GitHub user StephanEwen opened a pull request:
https://github.com/apache/flink/pull/1008
[FLINK-2509] Add class loader info to exception message when user code
classes are not found
This pull request adds the following type of info to the exception message:
```
Cannot load user class: com.foo.bar.SomeClass
ClassLoader info: URL ClassLoader: --
http://localhost:26712/some/file/path -- file:
'/tmp/flink-url-test2825910185710886145.tmp' (valid JAR) -- file:
'/tmp/flink-url-test4914469684250387785.tmp' (invalid JAR: error in opening zip
file) -- file: '/tmp/flink-url-test5462325335282720117.tmp' (missing)
```
This should help diagnosing why sometimes classes cannot be resolved, even
though the JAR files seem valid.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/StephanEwen/incubator-flink class_loader_info
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1008.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1008
----
commit 00e123709f304bd7f602989f28b111b8d282ebb1
Author: Stephan Ewen <[email protected]>
Date: 2015-08-11T14:07:22Z
[FLINK-2509] [runtime] Add class loader info into the exception message
when user code classes are not found.
----
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