I brought up HotJava on Windows NT 4.0.

After the "What's Hot" page was up, I clicked on "Show Places List..."
in the Places menu.

The outline of the Remembered Places frame was drawn, and then
HotJava hung.
This hang does not occur every time these actions are performed.

Stack trace
===========
Full thread dump:
    "ImageMap Animator" (TID:0xf821c8, sys_thread_t:0x8a2460, Win32ID:0x60, stat
e:S) prio=2
        sun.hotjava.applets.imagemap.ImageMap.run(ImageMap.java:251)
        java.lang.Thread.run(Thread.java:481)
    "thread applet-sun.hotjava.applets.imagemap.ImageMap" (TID:0xf81280, sys_thr
ead_t:0x8a4a60, Win32ID:0x8d, state:S) prio=4
        java.lang.Object.wait(Object.java:315)
        sun.applet.AppletPanel.getNextEvent(AppletPanel.java:204)
        sun.applet.AppletPanel.run(AppletPanel.java:230)
        sun.hotjava.tags.TagAppletPanel.run(TagAppletPanel.java:193)
        java.lang.Thread.run(Thread.java:481)
    "AWT-Finalizer" (TID:0xf7d370, sys_thread_t:0x8a07e0, Win32ID:0x87, state:S)
 prio=8
        java.lang.Object.wait(Object.java:315)
        sun.awt.AWTFinalizer.run(AWTFinalizer.java:48)
    "Image Animator" (TID:0xf75728, sys_thread_t:0x88b940, Win32ID:0x69, state:C
W) prio=4
        sun.awt.image.GifImageDecoder.readImage(GifImageDecoder.java:548)
        sun.awt.image.GifImageDecoder.produceImage(GifImageDecoder.java:223)
        sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java
:219)
        sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:139)
        sun.awt.image.ImageFetcher.run(ImageFetcher.java:116)
    "Screen Updater" (TID:0xf7a4b0, sys_thread_t:0x888e40, Win32ID:0x78, state:S
) prio=4
        java.lang.Object.wait(Object.java:315)
        sun.awt.ScreenUpdater.nextEntry(ScreenUpdater.java:78)
        sun.awt.ScreenUpdater.run(ScreenUpdater.java:98)
    "AWT-Windows" (TID:0xf66d70, sys_thread_t:0x86a630, Win32ID:0x82, state:S) p
rio=5
        java.awt.FocusManager.focusForward(Window.java:605)
        java.awt.FocusManager.activateFocus(Window.java:486)
        sun.awt.windows.WToolkit.run(WToolkit.java:103)
        java.lang.Thread.run(Thread.java:481)
    "AWT-EventQueue-0" (TID:0xf66cc8, sys_thread_t:0x86a560, Win32ID:0x7f, state
:S) prio=5
        sun.awt.windows.WScrollPanePeer.childResized(WScrollPanePeer.java:83)
        java.awt.ScrollPane.layout(ScrollPane.java:356)
        java.awt.ScrollPane.doLayout(ScrollPane.java:299)
        java.awt.Container.validateTree(Container.java:486)
        java.awt.Container.validateTree(Container.java:492)
        java.awt.Container.validate(Container.java:468)
        sun.hotjava.ui.ListPanel.initialize(HotListFrame.java:1102)
        sun.hotjava.ui.HotListFrame.show(HotListFrame.java:165)
        sun.hotjava.ui.HotListFrame.openList(HotListFrame.java:174)
        sun.hotjava.ui.EditorFrame.action(EditorFrame.java:1492)
        sun.hotjava.ui.EditorFrame.handleEvent(EditorFrame.java:1745)
        java.awt.Window.postEvent(Window.java:411)
        java.awt.MenuComponent.postEvent(MenuComponent.java:126)
        java.awt.MenuComponent.postEvent(MenuComponent.java:126)
        java.awt.MenuComponent.postEvent(MenuComponent.java:126)
        sun.hotjava.ui.UserMenuItem.postEvent(UserMenuItem.java:77)
        java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:154)
        java.awt.MenuComponent.dispatchEvent(MenuComponent.java:136)
        java.awt.EventDispatchThread.run(EventDispatchThread.java:64)
    "Alloc State Notifier" (TID:0xf659a0, sys_thread_t:0x860e10, Win32ID:0x5b, s
tate:S) prio=8
        java.lang.Object.wait(Object.java:315)
        sun.misc.VMNotifierThread.run(VM.java:124)
    "Red Alloc State Notifier" (TID:0xf65980, sys_thread_t:0x8609f0, Win32ID:0x8
a, state:S) prio=10
        java.lang.Object.wait(Object.java:315)
        sun.misc.VMNotifierThread.run(VM.java:124)
    "Request Processor" (TID:0xf65838, sys_thread_t:0x860190, Win32ID:0x3e, stat
e:S) prio=6
        sun.misc.Queue.dequeue(Queue.java:84)
        sun.misc.Queue.dequeue(Queue.java:71)
        sun.misc.RequestProcessor.run(RequestProcessor.java:56)
        java.lang.Thread.run(Thread.java:481)
    "Finalizer thread" (TID:0xf500d0, sys_thread_t:0x85b3a0, Win32ID:0x76, state
:CW) prio=2
    "main" (TID:0xf500a8, sys_thread_t:0x857160, Win32ID:0x66, state:S) prio=5
Monitor Cache Dump:
    <unknown key> (0x88b940): <unowned>
        Waiters: 1
    sun.awt.windows.WScrollPanePeer@F809F0/1081B78: owner "AWT-EventQueue-0" (0x
86a560, 1 entry)
    sun.misc.VMNotifierThread@F659A0/FD7F00: <unowned>
        Waiters: 1
    sun.hotjava.tags.TagAppletPanel@F80EE0/1060C50: <unowned>
        Waiters: 1
    sun.misc.VMNotifierThread@F65980/FD7E48: <unowned>
        Waiters: 1
    sun.hotjava.applets.imagemap.ImageMap@F82310/1064CF8: <unowned>
        Waiters: 1
    sun.awt.AWTFinalizer@F7D370/1036078: <unowned>
        Waiters: 1
    java.lang.Object@F65D40/FD8D60: owner "AWT-EventQueue-0" (0x86a560, 1 entry)

    sun.misc.Queue@F658C0/FD7C20: <unowned>
        Waiters: 1
    sun.awt.ScreenUpdater@F7A4B0/FFAFC8: <unowned>
        Waiters: 1
Registered Monitor Dump:
    Thread queue lock: <unowned>
        Waiters: 1
    Name and type hash table lock: <unowned>
    String intern lock: <unowned>
    JNI global reference lock: <unowned>
    BinClass lock: <unowned>
    Class loading lock: <unowned>
    Java stack lock: <unowned>
    Code rewrite lock: <unowned>
    Heap lock: <unowned>
    Has finalization queue lock: <unowned>
    Finalize me queue lock: <unowned>
        Waiters: 1
    Monitor cache expansion lock: <unowned>
    Monitor registry: <unowned>