Bug 127723 refactoring history: warn when replacing a jar with an older version
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarimport/JarImportData.java
private URI fJarFileLocation= null;
	
	private IPackageFragmentRoot fPackageFragmentRoot= null;
	
	private RefactoringHistory fRefactoringHistory= null;
	
	private boolean fRenameJarFile= true;
	/**
	 * Returns the package fragment root to update.
	 * 
	 * @return the package fragment root, or <code>null</code>
	 */
	public IPackageFragmentRoot getPackageFragmentRoot() {
		return fPackageFragmentRoot;
	}
	/**
	 * Returns the location of the new jar file.
	 * 
	 * @return the location of the new jar file, or <code>null</code>