I am trying to maintain some old code that I wrote back in 2008 and import the current 1.0.3 ical4j version.
At runtime it fails with:
Exception in thread "main" java.lang.NoClassDefFoundError: edu/emory/mathcs/backport/java/util/concurrent/ConcurrentHashMap
Caused by: java.lang.ClassNotFoundException: edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap
at java.security.AccessController.doPrivileged(Native Method)
... 5 more
I can't remember how I built this before, but now I am using Eclipse.
Can anyone help me understand what I need to do?
sorry, I was being a bit thick! I have it now.
I need to add the other external JARs to my build/run classpath.
Thanks for reading this far,
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