This is the message and stacktrace:
User limit of inotify watches reached
java.io.IOException: User limit of inotify watches reached
at sun.nio.fs.LinuxWatchService$Poller.implRegister(LinuxWatchService.java:264)
at sun.nio.fs.AbstractPoller.processRequests(AbstractPoller.java:260)
at sun.nio.fs.LinuxWatchService$Poller.run(LinuxWatchService.java:329)
at java.lang.Thread.run(Thread.java:745)