I get "Cannot access org.apache.activemq.ActiveMQConnectionFactory" error, When I upgraded-CodePudding

I upgraded activemq-all version from 5.16.3 to 5.17.2. When I run the application, I get this error:

java: cannot access org.apache.activemq.ActiveMQConnectionFactory
  bad class file: /E:/<username>/.m2/repository/org/apache/activemq/activemq-all/5.17.2/activemq-all-5.17.2.jar!/org/apache/activemq/ActiveMQConnectionFactory.class
    class file has wrong version 55.0, should be 52.0
    Please remove or make sure it appears in the correct subdirectory of the classpath.

And when I run maven build also:

cannot access org.apache.activemq.ActiveMQConnectionFactory

Please help. Thank you.

CodePudding user response：

You need Java 11 to use ActiveMQ "Classic" 5.17.x. Note that the download page on the ActiveMQ website says this about 5.17.2:

Java compatibility: 11

You apparently are using Java 8 still which is why you're getting this error:

class file has wrong version 55.0, should be 52.0

If you can't upgrade your version of Java you should continue using 5.16.x.