Christoph John created DIRMINA-1118:
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Summary: NPE in SslHandler.checkStatus
Key: DIRMINA-1118
URL: https://issues.apache.org/jira/browse/DIRMINA-1118
Project: MINA
Issue Type: Bug
Reporter: Christoph John
Since some days we receive this NPE on our build server when running tests.
Interestingly this occurs since OpenJDK has been switched from 8.192 to 8.222.
However, it is probably just coincidence.
{code}
<20190810-14:45:11, FIX.4.4:ALFA0->ZULU0, error> (java.lang.NullPointerException
java.lang.NullPointerException
at
org.apache.mina.filter.ssl.SslHandler.checkStatus(SslHandler.java:539)
at
org.apache.mina.filter.ssl.SslHandler.messageReceived(SslHandler.java:374)
at
org.apache.mina.filter.ssl.SslFilter.messageReceived(SslFilter.java:517)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128)
at
org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:122)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:49)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:1128)
at
org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:122)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:650)
at
org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:643)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:539)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor.access$1200(AbstractPollingIoProcessor.java:68)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.process(AbstractPollingIoProcessor.java:1222)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.process(AbstractPollingIoProcessor.java:1211)
at
org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:683)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
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)
{code}
https://github.com/apache/mina/blame/2.1.X/mina-core/src/main/java/org/apache/mina/filter/ssl/SslHandler.java#L539
IMHO when polling a queue then NULL can also be returned.
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