Hibiscus / Jameica auf einem Raspberry Pi3

[Wed Jan 31 14:35:22 CET 2018][INFO][pool-1-thread-1][de.willuhn.jameica.messaging.NamedConcurrentQueue.deliver] error while processing message
java.rmi.RemoteException: unable to start handler; nested exception is: 
  MultiException[java.lang.OutOfMemoryError: unable to create new native thread, java.util.concurrent.RejectedExecutionException: org.eclipse.jetty.io.ManagedSelector@144adc5 id=0 keys=0 selected=0]
  at de.willuhn.jameica.webadmin.server.HttpServiceImpl.start(HttpServiceImpl.java:182)
  at de.willuhn.jameica.webadmin.server.HttpServiceImpl.addHandler(HttpServiceImpl.java:62)
  at de.willuhn.jameica.webadmin.messaging.DeployMessageConsumer.handleMessage(DeployMessageConsumer.java:96)
  at de.willuhn.jameica.messaging.NamedConcurrentQueue.deliver(NamedConcurrentQueue.java:246)
  at de.willuhn.jameica.messaging.NamedConcurrentQueue.access$000(NamedConcurrentQueue.java:26)
  at de.willuhn.jameica.messaging.NamedConcurrentQueue$1.run(NamedConcurrentQueue.java:81)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
Caused by: MultiException[java.lang.OutOfMemoryError: unable to create new native thread, java.util.concurrent.RejectedExecutionException: org.eclipse.jetty.io.ManagedSelector@144adc5 id=0 keys=0 selected=0]
  at org.eclipse.jetty.server.Server.doStart(Server.java:386)
  at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
  at de.willuhn.jameica.webadmin.server.HttpServiceImpl.start(HttpServiceImpl.java:176)
  ... 8 more
  Suppressed: java.util.concurrent.RejectedExecutionException: org.eclipse.jetty.io.ManagedSelector@144adc5 id=0 keys=0 selected=0
    at org.eclipse.jetty.util.thread.QueuedThreadPool.execute(QueuedThreadPool.java:383)
    at org.eclipse.jetty.io.SelectorManager.execute(SelectorManager.java:143)
    at org.eclipse.jetty.io.ManagedSelector.doStart(ManagedSelector.java:91)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
    at org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:273)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
    at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
    at org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:268)
    at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
    at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:235)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
    at org.eclipse.jetty.server.Server.doStart(Server.java:401)
    ... 10 more
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
  at java.lang.Thread.start0(Native Method)
  at java.lang.Thread.start(Thread.java:714)
  at org.eclipse.jetty.util.thread.QueuedThreadPool.startThreads(QueuedThreadPool.java:475)
  at org.eclipse.jetty.util.thread.QueuedThreadPool.doStart(QueuedThreadPool.java:115)
  at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
  at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
  at org.eclipse.jetty.server.Server.start(Server.java:422)
  at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:113)
  at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
  at org.eclipse.jetty.server.Server.doStart(Server.java:389)
  ... 10 more

//A Very Simple Thread Example
class ThreadsExample {
  public static void main(String[] args){
    int i=0;
    while(true){
  i++;
      new Thread(new Runnable(){
          public void run() {
              try {
                  Thread.sleep(10000000);
              } catch(InterruptedException e) { 
      
    }        
        }
      }).start();
   System.out.println("Number: " + i);
    }
  }
}

Ergebnis: 

Number: 5436
Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread
  at java.lang.Thread.start0(Native Method)
  at java.lang.Thread.start(Thread.java:714)
  at ExampleProgram.main(threads.java:15)