Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/610#issuecomment-42097964
@andrewor14 @aarondav I tried this locally and ran into a bug. The use of
`jar` to read the index of the files doesn't honor `JAVA_HOME`. In my case the
system default is Java 6 whereas JAVA_HOME is set to Java 7. When it tried to
get the index of the jar it failed silently. The actual error was this (related
to the 65k jar limit)
```
java.util.zip.ZipException: invalid CEN header (bad signature)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:132)
at java.util.zip.ZipFile.<init>(ZipFile.java:93)
at sun.tools.jar.Main.list(Main.java:997)
at sun.tools.jar.Main.run(Main.java:242)
at sun.tools.jar.Main.main(Main.java:1167)
```
1. Is there a reason we intentionally swallow stderr from the `jar` command?
2. Could we have the `jar` command respect `JAVA_HOME` similar to in
`spark-class`?
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