, key, value));
	}	
	
	
	public Object[] getChildren(boolean hideOutputFolder) {
		if (hideOutputFolder && fEntryKind == IClasspathEntry.CPE_SOURCE) {
			return new Object[] { findAttributeElement(EXCLUSION) };
		}
		return fChildren.toArray();
	}
	
	private void setParentContainer(CPListElement element) {
		fParentContainer= element;
	}
	
	public CPListElement getParentContainer() {
		return fParentContainer;
	}	
	
	private void attributeChanged(String key) {
		fCachedEntry= null;