We have encountered a problem with a graphics application employing both
the 1.1.3 and 1.1.4 JDK running on Windows 95. We're not sure of the exact
cause, but at random points in the application, we are informed that "Java
caused an invalid page fault in kernel32.dll".

Here is the dump data:

   JAVA caused an invalid page fault in
   module KERNEL32.DLL at 0137:bff9a07c.
   Registers:
   EAX=02ecf920 CS=0137 EIP=bff9a07c EFLGS=00000246
   EBX=00000000 SS=013f ESP=02ecf91c EBP=02ecf970
   ECX=007af230 DS=013f ESI=00000000 FS=300f
   EDX=000000cc ES=013f EDI=007af26c GS=0000
   Bytes at CS:EIP:
   5e 8b e5 5d c2 10 00 64 a1 00 00 00 00 55 8b ec
   Stack dump:
   007af26c c0000005 00000000 00000000 bff9a07c
   00000000 02ecf974 bff9d1fd 00000001 00000000
   00000026 00000016 0000000b 00000064 bff9ac4c
   02ecf964

Here is some other information about the platform (although we have
reproduced the problem on several Pentium computers employing Windows95):
   Windows 95 Version 4.00.950
   Pentium 64.0MB RAM
   Java JDK 1.1.3

Apparently, we're not the only people who have had this problem. I have
seen other instances of this problem reported in the newsgroups. All seem
to point to a Windows95 platform. We have been unable to reproduce the
problem on a Windows NT platform.



The above problem occurs even when using JDK 1.1.5.




   Ravi,

Here's the piece of code we are getting the "Java caused an invalid page
fault error in
kernel32.dll" in. We finally were able to reproduce the failure by calling
the following method
a few times. We're basically adding and removing the same bean to another
base frame bean
on demand and the following method is the one that gets called at
"removing" time.

The precise line where the page fault occurs is the following:
     container.remove((Component) beanInfo.m_BedrockBeanIfc);

Let me know if this information is helpful for you to reproduce the error.

Thanks for your time,

Jose' Vega
###@###.###
512.491.2625

-------------------------------------------------------- Sample Code
Included --------------------------------------------------------

/* Method causing Page Fault */
 public synchronized void destroyBean(String beanName)
    { // begin destroyBean()
        try
        {
            BeanInfo beanInfo = (BeanInfo)
m_hashtableBeans.remove(beanName);
            if ( beanInfo.m_strBeanAttachedTo != null )
            {
                if ( beanInfo.m_strBeanAttachedTo.length() > 0 )
                {
                    BeanInfo beanInfoAttached =
(BeanInfo)m_hashtableBeans.get(beanInfo.m_strBeanAttachedTo);
                    Container container = (Container)
beanInfoAttached.m_BedrockBeanIfc;

-------------->>>>>>> container.remove((Component)
beanInfo.m_BedrockBeanIfc);
-------------->>>> IT NEVER RETURNS FROM THIS CALL AND SOMETIMES IT EVEN
LOCKS
-------------->>>> THE MACHINE.
                }
            }
            beanInfo.m_BedrockBeanIfc.destroyBean();
        }
        catch( NullPointerException e)
        {
            e.printStackTrace();

        }
    }; // end destroyBean()