I am using spring 1.2.6 for our application, i am getting the following exception while retriving jsp page using java 1.6
“java.lang.ClassCastException: org.apache.commons.collections.map.LinkedMap cannot be cast to java.util.HashMap”

I am using HashMap in JSP and in java class.same cade was working fine with java 5 when we used java 6 we got ClassCastException.

can any one help why it worked with java 5 and not working with java 6.

I don’t want to go as far as raising a JIRA task but maybe I’ll just post something to the Spring Forums.

Thanks again…

Spring does not have a hard dependency on the commons collections classes. What you are seeing is just DEBUG level messages… if you have a look at the source code for the CollectionFactory class (which calls into the ClassUtils class), you will see that Spring attempts to use the ‘best’ Collection implementation that it can find based on the JVM version and what is available on the classpath.

http://static.springframework.org/spring/docs/1.2.x/api/org/springframework/core/CollectionFactory.html

In short, you can safely ignore these DEBUG messages. Alternatively, you can raise a JIRA issue… historically Juergen has been quick to tone down Spring’s sometimes excessive logging in response to such issues being raised.

Cheers
Rick

As for commons-collections, no clue. I really wouldn’t be surprised though.

Thanks,
James