Bug 35543 Export Jar takes forever [jar creation]
The "Saving Files..." part of the Export Jar wizard takes several minutes. This could be because the jar I am rebuilding in on my classpath... I do not know since the feedback only says "Saving Files...". So, perhaps only better feedback is needed if e is recompiling my project. Version: 2.1.0 Build id: 200303202147
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarFileExportOperation.java
if (pkgFragment != null)
							pkgRoot= JavaModelUtil.getPackageFragmentRoot(pkgFragment);
						else
							pkgRoot= findPackageFragmentRoot(jProject, resource.getFullPath().removeLastSegments(1));
					} catch (JavaModelException ex) {
						addWarning(JarPackagerMessages.getFormattedString("JarFileExportOperation.javaPackageNotDeterminable", resource.getFullPath()), ex); 
						return;
					}
				}
			}
			
			if (pkgRoot != null) {
				leadSegmentsToRemove= pkgRoot.getPath().segmentCount();
				boolean isOnBuildPath;
				isOnBuildPath= jProject.isOnClasspath(resource);
				if (!isOnBuildPath || (mustUseSourceFolderHierarchy() && !pkgRoot.getElementName().equals(IPackageFragmentRoot.DEFAULT_PACKAGEROOT_PATH)))
					leadSegmentsToRemove--;
			}
			
			IPath destinationPath= resource.getFullPath().removeFirstSegments(leadSegmentsToRemove);
			
			boolean isInOutputFolder= false;
			if (isInJavaProject) {
				try {
					isInOutputFolder= jProject.getOutputLocation().isPrefixOf(resource.getFullPath());
				} catch (JavaModelException ex) {
					isInOutputFolder= false;
				}
			}