I have created a Perl module to provide an interface with the RNG-processing Java library [Jing](https://code.google.com/p/jing-trang/). The code is located [here](https://github.com/byutrg/XML-Jing). I use `[Inline::Java][3]` to compile and load a small class which utilizes `jing.jar`, both located in the `java` directory, which is shared via `[File::ShareDir][4]`. Running `prove -vl` or `dzil test`, the module works perfectly fine, and the tests all pass:

```
>prove -vl
t\0-use.t .............
1..1
ok 1 - use XML::Jing;
ok
t\01-validates_xml.t ..
1..3
ok 1 - successfully reads a valid RNG
ok 2 - returns nothing when XML file is valid
ok 3
ok
t\02-exceptions.t .....
1..5
ok 1 - warning for nonexistent RNG file
ok 2 - constructor returns nothing for non-existent RNG file
ok 3 - warning for bad RNG file
ok 4 - constructor returns nothing for bad RNG file
ok 5 - warning for nonexistent XML file
ok
All tests successful.
Files=3, Tests=9,  6 wallclock secs ( 0.11 usr +  0.05 sys =  0.16 CPU)
Result: PASS

```

Tests also pass when a distro is built using `dzil build`:

```
dzil build
cd XML-Jing-0.x
perl Build.PL
build
build test

```

However, using `dzil release`, Inline::Java croaks when it tries to load jing.jar. We get these crazy errors below:

```
BEGIN failed--compilation aborted at t/01-validates_xml.t line 5.
t/01-validates_xml.t ..........
Dubious, test returned 1 (wstat 256, 0x100)
No subtests run

A problem was encountered while attempting to compile and install your InlineJava code. The command that failed was:
  "C:\Program Files\Java\jdk1.7.0_21\bin\javac.exe" -deprecation  -d "C:\strawberry\cpan\build\XML-Jing-0.01-Skydfp\_Inline\lib\auto\XML\Jing_706b" RNGValidator.java > cmd.out 2>&1

The build directory was:
C:\strawberry\cpan\build\XML-Jing-0.01-Skydfp\_Inline\build\XML\Jing_706b

The error message was:
error: error reading C:\strawberry\cpan\build\XML-Jing-0.01-Skydfp\blib\lib\auto\share\dist\XML-Jing\jing.jar; invalid END header (bad central directory offset)

```

Currently I load the jar using a begin block to edit the `CLASSPATH` variable:

```
BEGIN{
    use Env::Path;
    my $classpath = Env::Path->CLASSPATH;
    $classpath->Append(path(dist_dir('XML-Jing'),'jing.jar'));
}

```

Using `jarsigner`, I verified that the jar is corrupted in the build folder created by `dzil release` but not in the one created by `dzil build`:

In the build created via `dzil build`:

```
jarsigner -verify java/jing.jar
jar is unsigned. (signatures missing or not parsable)

```

In the build created via `dzil release`:

```
jarsigner -verify java/jing.jar
jarsigner: java.util.zip.ZipException: invalid END header (bad central directory offset)

```

To summarize, `dzil release` clobbers a jar in my shared directory, while `dzil build` does not. Can anyone tell me what I need to do to make this module work properly?