Bug 57283 JavaDocExport: if destination path has spaces, the JavaDoc is generated into the incorrect (truncated) path or fails [javadoc]
Steps to reproduce (Eclipse3.0M8): Create a project with any name; Create some classes there; Execute Export->Javadoc. In the wizard, in the destination editbox, type any name that contains spaces. If the spaces are only in the last segment of the path (say, c:\tmp\my project), the javadoc is just generated in the incorrect (truncated) location (in this example, c:\tmp\my). If there are spaces before the last segment (e.g., c:\Documents and Settings\user\My Documents\my project), generation only produces 2 empty folders (in this example, C:\Documents and the destination that was typed) and fails to do anything else.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocOptionsManager.java
IPackageFragmentRoot[] roots= project.getPackageFragmentRoots();
			for (int i= 0; i < roots.length; i++) {
				if (containsCompilationUnits(roots[i])) {
					return true;
				}
			}
		}
		return false;
	}
	private boolean containsCompilationUnits(IPackageFragmentRoot root) throws JavaModelException {
		if (root.getKind() != IPackageFragmentRoot.K_SOURCE) {
			return false;
		}
		IJavaElement[] elements= root.getChildren();
		for (int i= 0; i < elements.length; i++) {
			if (elements[i] instanceof IPackageFragment) {
				IPackageFragment fragment= (IPackageFragment) elements[i];
				if (containsCompilationUnits(fragment)) {
					return true;
				}
			}
		}
		return false;
	}
	private boolean containsCompilationUnits(IPackageFragment pack) throws JavaModelException {
		return pack.getCompilationUnits().length > 0;
	}
	public RecentSettingsStore getRecentSettings() {
		return fRecentSettings;
	}