title: Openshift - java.lang.OutOfMemoryError: unable to create new native thread"
body: <p>I have hosted my app on Openshift PAAS. My app does not create thread explicity. I have been getting following error</p>
  
  <p>m.sun.jersey.spi.container.ContainerResponse mapMappableContainerException
  SEVERE: The exception contained within MappableContainerException could not be mapped to a response, re-throwing to the HTTP container
  java.lang.OutOfMemoryError: unable to create new native thread</p>
  
  <p>How do I resolve the error? I don't have the access to change ulimit as I am using hosted server.</p>