When you enter command with "!=" to SIMR it shutdowns REPL.

When you enter command "!=" to SIMR command line it shutdowns the REPL with exception:

event not found
    at jline_modified.console.ConsoleReader.expandEvents(ConsoleReader.java:746)
    at jline_modified.console.ConsoleReader.finishBuffer(ConsoleReader.java:616)
    at jline_modified.console.ConsoleReader.accept(ConsoleReader.java:1924)
    at jline_modified.console.ConsoleReader.readLine(ConsoleReader.java:2549)
    at jline_modified.console.ConsoleReader.readLine(ConsoleReader.java:2174)
    at jline_modified.console.ConsoleReader.readLine(ConsoleReader.java:2162)
    at org.apache.spark.simr.RelayClient$.readLoop(RelayClient.scala:198)
    at org.apache.spark.simr.RelayClient$.main(RelayClient.scala:222)
    at org.apache.spark.simr.RelayClient.main(RelayClient.scala)
    at org.apache.spark.simr.SimrJob.run(SimrJob.java:319)
    at org.apache.spark.simr.SimrJob.main(SimrJob.java:338)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:208)