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https://issues.apache.org/jira/browse/HDFS-11954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16043424#comment-16043424
]
John Zhuge commented on HDFS-11954:
-----------------------------------
On branch-2, {{TestClientProtocolWithDelegationToken.testDelegationTokenRpc}}
NPE:
{noformat}
testDelegationTokenRpc(org.apache.hadoop.hdfs.security.TestClientProtocolWithDelegationToken)
Time elapsed: 3.241 sec <<< ERROR!
java.lang.NullPointerException: null
at
org.apache.hadoop.ipc.WritableRpcEngine$Invocation.toString(WritableRpcEngine.java:185)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at org.apache.hadoop.ipc.Client$Connection$3.run(Client.java:1114)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{noformat}
And {{TestClientToAMTokens}} NPE:
{noformat}
<testcase name="testClientToAMTokens"
classname="org.apache.hadoop.yarn.server.resourcemanager.security.TestClientToAMTokens"
time="5.759">
<error
type="java.lang.NullPointerException:">java.lang.NullPointerException: null
at
org.apache.hadoop.ipc.WritableRpcEngine$Invocation.toString(WritableRpcEngine.java:185)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at org.apache.hadoop.ipc.Client$Connection$3.run(Client.java:1114)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{noformat}
> WritableRpcEngine.Invocation#toString should handle null parameters
> -------------------------------------------------------------------
>
> Key: HDFS-11954
> URL: https://issues.apache.org/jira/browse/HDFS-11954
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.8.0
> Reporter: John Zhuge
> Assignee: John Zhuge
> Priority: Minor
>
> WritableRpcEngine.Invocation#toString will throw NPE if {{parameters}} is
> null:
> {code:title=WritableRpcEngine.Invocation#toString}
> buffer.append(methodName);
> buffer.append("(");
> for (int i = 0; i < parameters.length; i++) {
> if (i != 0)
> buffer.append(", ");
> buffer.append(parameters[i]);
> }
> buffer.append(")");
> {code}
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