> Classfile API didn't handle transformations of class files version 50 and 
> below correctly. 
> 
> Proposed fix have two parts: 
> 1. Inflation of branch targets does not depend on StackMapTable attribute 
> presence for class file version 50 and below. Alternative fallback 
> implementation is provided. 
> 2. StackMapTable attribute is not generated for class file versions below 50.
> 
> StackMapsTest is also extended to test this patch.
> 
> Please review.
> 
> Thanks,
> Adam

Adam Sotona has updated the pull request incrementally with one additional 
commit since the last revision:

  implemented StackCounter

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13478/files
  - new: https://git.openjdk.org/jdk/pull/13478/files/dfea3cde..3d74c2fd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13478&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13478&range=04-05

  Stats: 544 lines in 5 files changed: 416 ins; 7 del; 121 mod
  Patch: https://git.openjdk.org/jdk/pull/13478.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13478/head:pull/13478

PR: https://git.openjdk.org/jdk/pull/13478

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