Bug 136921 [IDE] New File dialog locks for 20 seconds
I have fairly large workspace (many thousands files in 150+ projects). Whenever I try to create a new file, "New File" dialog stays locked for 15-20 seconds before I can start typing file name. CPU utilization is 100% during this time. Eclipse 3.2 I20060331-2000, WinXP SP2, tried with both IBM Java 1.5.0 SR1 and SUN 1.5.0_05.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/misc/ContainerSelectionGroup.java
* @param message The text to present to the user.
     */
    public ContainerSelectionGroup(Composite parent, Listener listener,
            boolean allowNewContainerName, String message) {
        this(parent, listener, allowNewContainerName, message, true);
    }
    /**
     * Creates a new instance of the widget.
     *
     * @param parent The parent widget of the group.
     * @param listener A listener to forward events to.  Can be null if
     *	 no listener is required.
     * @param allowNewContainerName Enable the user to type in a new container
     *  name instead of just selecting from the existing ones.
     * @param message The text to present to the user.
     * @param showClosedProjects Whether or not to show closed projects.
     */
    public ContainerSelectionGroup(Composite parent, Listener listener,
            boolean allowNewContainerName, String message,
            boolean showClosedProjects) {
        this(parent, listener, allowNewContainerName, message,
                showClosedProjects, SIZING_SELECTION_PANE_HEIGHT, SIZING_SELECTION_PANE_WIDTH);
    }
    /**
     * Creates a new instance of the widget.
     *
     * @param parent The parent widget of the group.
     * @param listener A listener to forward events to.  Can be null if
     *	 no listener is required.
     * @param allowNewContainerName Enable the user to type in a new container