Bug 47208 Generate Javadoc dialog lays out too wide [javadoc]
If one uses a custom doclet and sets the doclet class path to a long path (e.g. with many JAR files on it), the "Generate Javadoc" dialog lays out to try and fit the full doclet class path on the screen; this results in a very wide dialog.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocTreeWizardPage.java
for (int k= 0; k < packs.length; k++) {
							IJavaElement curr= packs[k];
							if (curr.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
								
								if (curr.getElementName().length() == 0 || !allChecked.contains(curr) || fInputGroup.isTreeItemGreyChecked(curr)) {
									incompletePackages.add(curr.getElementName());
								}
							}
						}
					}
				}
			}
			Iterator checkedElements= fInputGroup.getAllCheckedListItems();
			while (checkedElements.hasNext()) {
				Object element= checkedElements.next();
				if (element instanceof ICompilationUnit) {
					ICompilationUnit unit= (ICompilationUnit) element;
					if (incompletePackages.contains(unit.getParent().getElementName())) {
						res.add(unit);
					}
				}
			}
			Set addedPackages= new HashSet();
			checkedElements= allChecked.iterator();
			while (checkedElements.hasNext()) {
				Object element= checkedElements.next();
				if (element instanceof IPackageFragment) {
					IPackageFragment fragment= (IPackageFragment) element;
					String name= fragment.getElementName();
					if (!incompletePackages.contains(name) && !addedPackages.contains(name)) {