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From "Michael Osipov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MSHARED-545) maven-dependency-analyzer fails on classes containing constant long or double
Date Tue, 09 Aug 2016 14:29:20 GMT

     [ https://issues.apache.org/jira/browse/MSHARED-545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Osipov updated MSHARED-545:
-----------------------------------
    Affects Version/s:     (was: maven-dependency-analyzer-1.7)
                       maven-dependency-analyzer-1.6

> maven-dependency-analyzer fails on classes containing constant long or double
> -----------------------------------------------------------------------------
>
>                 Key: MSHARED-545
>                 URL: https://issues.apache.org/jira/browse/MSHARED-545
>             Project: Maven Shared Components
>          Issue Type: Bug
>    Affects Versions: maven-dependency-analyzer-1.6
>            Reporter: Jonathan Haber
>            Assignee: Michael Osipov
>            Priority: Blocker
>             Fix For: maven-dependency-analyzer-1.7
>
>
> The maven-dependency-analyzer was updated to parse the constant pool on each class file
so that it can discover method references and constant references, but the ConstantPoolParser
is missing two critical lines that cause it to throw an exception on any class file containing
a constant long or constant double field. According to the [Javadoc|https://github.com/apache/maven-shared/blob/ca1f714442eb49439a1f184ba8177e7795158b75/maven-dependency-analyzer/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ConstantPoolParser.java#L34],
the class was adapted from [this|http://stackoverflow.com/a/32278587/23691] stack overflow
answer. If you look inside the switch statement at the cases for longs and doubles, it increments
the index. But the ConstantPoolParser is [missing|https://github.com/apache/maven-shared/blob/ca1f714442eb49439a1f184ba8177e7795158b75/maven-dependency-analyzer/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ConstantPoolParser.java#L118-L123]
this increment. This causes it to land [here|https://github.com/apache/maven-shared/blob/ca1f714442eb49439a1f184ba8177e7795158b75/maven-dependency-analyzer/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ConstantPoolParser.java#L95-L96]
and throw an exception on all but the most trivial codebases. In [this|https://github.com/apache/maven-shared/pull/10]
pull request I fixed the bug and updated one of the test classes to have a constant long field
to prevent regressions.



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