Bug 95632 [build path] exception when changing source folders
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathBasePage.java
newExclusionFilters[exclusionFilters.length]= pathToExclude;
						curr.setAttribute(CPListElement.EXCLUSION, newExclusionFilters);
						modifiedEntries.add(curr);
					}
				}
			}
		}
	}
	
	protected boolean containsOnlyTopLevelEntries(List selElements) {
		if (selElements.size() == 0) {
			return true;
		}
		for (int i= 0; i < selElements.size(); i++) {
			Object elem= selElements.get(i);
			if (elem instanceof CPListElement) {
				if (((CPListElement) elem).getParentContainer() != null) {
					return false;
				}
			} else {
				return false;
			}
		}
		return true;
	}
	public abstract void init(IJavaProject javaProject);
	public abstract Control getControl(Composite parent);
	
}