Bug : On IA Solaris 2.7, Segmentation violation error is occuring in JDK1.4.0beta-b22, while rendering images.
          
Error : Segmentation Violation Error
Platform: IA Solaris 2.7
JDK : Merlin-beta (JDK1.4.0beta-b22)

The above failure occurs when images are rendered using the following combination.

Color Model : 8-bit Index ColorModel, Gray Index ColorModel
Transparency: Bitmask Colormodel, Bitmask Colormodel with background
Scaling applied : no scaling, upscale (1.5x), downscale(0.5x)

Error details:
SIGSEGV 11* segmentation violation
    si_signo [11]: SIGSEGV 11* segmentation violation
    si_errno [0]: Error 0
    si_code [1]: SEGV_MAPERR [addr: 0x7FEC]

        stackpointer=dac07760

Full thread dump Classic VM (1.4.0beta-b22, native threads):
    "Thread-0" (TID:0xdc08e818, sys_thread_t:0x804e500, state:CW, native ID:0x1) prio=5
    "Screen Updater" (TID:0xdc08ebb0, sys_thread_t:0x8707158, state:CW, native ID:0xc) prio=5
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at sun.awt.ScreenUpdater.nextEntry(ScreenUpdater.java:77)
        at sun.awt.ScreenUpdater.run(ScreenUpdater.java:96)
    "AWT-EventQueue-0" (TID:0xdc0cadf0, sys_thread_t:0x8609750, state:R, native ID:0xa) prio=6
        at sun.java2d.loops.BlitBg.BlitBg(Native Method)
        at sun.java2d.SunGraphics2D.renderImage(SunGraphics2D.java:2605)
        at sun.java2d.SunGraphics2D.renderImage(SunGraphics2D.java:2563)
        at sun.java2d.SunGraphics2D.renderingPipeImage(SunGraphics2D.java:2394)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2093)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:1951)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2788)
        at sun.awt.image.ImageRepresentation.drawToBufImage(ImageRepresentation.java:748)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2802)
        at DrawImageTest.repeatCurrentTest(DrawImageTest.java:580)
        at DrawImageTest.warmUp(DrawImageTest.java:490)
        at J2DTest.benchmark(J2DTest.java:152)
        at J2DBench.runTestSequences(J2DBench.java:242)
        at J2DBench$MainPanel.actionPerformed(J2DBench.java:463)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1477)
        at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1531)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:379)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:251)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:216)
        at java.awt.Component.processMouseEvent(Component.java:4005)
        at java.awt.Component.processEvent(Component.java:3831)
        at java.awt.Container.processEvent(Container.java:1180)
        at java.awt.Component.dispatchEventImpl(Component.java:2737)
        at java.awt.Container.dispatchEventImpl(Container.java:1229)
        at java.awt.Component.dispatchEvent(Component.java:2628)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2485)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2230)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2138)
        at java.awt.Container.dispatchEventImpl(Container.java:1216)
        at java.awt.Window.dispatchEventImpl(Window.java:933)
        at java.awt.Component.dispatchEvent(Component.java:2628)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:355)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:127)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:117)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:96)
    "AWT-Motif" (TID:0xdc0b7378, sys_thread_t:0x85499a8, state:R, native ID:0x8) prio=5
        at sun.awt.motif.MToolkit.run(Native Method)
        at java.lang.Thread.run(Thread.java:488)
    "AWT-Shutdown" (TID:0xdc0b74e8, sys_thread_t:0x852c220, state:CW, native ID:0x7) prio=5
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:262)
        at java.lang.Thread.run(Thread.java:488)
    "Finalizer" (TID:0xdc099528, sys_thread_t:0x8096af0, state:CW, native ID:0x6) prio=8
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:108)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:123)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:162)
    "Reference Handler" (TID:0xdc099300, sys_thread_t:0x808bdf8, state:CW, native ID:0x5) prio=10
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:110)
    "Signal dispatcher" (TID:0xdc099330, sys_thread_t:0x8091458, state:CW, native ID:0x4) prio=5
Monitor Cache Dump:
    java.lang.Object@DC0A9B30/DC119558: <unowned>
        Waiting to be notified:
            "AWT-Shutdown" (0x852c220)
    sun.awt.ScreenUpdater@DC08EBB0/DC162C90: <unowned>
        Waiting to be notified:
            "Screen Updater" (0x8707158)
    java.lang.Class@DC0B6230/DC145898: owner "AWT-EventQueue-0" (0x8609750) 1 entry
    java.lang.ref.ReferenceQueue$Lock@DC099540/DC0CF370: <unowned>
        Waiting to be notified:
            "Finalizer" (0x8096af0)
    java.lang.ref.Reference$Lock@DC099310/DC0CEE90: <unowned>
        Waiting to be notified:
            "Reference Handler" (0x808bdf8)
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" (0x8609750) 1 entry
    Thread queue lock: owner "AWT-EventQueue-0" (0x8609750) 1 entry
        Waiting to be notified:
            "Thread-0" (0x804e500)
    Monitor registry: owner "AWT-EventQueue-0" (0x8609750) 1 entry

SIGABRT 6* abort (generated by abort(3) routine)
    si_signo [6]: SIGABRT 6* abort (generated by abort(3) routine)
    si_errno [0]: Error 0
    si_code [-1]: SI_LWP [pid: 8097, uid: 111638]
        stackpointer=dac07234

Full thread dump Classic VM (1.4.0beta-b22, native threads):
    "Thread-0" (TID:0xdc08e818, sys_thread_t:0x804e500, state:CW, native ID:0x1) prio=5
    "Screen Updater" (TID:0xdc08ebb0, sys_thread_t:0x8707158, state:CW, native ID:0xc) prio=5
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at sun.awt.ScreenUpdater.nextEntry(ScreenUpdater.java:77)
        at sun.awt.ScreenUpdater.run(ScreenUpdater.java:96)
    "AWT-EventQueue-0" (TID:0xdc0cadf0, sys_thread_t:0x8609750, state:R, native ID:0xa) prio=6
        at sun.java2d.loops.BlitBg.BlitBg(Native Method)
        at sun.java2d.SunGraphics2D.renderImage(SunGraphics2D.java:2605)
        at sun.java2d.SunGraphics2D.renderImage(SunGraphics2D.java:2563)
        at sun.java2d.SunGraphics2D.renderingPipeImage(SunGraphics2D.java:2394)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2093)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:1951)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2788)
        at sun.awt.image.ImageRepresentation.drawToBufImage(ImageRepresentation.java:748)
        at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:2802)
        at DrawImageTest.repeatCurrentTest(DrawImageTest.java:580)
        at DrawImageTest.warmUp(DrawImageTest.java:490)
        at J2DTest.benchmark(J2DTest.java:152)
        at J2DBench.runTestSequences(J2DBench.java:242)
        at J2DBench$MainPanel.actionPerformed(J2DBench.java:463)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1477)
        at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1531)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:379)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:251)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:216)
        at java.awt.Component.processMouseEvent(Component.java:4005)
        at java.awt.Component.processEvent(Component.java:3831)
        at java.awt.Container.processEvent(Container.java:1180)
        at java.awt.Component.dispatchEventImpl(Component.java:2737)
        at java.awt.Container.dispatchEventImpl(Container.java:1229)
        at java.awt.Component.dispatchEvent(Component.java:2628)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2485)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2230)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2138)
        at java.awt.Container.dispatchEventImpl(Container.java:1216)
        at java.awt.Window.dispatchEventImpl(Window.java:933)
        at java.awt.Component.dispatchEvent(Component.java:2628)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:355)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:127)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:117)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:96)
    "AWT-Motif" (TID:0xdc0b7378, sys_thread_t:0x85499a8, state:R, native ID:0x8) prio=5
        at sun.awt.motif.MToolkit.run(Native Method)
        at java.lang.Thread.run(Thread.java:488)
    "AWT-Shutdown" (TID:0xdc0b74e8, sys_thread_t:0x852c220, state:CW, native ID:0x7) prio=5
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:262)
        at java.lang.Thread.run(Thread.java:488)
    "Finalizer" (TID:0xdc099528, sys_thread_t:0x8096af0, state:CW, native ID:0x6) prio=8
        at java.lang.Object.wait(Native Method)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:108)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:123)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:162)
    "Reference Handler" (TID:0xdc099300, sys_thread_t:0x808bdf8, state:CW, native ID:0x5) prio=10
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:420)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:110)
    "Signal dispatcher" (TID:0xdc099330, sys_thread_t:0x8091458, state:CW, native ID:0x4) prio=5
Monitor Cache Dump:
    java.lang.Object@DC0A9B30/DC119558: <unowned>
        Waiting to be notified:
            "AWT-Shutdown" (0x852c220)
    sun.awt.ScreenUpdater@DC08EBB0/DC162C90: <unowned>
        Waiting to be notified:
            "Screen Updater" (0x8707158)
    java.lang.Class@DC0B6230/DC145898: owner "AWT-EventQueue-0" (0x8609750) 1 entry
    java.lang.ref.ReferenceQueue$Lock@DC099540/DC0CF370: <unowned>
        Waiting to be notified:
            "Finalizer" (0x8096af0)
    java.lang.ref.Reference$Lock@DC099310/DC0CEE90: <unowned>
        Waiting to be notified:
            "Reference Handler" (0x808bdf8)
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" (0x8609750) 1 entry
    Thread queue lock: owner "AWT-EventQueue-0" (0x8609750) 1 entry
        Waiting to be notified:
            "Thread-0" (0x804e500)
    Monitor registry: owner "AWT-EventQueue-0" (0x8609750) 1 entry

Abort (core dumped)

----------------------------------

How to reproduce the bug:
Set the path to latest merlin-beta build. Type "java J2DBench" at the prompt.
A frame will popup. Click "Test Options" and verify the colormodel and transparency.
All the checkboxes should be selected. Press "OK".
Then click "Bench" button. Check the prompt for the exception . If it is thrown,
then the bug is reproduced.