Bug 37249 Export Javadoc does not give any error when the path to javadoc.exe is bogus
Version: 2.1.0 Build id: 200303272130 I had a bogus path to javadoc.exe in Preferences/Java/Javadoc. When I clicked Finish in the Export/Javadoc wizard, nothing happened. I gave up using the feature until today when I ran accross my bad Preference setting. Obviously, the wizard needed to give the user some kind of error message. (FYI, this happened when I upgraded my set up from Sun's 1.4.1_01 to 1.4.1_02.)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocTreeWizardPage.java
* different projects. If the list of seletected elements is empty a default
	* project is selected.
	 */
	protected void setTreeChecked(IJavaElement[] sourceElements, IJavaProject project) {
		if (sourceElements.length < 1)
			fInputGroup.initialCheckTreeItem(project);
		else {
			for (int i= 0; i < sourceElements.length; i++) {
				IJavaElement curr= sourceElements[i];
				if (curr instanceof ICompilationUnit) {
					fInputGroup.initialCheckListItem(curr);
				} else if (curr instanceof IPackageFragment) {
					fInputGroup.initialCheckTreeItem(curr);
				} else if (curr instanceof IJavaProject) {
					fInputGroup.initialCheckTreeItem(curr);
				} else if (curr instanceof IPackageFragmentRoot) {
					IPackageFragmentRoot root= (IPackageFragmentRoot) curr;
					if (!root.isArchive())
						fInputGroup.initialCheckTreeItem(curr);
				}
			}
		}
	}
	private IPath[] getSourcePath(IJavaProject[] projects) {
		ArrayList res= new ArrayList();
		
		for (int k= 0; k < projects.length; k++) {
			IJavaProject iJavaProject= projects[k];
			try {
				IPackageFragmentRoot[] roots= iJavaProject.getPackageFragmentRoots();