java.lang.ClassNotFoundException: This exception has no message.


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This exception has no message.

Stack trace

java.lang.ClassNotFoundException
	at net.sf.robocode.host.security.RobotClassLoader.loadRobotMainClass(RobotClassLoader.java:271)
	at net.sf.robocode.host.security.RobotClassLoader.createRobotInstance(RobotClassLoader.java:277)
	at net.sf.robocode.host.proxies.HostingRobotProxy.loadRobotRound(HostingRobotProxy.java:168)
	at net.sf.robocode.host.proxies.HostingRobotProxy.run(HostingRobotProxy.java:209)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
	at java.util.HashMap$KeyIterator.next(HashMap.java:828)
	at net.sf.robocode.host.security.RobotClassLoader.warnIfStaticRobotInstanceFields(RobotClassLoader.java:325)
	at net.sf.robocode.host.security.RobotClassLoader.loadRobotMainClass(RobotClassLoader.java:267)

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