RFR(XS) 8242787: sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java fails with sun.jvm.hotspot.types.WrongTypeException

[Chris Plummer]

Hello,

Please review the following:

https://bugs.openjdk.java.net/browse/JDK-8242787
http://cr.openjdk.java.net/~cjplummer/8242787/webrev.00/index.html

After fixing JDK-8230731 [1], this test still failed, this time with a 
WrongTypeException. The issue is basically the same one as was just 
fixed in JDK-8235220 [2]. With CDS on you sometimes get a 
WrongTypeException instead of an AddressException, so in some places 
code that allows an AddressException needs to also allow a 
WrongTypeException.

Note that fixing this issue then exposes JDK-8242789 [3], which I'll be 
fixing next, so the problem list entry changed from JDK-8242787 to 
JDK-8242789.

I also did a bit of cleaning up of some debugging code. During my 
debugging session I set DEBUG = true to get some extra debugging output, 
and suddenly a lot of tests were failing with a RuntimeException. This 
is because of the debugging code I've now stripped out. It decided to 
convert an acceptable failure type (UnknownOopException) into one that 
the outer try/catch would not catch (RuntimeException). 
UnknownOopException is not suppose to cause iterateLiveRegions() to abort.

https://bugs.openjdk.java.net/browse/JDK-8230731
https://bugs.openjdk.java.net/browse/JDK-8235220
https://bugs.openjdk.java.net/browse/JDK-8242789

thanks,

Chris