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https://issues.apache.org/jira/browse/GIRAPH-81?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402471#comment-13402471
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Jakob Homan commented on GIRAPH-81:
-----------------------------------
Looks good, but I'm getting an NPE when I try to run it:
{noformat}$ bin/giraph giraph-0.2-SNAPSHOT.jar -la
No HADOOP_CONF_DIR set, using /export/apps/hadoop/latest/conf
Exception in thread "main" java.lang.NullPointerException
at
org.apache.giraph.utils.AnnotationUtils.addAll(AnnotationUtils.java:71)
at
org.apache.giraph.utils.AnnotationUtils.getAnnotatedClasses(AnnotationUtils.java:55)
at
org.apache.giraph.GiraphRunner.printSupportedAlgorithms(GiraphRunner.java:101)
at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:132)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:221)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
{noformat}
Could this be related to GIRAPH-205?
> Create annotations on provided algorithms for cli
> -------------------------------------------------
>
> Key: GIRAPH-81
> URL: https://issues.apache.org/jira/browse/GIRAPH-81
> Project: Giraph
> Issue Type: New Feature
> Reporter: Jakob Homan
> Assignee: Maja Kabiljo
> Attachments: GIRAPH-81.patch
>
>
> As discussed in GIRAPH-64, it would be nice if the built-in algorithms that
> ship with Giraph were displayed from cli (ala Mahout) so that users can see
> what's available. Also, it was suggested that it would be good to use
> annotations for these to ease in documentation. This sounds like a good
> approach.
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