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
* The following entry will be added to the manifest file for each package:
	 * Name: <name of the package>
	 * Sealed: false
	 * <p>
	 * This should only be used if the JAR itself is sealed.
	 * </p>
	 * 
	 * @return an array of <code>IPackageFragment</code>
	 */
	public IPackageFragment[] getPackagesToUnseal() {
		if (fPackagesToUnseal == null)
			return new IPackageFragment[0];
		else
			return fPackagesToUnseal;
	}
	/**
	 * Set the packages which should explicitly be unsealed.
	 * The following entry will be added to the manifest file for each package:
	 * Name: <name of the package>
	 * Sealed: false
	 * <p>
	 * This should only be used if the JAR itself is sealed.
	 * </p>
	 * 
	 * @param packagesToUnseal an array of <code>IPackageFragment</code>
	 */
	public void setPackagesToUnseal(IPackageFragment[] packagesToUnseal) {
		fPackagesToUnseal= packagesToUnseal;
	}
	/**