java.util.ConcurrentModificationException

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    • java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(Unknown Source) at java.util.HashMap$KeyIterator.next(Unknown Source) at net.sf.robocode.io.URLJarCollector.closeJarURLConnection(URLJarCollector.java:152) at net.sf.robocode.io.URLJarCollector.gc(URLJarCollector.java:106) at net.sf.robocode.battle.BaseBattle.cleanup(BaseBattle.java:160) at net.sf.robocode.battle.Battle.cleanup(Battle.java:362) at net.sf.robocode.battle.BaseBattle.run(BaseBattle.java:231)

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