Jiri Formanek created AMQ-8220:
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             Summary: Compatibility issue of 5.16.1 with Java 16
                 Key: AMQ-8220
                 URL: https://issues.apache.org/jira/browse/AMQ-8220
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.16.1
            Reporter: Jiri Formanek


After switch to new Java version 16 ActiveMQ stopped to work. Better said 
broker network stopped to work. Connections to other servers is opened and 
immediately stopped because of following error (that is repeating again and 
again);
{quote}2021-04-08 13:11:21,198 | INFO | Network connection between 
vm://localhost#74736 and HTTP Reader https://rsas8.kstm.labornetz.net:1043 
(localhost) has been established. | 
org.apache.activemq.network.DemandForwardingBridgeSupport | 
triggerStartAsyncNetworkBridgeCreation: remoteBroker=HTTP Reader 
https://rsas8.kstm.labornetz.net:1043, localBroker= vm://localhost#74736
2021-04-08 13:11:21,212 | WARN | Network connection between 
vm://localhost#74736 and HTTP Reader https://rsas8.kstm.labornetz.net:1043 
shutdown due to a remote error: 
com.thoughtworks.xstream.converters.ConversionException: No converter available
---- Debugging information ----
message : No converter available
type : java.util.concurrent.atomic.AtomicLong
converter : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
message[1] : Unable to make field private static final long 
java.util.concurrent.atomic.AtomicLong.serialVersionUID accessible: module 
java.base does not "opens java.util.concurrent.atomic" to unnamed module 
@29caf222
------------------------------- | 
org.apache.activemq.network.DemandForwardingBridgeSupport | 
triggerStartAsyncNetworkBridgeCreation: remoteBroker=HTTP Reader 
https://rsas8.kstm.labornetz.net:1043, localBroker= vm://localhost#74736
2021-04-08 13:11:21,213 | WARN | Network connection between 
vm://localhost#74736 and HTTP Reader https://rsas8.kstm.labornetz.net:1043 
shutdown due to a remote error: java.io.IOException: Failed to perform GET on: 
https://rsas8.kstm.labornetz.net:1043 as response was: 
HttpResponseProxy\{HTTP/1.1 500 Internal Server Error [Date: Thu, 08 Apr 2021 
11:11:21 GMT, Server: Jetty(9.4.35.v20201120), Strict-Transport-Security: 
max-age=31536000; includeSubDomains, Vary: Accept-Encoding,User-Agent, 
X-XSS-Protection: 1; mode=block, X-Frame-Options: DENY, Connection: close, 
Content-Type: text/html] 
org.apache.http.client.entity.DecompressingEntity@735e13b5} | 
org.apache.activemq.network.DemandForwardingBridgeSupport | ActiveMQ Transport: 
HTTP Reader https://rsas8.kstm.labornetz.net:1043
2021-04-08 13:11:21,214 | INFO | Connector vm://localhost stopped | 
org.apache.activemq.broker.TransportConnector | ActiveMQ 
BrokerService[localhost] Task-1044
2021-04-08 13:11:21,214 | INFO | localhost bridge to localhost stopped | 
org.apache.activemq.network.DemandForwardingBridgeSupport | ActiveMQ 
BrokerService[localhost] Task-1044
{quote}
It seems that is incompatibility with Java 16 especially this message:

{{Unable to make field private static final long 
java.util.concurrent.atomic.AtomicLong.serialVersionUID accessible: module 
java.base does not "opens java.util.concurrent.atomic" to unnamed module 
@29caf222}}

 

 

 



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