ConfX created HADOOP-18803:
------------------------------
Summary: ClassCastException in test TestRPC#testWrappedStopProxy
Key: HADOOP-18803
URL: https://issues.apache.org/jira/browse/HADOOP-18803
Project: Hadoop Common
Issue Type: Bug
Components: common, ipc
Reporter: ConfX
Attachments: reproduce.sh
h2. What happened:
In HCommon, test TestRPC#testWrappedStopProxy tries to cast
org.apache.hadoop.ipc.WritableRpcEngine$Invoker to
org.apache.hadoop.ipc.TestRPC$StoppedInvocationHandler and causes
ClassCastException.
h2. Buggy code:
In TestRPC.java:
{code:java}
@Test
public void testWrappedStopProxy() throws IOException {
StoppedProtocol wrappedProxy = RPC.getProxy(StoppedProtocol.class,
StoppedProtocol.versionID, null, conf);
StoppedInvocationHandler invocationHandler = (StoppedInvocationHandler) //
<--- Here causes ClassCastException
Proxy.getInvocationHandler(wrappedProxy);
...
} {code}
h2. How to reproduce:
(1) Just directly run test TestRPC#testWrappedStopProxy.
You can use the reproduce.sh in the attachment to easily reproduce the bug:
We are happy to provide a patch if this issue is confirmed.
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