Request for reviews (XS): 7180769: assert(tboth->klass_is_exact()) failed: klass should be exact (original) (raw)

Vladimir Kozlov vladimir.kozlov at oracle.com
Fri Jun 29 16:37:44 PDT 2012

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http://cr.openjdk.java.net/~kvn/7180769/webrev

7180769: assert(tboth->klass_is_exact()) failed: klass should be exact

Regression after 7170463 changes. Result of join() with interface class produces non-exact type:

tcon: precise klass java/lang/String: 0x0000000111a57dd8:Constant:exact * tval: Interface:klass org/apache/derby/iapi/store/raw/xact/TransactionId: 0x00000001174cc278 * obj_type: org/apache/derby/iapi/store/raw/xact/TransactionId:NotNull * tboth: org/apache/derby/iapi/store/raw/xact/TransactionId:NotNull *

Use class exactness as part of the condition for class compare optimization instead of assert.

Tested with failed test.

Thanks, Vladimir

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