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From: Andreas Leitgeb <avl@logic.at>
Newsgroups: comp.lang.java.programmer
Subject: Re: Rabbit MQ JMS Client 2.3.0, JMS Queue connection error javax.naming.NoInitialContextException: Cannot instantiate class: com.rabbitmq.jms.admin.RMQObjectFactory [Root exception is java.lang.ClassCastException: com.rabbitmq.jms.admin.RMQObjectFactory
Date: Tue, 1 Feb 2022 11:52:18 -0000 (UTC)
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Surendra K <kvsbasis@gmail.com> wrote:
> javax.naming.NoInitialContextException: Cannot instantiate
> class: com.rabbitmq.jms.admin.RMQObjectFactory [Root exception is
> java.lang.ClassCastException: com.rabbitmq.jms.admin.RMQObjectFactory
> (loaded by library:com.sap.aii.adapter.lib.jms20@69499
> com.sap.engine.boot.loader.ResourceMultiParentClassLoader) cannot be
> cast to javax.naming.spi.InitialContextFactory (loaded by <bootstrap>)]"

Looks like you configured "com.rabbitmq.jms.admin.RMQObjectFactory" as 
value for some property within the application-context, but that property
should have the name of a different class.

The the correct class's name likely ends with *ContextFactory, rather
than with *ObjectFactory.

You might open the rabbitMQ-jarfile as a zip-file and list its contents.
Maybe some class in it even has a name like "RMQContextFactory".