Stop bash script if unchecked Java Exception is thrown

I am running a java program from within a Bash script. If the java program throws an unchecked exception, I want to stop the bash script rather than the script continuing execution of the next command.

How to do this? My script looks something like the following:

#!/bin/bash

javac *.java

java -ea HelloWorld > HelloWorld.txt

mv HelloWorld.txt ./HelloWorldDir

From stackoverflow

• Catch the exception and then call System.exit. Check the return code in the shell script.

• #!/bin/bash
  
  function failure()
  {
      echo "$@" >&2
      exit 1
  }
  
  javac *.java || failure "Failed to compile"
  
  java -ea HelloWorld > HelloWorld.txt || failure "Failed to run"
  
  mv HelloWorld.txt ./HelloWorldDir || failure "Failed to move"
  

  Also you have to ensure that java exits with a non-zero exit code, but that's quite likely for a uncaught exception.

  Basically exit the shell script if the command fails.

• In agreement with Tom Hawtin,

  To check the exit code of the Java program, within the Bash script:

  #!/bin/bash 
  
  javac *.java 
  
  java -ea HelloWorld > HelloWorld.txt 
  
  exitValue=$? 
  
  if [ $exitValue != 0 ] 
  then 
  exit $exitValue 
  fi 
  
  mv HelloWorld.txt ./HelloWorldDir