GitHub user Leemoonsoo opened a pull request:
https://github.com/apache/zeppelin/pull/2259
Prevent NPE on delete local module cache
### What is this PR for?
Prevent NPE on delete local module cache in HeliumBundleFactory
```
Caused by: java.lang.NullPointerException
at
org.apache.zeppelin.helium.HeliumBundleFactory.deleteYarnCache(HeliumBundleFactory.java:465)
at
org.apache.zeppelin.helium.HeliumBundleFactory.copyFrameworkModulesToInstallPath(HeliumBundleFactory.java:487)
at
org.apache.zeppelin.helium.HeliumBundleFactory.buildPackage(HeliumBundleFactory.java:403)
at org.apache.zeppelin.helium.Helium.enable(Helium.java:314)
at
org.apache.zeppelin.rest.HeliumRestApi.enablePackage(HeliumRestApi.java:193)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:180)
at
org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
... 50 more
```
### What type of PR is it?
Bug Fix
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/Leemoonsoo/zeppelin
prevent_npe_helium_bundle_factory
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2259.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 #2259
----
commit bf14144137bc41d084fd8db35f336cea7000c391
Author: Lee moon soo <m...@apache.org>
Date: 2017-04-18T19:40:01Z
Prevent NPE on delete local module cache
----
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