[Bug 1868081] [NEW] Strange behaviors in gij-5 (compared to other JVMs)

[Percy]

Public bug reported:

We are applying differential testing on four JVMs. We modified class
files in several real-world benchmarks and see the different behaviors
of different JVMs. We had found two possible bugs in gij-5.

For one class file, GIJ-5 reports a ClassFormatError, while other JVMs can run it successfully.
For the other one, GIJ-5 throws VerifyError while other JVMs can run it successfully.

Details for reproducing the bug and the class file is posted on
https://github.com/fuzzy000/JVMBugs/tree/master/GIJ-5, we hope that you
can check it out.

** Affects: gcc-5 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1868081

Title:
  Strange behaviors in gij-5 (compared to  other JVMs)

Status in gcc-5 package in Ubuntu:
  New

Bug description:
  We are applying differential testing on four JVMs. We modified class
  files in several real-world benchmarks and see the different behaviors
  of different JVMs. We had found two possible bugs in gij-5.

  For one class file, GIJ-5 reports a ClassFormatError, while other JVMs can run it successfully.
  For the other one, GIJ-5 throws VerifyError while other JVMs can run it successfully.

  Details for reproducing the bug and the class file is posted on
  https://github.com/fuzzy000/JVMBugs/tree/master/GIJ-5, we hope that
  you can check it out.

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