minor, fix an NPE

Project: http://git-wip-us.apache.org/repos/asf/kylin/repo
Commit: http://git-wip-us.apache.org/repos/asf/kylin/commit/de2f7545
Tree: http://git-wip-us.apache.org/repos/asf/kylin/tree/de2f7545
Diff: http://git-wip-us.apache.org/repos/asf/kylin/diff/de2f7545

Branch: refs/heads/1.5.x-HBase1.x
Commit: de2f75458b3a5d76390173fdd9359eadbcb11764
Parents: 4f32927
Author: lidongsjtu <lid...@apache.org>
Authored: Tue May 3 17:18:10 2016 +0800
Committer: lidongsjtu <lid...@apache.org>
Committed: Tue May 3 17:18:15 2016 +0800

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 .../java/org/apache/kylin/rest/service/DiagnosisService.java  | 7 +++++++
 1 file changed, 7 insertions(+)
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http://git-wip-us.apache.org/repos/asf/kylin/blob/de2f7545/server/src/main/java/org/apache/kylin/rest/service/DiagnosisService.java
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diff --git 
a/server/src/main/java/org/apache/kylin/rest/service/DiagnosisService.java 
b/server/src/main/java/org/apache/kylin/rest/service/DiagnosisService.java
index a354159..b530586 100644
--- a/server/src/main/java/org/apache/kylin/rest/service/DiagnosisService.java
+++ b/server/src/main/java/org/apache/kylin/rest/service/DiagnosisService.java
@@ -63,4 +63,11 @@ public class DiagnosisService extends BasicService {
         jobInfoExtractor.execute(args);
         return jobInfoExtractor.getExportDest();
     }
+
+    public static void main(String args1[]) {
+        String[] args = { "-project", "learn_kylin", "-destDir", 
Files.createTempDir().getAbsolutePath() };
+        logger.info("DiagnosisInfoCLI args: " + args);
+        DiagnosisInfoCLI diagnosisInfoCli = new DiagnosisInfoCLI();
+        diagnosisInfoCli.execute(args);
+    }
 }

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