java.io.IOException: Too many open files

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java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:145)
at com.sun.grizzly.TCPSelectorHandler.onAcceptInterest(TCPSelectorHandler.java:768)
at com.sun.grizzly.SelectorHandlerRunner.handleSelectedKey(SelectorHandlerRunner.java:295)
at com.sun.grizzly.SelectorHandlerRunner.handleSelectedKeys(SelectorHandlerRunner.java:258)
at com.sun.grizzly.SelectorHandlerRunner.doSelect(SelectorHandlerRunner.java:195)
at com.sun.grizzly.SelectorHandlerRunner.run(SelectorHandlerRunner.java:130)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)

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