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
* Tells whether the specified manifest main class is valid.
	 *
	 * @param context the {@link IRunnableContext}
	 * @return <code>true</code> if a main class is specified and valid
	 */
	public boolean isMainClassValid(IRunnableContext context) {
		return JarPackagerUtil.isMainClassValid(this, context);
	}
	/**
	 * Tells whether directory entries are added to the jar.
	 * 
	 * @return	<code>true</code> if directory entries are to be included
	 * 
	 * @since 3.1
	 */
	public boolean areDirectoryEntriesIncluded() {
		return fIncludeDirectoryEntries;
	}
	/**
	 * Sets the option to include directory entries into the jar.
	 * 
	 * @param includeDirectoryEntries <code>true<code> to include
	 *  directory entries <code>false</code> otherwise
	 *  
	 *  @since 3.1
	 */
	public void setIncludeDirectoryEntries(boolean includeDirectoryEntries) {
		fIncludeDirectoryEntries = includeDirectoryEntries;
	}
	/**