[jboss-jira] [JBoss JIRA] (JASSIST-160) Java.lang.VerifyErrors occur in specific cases when using javaassist with Java 1.7

[Shigeru Chiba (JIRA)]

     [ https://issues.jboss.org/browse/JASSIST-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shigeru Chiba updated JASSIST-160:
----------------------------------

    Comment: was deleted

(was: A stackmap-related bug in Hibernate has been discussed at Javassist-163.)

    
> Java.lang.VerifyErrors occur in specific cases when using javaassist with Java 1.7
> ----------------------------------------------------------------------------------
>
>                 Key: JASSIST-160
>                 URL: https://issues.jboss.org/browse/JASSIST-160
>             Project: Javassist
>          Issue Type: Bug
>    Affects Versions: 3.16.1-GA
>         Environment: jdk1.7.0_03 on Windows XP SP 3
>            Reporter: Avner Singerman
>            Assignee: Shigeru Chiba
>             Fix For: 3.17.0-GA
>
>         Attachments: jatest.zip
>
>
> We found at least two different cases where inserting bytecode using javaassist results in a class that cannot be loaded with Java 1.7.
> java.lang.VerifyError: Inconsistent stackmap frames at branch target
> java.lang.VerifyError: Bad return type in method
> The exact same code injection on the exact same classes works fine with Java 1.6.
> We upgraded to the latest version of javaassist - 3.16.1.GA, but it didn't solve the problem.
> I'm attaching to this bug a self contained example where you can see both type of errors. 
> More details in "Steps to Reproduce".

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