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ASF subversion and git services commented on KYLIN-3836: -------------------------------------------------------- Commit 7ca653e3be25394a380bd3cb159410099a111584 in kylin's branch refs/heads/2.5.x from chao long [ https://gitbox.apache.org/repos/asf?p=kylin.git;h=7ca653e ] KYLIN-3836 fix Kylin StringUtil.join() may cause NPE if iterator is empty > Kylin StringUtil.join() may cause NPE if iterator is empty > ---------------------------------------------------------- > > Key: KYLIN-3836 > URL: https://issues.apache.org/jira/browse/KYLIN-3836 > Project: Kylin > Issue Type: Bug > Reporter: Chao Long > Assignee: Chao Long > Priority: Major > Fix For: v2.6.1 > > > {code} > public static String join(Iterable<String> parts, String separator) { > StringBuilder buf = new StringBuilder(); > Iterator<String> iterator = parts.iterator(); > if (iterator == null || (!iterator.hasNext())) { > return null; > } > {code} > org.apache.kylin.job.exception.ExecuteException: > org.apache.kylin.job.exception.ExecuteException: > java.lang.NullPointerException > at > org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183) > at > org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > Caused by: org.apache.kylin.job.exception.ExecuteException: > java.lang.NullPointerException > at > org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:183) > at > org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71) > at > org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168) > ... 4 more > Caused by: java.lang.NullPointerException > at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191) > at com.google.common.base.Splitter.split(Splitter.java:383) > at org.apache.kylin.common.util.StringUtil.splitAndTrim(StringUtil.java:181) > at > org.apache.kylin.source.hive.GarbageCollectionStep.getIntermediateTables(GarbageCollectionStep.java:95) > at > org.apache.kylin.source.hive.GarbageCollectionStep.cleanUpIntermediateFlatTable(GarbageCollectionStep.java:62) > at > org.apache.kylin.source.hive.GarbageCollectionStep.doWork(GarbageCollectionStep.java:48) > at > org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:168) > ... 6 more -- This message was sent by Atlassian JIRA (v7.6.3#76005)