Bug 232196 Workspace chooser cancel button results in crash on Linux
Hitting cancel on the Workspace Launcher in the Linux Motif build, I get a crash (attaching logfile).
bundles/org.eclipse.ui.ide.application/src/org/eclipse/ui/internal/ide/application/IDEApplication.java
.openError(
                        shell,
                        IDEWorkbenchMessages.IDEApplication_workspaceEmptyTitle,
                        IDEWorkbenchMessages.IDEApplication_workspaceEmptyMessage);
                continue;
            }
            
            File workspace = new File(instancePath);
            if (!workspace.exists()) {
				workspace.mkdir();
			}
            try {
                
                  
                String path = workspace.getAbsolutePath().replace(
                        File.separatorChar, '/');
                url = new URL("file", null, path); 
            } catch (MalformedURLException e) {
                MessageDialog
                        .openError(
                                shell,
                                IDEWorkbenchMessages.IDEApplication_workspaceInvalidTitle,
                                IDEWorkbenchMessages.IDEApplication_workspaceInvalidMessage);
                continue;
            }
        } while (!checkValidWorkspace(shell, url));
        return url;
    }
    /**
     * Return true if the argument directory is ok to use as a workspace and