Failing to connect MQ with java 11 - ibm-mq

Question

After upgrading to JDK 11 from JDK 8 and MQ 9.2.0.5 (from 9.2.0.4), i'm getting the below error when trying to open JMS connection.
I'm running on WLS 14.
I also upgraded allclient.jar to 9.2.0.5.
I tried running it with previous MQ (9.2.0.4) which worked fine with java 8, i get the same issue.
Same code works fine with MQ 9.2.0.4, JDK 8 and WLS 12.
I verified that method exists in jar and verified no other versions of allclient jars exists.
com.ibm.mq.jmqi.JmqiException: CC=2;RC=2195;AMQ9546: Error return code
received.
[1=java.lang.NoSuchMethodException[com.ibm.mq.jmqi.remote.api.RemoteFAP.(com.ibm.mq.jmqi.JmqiEnvironment,
int)],3=Class.getConstructor0]
at com.ibm.mq.jmqi.JmqiEnvironment.getInstance(JmqiEnvironment.java:857)
at com.ibm.mq.jmqi.JmqiEnvironment.getMQI(JmqiEnvironment.java:702)
at com.ibm.msg.client.wmq.factories.WMQConnectionFactory.createV7ProviderConnection(WMQConnectionFactory.java:8437)
at com.ibm.msg.client.wmq.factories.WMQConnectionFactory.createProviderConnection(WMQConnectionFactory.java:7815)
at com.ibm.msg.client.jms.admin.JmsConnectionFactoryImpl._createConnection(JmsConnectionFactoryImpl.java:322)
at com.ibm.msg.client.jms.admin.JmsConnectionFactoryImpl.createConnection(JmsConnectionFactoryImpl.java:242)
at com.ibm.mq.jms.MQConnectionFactory.createCommonConnection(MQConnectionFactory.java:6026)
at com.ibm.mq.jms.MQConnectionFactory.createConnection(MQConnectionFactory.java:6086)
at org.springframework.jms.connection.UserCredentialsConnectionFactoryAdapter.doCreateConnection(UserCredentialsConnectionFactoryAdapter.java:188)
at . Caused by: java.lang.NoSuchMethodException: com.ibm.mq.jmqi.remote.api.RemoteFAP.(com.ibm.mq.jmqi.JmqiEnvironment,
int)
at java.base/java.lang.Class.getConstructor0(Class.java:3349)
at java.base/java.lang.Class.getConstructor(Class.java:2151)
at com.ibm.mq.jmqi.JmqiEnvironment.getInstance(JmqiEnvironment.java:764)

Answer 1

Remove if you have com.ibm.* related packages in prefer-application-packages section in weblogic.xml.

Answer 2

I just ran a couple of Java/JMS applications using OpenJDK 11 and they ran fine. I agree with Doug Grove that you probably have a mismatch of MQ JAR files.
Add the following line to your code and then update your question with the output:
System.out.println("java.class.path="+System.getProperty("java.class.path"));
If you want to get fancy then you can do:
if (null != System.getProperty("java.class.path"))
{
if (System.getProperty("os.name").startsWith("Windows"))
System.out.println("java.class.path=\n"+(System.getProperty("java.class.path")).replace(';', '\n'));
else
System.out.println("java.class.path\n="+(System.getProperty("java.class.path")).replace(':', '\n'));
}