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Client 3.8.4+ with near cache gets java.lang.UnsupportedOperationException when connected to 3.7.x cluster #11343

alparslanavci opened this issue Sep 12, 2017 · 1 comment


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@alparslanavci alparslanavci commented Sep 12, 2017

When Java client 3.8.4+ is configured with near cache and connects to a 3.7.x cluster, it continously gets the following exception:

Caused by: java.lang.UnsupportedOperationException: Unrecognized client message received with type: 0x142
    at com.hazelcast.client.impl.protocol.task.NoSuchMessageTask.processMessage(
    at com.hazelcast.client.impl.protocol.task.AbstractMessageTask.initializeAndProcessMessage(
    at java.util.concurrent.ThreadPoolExecutor.runWorker(
    at java.util.concurrent.ThreadPoolExecutor$
    at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(
    at ------ submitted from ------.(Unknown Source)
    at com.hazelcast.client.spi.impl.ClientInvocationFuture.resolveAndThrowIfException(
    ... 17 more

The operations are working as expected, but this is exception is thrown continuously.

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@ahmetmircik ahmetmircik commented Sep 12, 2017

Further clarification: this is a new regression in version 3.8.4, 3.8.3 is working as expected, means no exception is thrown.

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