Running the attached file with JDK1.2-"O" produces this segmentation violation on Solaris 2.5.1 :

/home/lichtenw( 22 )% java -Djava.compiler= Stars3D
SIGSEGV 11* segmentation violation
    si_signo [11]: SIGSEGV 11* segmentation violation
    si_errno [0]: Error 0
    si_code [1]: SEGV_MAPERR [addr: 0x10]

        stackpointer=eabf08c8

Full thread dump Classic VM (Java2DFCS:15-Oct-98@05:58, green threads):
    "AWT-Finalizer" (TID:0xebccb078, sys_thread_t:0x49fcb8, state:CW) prio=9
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:424)
        at sun.awt.AWTFinalizer.run(AWTFinalizer.java:46)
    "Screen Updater" (TID:0xebc9fdb8, sys_thread_t:0x3c2320, state:CW) prio=4
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:424)
        at sun.awt.ScreenUpdater.nextEntry(ScreenUpdater.java:79)
        at sun.awt.ScreenUpdater.run(ScreenUpdater.java:99)
    "TimerQueue" (TID:0xebca5508, sys_thread_t:0x36f548, state:CW) prio=5
        at java.lang.Object.wait(Native Method)
        at javax.swing.TimerQueue.run(TimerQueue.java:205)
        at java.lang.Thread.run(Thread.java:479)
    "AWT-Motif" (TID:0xebcaff70, sys_thread_t:0x283f60, state:R) prio=5
        at sun.awt.motif.MToolkit.run(Native Method)
        at java.lang.Thread.run(Thread.java:479)
    "SunToolkit.PostEventQueue-0" (TID:0xebcb0150, sys_thread_t:0x1738c8, state:CW) prio=5
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:424)
        at sun.awt.PostEventQueue.run(SunToolkit.java:363)
    "AWT-EventQueue-0" (TID:0xebcb0120, sys_thread_t:0x25fb30, state:R) prio=6
        at sun.awt.font.NativeFontWrapper.getGlyphVectorOutline(Native Method)
        at sun.awt.font.StandardGlyphVector.getOutline(StandardGlyphVector.java:306)
        at sun.awt.font.StandardGlyphVector.getOutline(StandardGlyphVector.java:294)
        at Stars3D.drawDemo(Stars3D.java:51)
        at Stars3D.paint(Stars3D.java:31)
        at javax.swing.JComponent.paintWithBuffer(JComponent.java:3510)
        at javax.swing.JComponent._paintImmediately(JComponent.java:3472)
        at javax.swing.JComponent.paintImmediately(JComponent.java:3356)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:366)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:185)
        at javax.swing.SystemEventQueueUtilities.processRunnableEvent(SystemEventQueueUtilities.java:354)
        at javax.swing.SystemEventQueueUtilities.access$0(SystemEventQueueUtilities.java:350)
        at javax.swing.SystemEventQueueUtilities$RunnableTarget.processEvent(SystemEventQueueUtilities.java:391)
        at java.awt.Component.dispatchEventImpl(Component.java:2376)
        at java.awt.Component.dispatchEvent(Component.java:2289)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:258)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:68)
    "Finalizer" (TID:0xebc98320, sys_thread_t:0x69d90, state:CW) prio=8
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:112)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:174)
    "Reference Handler" (TID:0xebc983b0, sys_thread_t:0x65458, state:CW) prio=10
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:424)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:114)
    "Signal dispatcher" (TID:0xebc983e0, sys_thread_t:0x5ec28, state:CW) prio=5
    "Thread-0" (TID:0xebca0480, sys_thread_t:0x268d0, state:CW) prio=5
Monitor Cache Dump:
    java.lang.Class@EBCA53B8/EBD11598: owner "AWT-EventQueue-0" (0x25fb30) 2 entries
    javax.swing.TimerQueue@EBCA5500/EBD6B4E0: <unowned>
        Waiting to be notified:
            "TimerQueue" (0x36f548)
    sun.awt.AWTFinalizer@EBCCB078/EBD630A8: <unowned>
        Waiting to be notified:
            "AWT-Finalizer" (0x49fcb8)
    java.lang.ref.ReferenceQueue$Lock@EBC98338/EBCCDCC0: <unowned>
        Waiting to be notified:
            "Finalizer" (0x69d90)
    sun.awt.PostEventQueue@EBCB0150/EBD42CC8: <unowned>
        Waiting to be notified:
            "SunToolkit.PostEventQueue-0" (0x1738c8)
    sun.awt.ScreenUpdater@EBC9FDB8/EBD7ABD8: <unowned>
        Waiting to be notified:
            "Screen Updater" (0x3c2320)
    java.lang.ref.Reference$Lock@EBC983C0/EBCCD890: <unowned>
        Waiting to be notified:
            "Reference Handler" (0x65458)
Registered Monitor Dump:
    utf8 hash table: <unowned>
    JNI pinning lock: <unowned>
    JNI global reference lock: <unowned>
    BinClass lock: <unowned>
    Class linking lock: <unowned>
    System class loader lock: <unowned>
    Code rewrite lock: <unowned>
    Heap lock: <unowned>
    Monitor cache lock: owner "AWT-EventQueue-0" (0x25fb30) 1 entry
    Dynamic loading lock: <unowned>
    Monitor IO lock: <unowned>
    User signal monitor: <unowned>
        Waiting to be notified:
            "Signal dispatcher" (0x5ec28)
    Child death monitor: <unowned>
    I/O monitor: owner "AWT-Motif" (0x283f60) 1 entry
    Alarm monitor: <unowned>
        Waiting to be notified:
            <unknown thread> (0x2bbc0)
    Thread queue lock: owner "AWT-EventQueue-0" (0x25fb30) 1 entry
        Waiting to be notified:
            "Thread-0" (0x268d0)
    Monitor registry: owner "AWT-EventQueue-0" (0x25fb30) 1 entry