Bug 120598 Refactoring History JAR Export Wizard should allow (de-)selecting refactorings
I20051213-0010 It is currently not possible to deselect single refactorings from the history during the export of a JAR - only refactorings before a certain date can be excluded. I'd suggest adding the possibility of selecting/deselecting refactorings.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/jarpackager/JarPackageData.java
* This flag is only considered if auto-build is off.
	 * 
	 * @return a boolean telling if a build should be performed
	 */
	public boolean isBuildingIfNeeded() {
		return fBuildIfNeeded;
	}
	
	/**
	 * Sets if a build should be performed before exporting files.
	 * This flag is only considered if auto-build is off.
	 * 
	 * @param buildIfNeeded a boolean telling if a build should be performed
	 */
	public void setBuildIfNeeded(boolean buildIfNeeded) {
		fBuildIfNeeded= buildIfNeeded;
	}
	
	
	/**
	 * Finds the class files for the given java file 
	 * and returns them.
	 * <p>
	 * This is a hook for subclasses which want to implement
	 * a different strategy for finding the class files. The default
	 * strategy is to query the class files for the source file
	 * name attribute. If this attribute is missing then all class
	 * files in the corresponding output folder are exported.
	 * </p>
	 * <p>