RFR (XS) JDK-8038076: constraint on multianewarray instruction is not checked since class version 50

Christian Tornqvist christian.tornqvist at oracle.com
Fri Apr 11 13:35:38 UTC 2014


Looks good, thanks for fixing this.

Thanks,
Christian

-----Original Message-----
From: hotspot-runtime-dev [mailto:hotspot-runtime-dev-bounces at openjdk.java.net] On Behalf Of Lois Foltan
Sent: Friday, April 11, 2014 9:19 AM
To: hotspot-runtime-dev
Subject: RFR (XS) JDK-8038076: constraint on multianewarray instruction is not checked since class version 50

Hello,

Please review the following fix:

Webrev:
       http://cr.openjdk.java.net/~lfoltan/bug_jdk8038076/

Bug: constraint on multianewarray instruction is not checked since class version 50
https://bugs.openjdk.java.net/browse/JDK-8038076

Summary of fix:
The incorrect placement of a post increment operator was causing the calculated dimensions of a multianewarray bytecode to be 1 greater than reality.  The end result of this bug was that a VerifyError would not be correctly generated if the multianewarray bytecode contained an array type descriptor that was 1 dimension smaller than the number of dimensions specified.  Thank you to Christian Tornqvist for writing the test case included.

Tests:
       - jtreg hotspot/test/*, JDK java.lang & java.util, vm.quick.testlist, JCK lang tests
       - JCK vm in progress

Thank you,
Lois



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