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  23 
  24 #
  25 # @test
  26 # @bug     4982128
  27 # @summary Test low memory detection of non-heap memory pool
  28 # @requires vm.gc=="null"
  29 # @run build LowMemoryTest2 MemoryUtil
  30 # @run shell/timeout=600 LowMemoryTest2.sh
  31 #
  32 
  33 if [ ! -z "${TESTJAVA}" ] ; then
  34      JAVA=${TESTJAVA}/bin/java
  35      CLASSPATH=${TESTCLASSES}
  36      export CLASSPATH
  37 else
  38      echo "--Error: TESTJAVA must be defined as the pathname of a jdk to test."
  39      exit 1
  40 fi
  41 
  42 # Test execution
  43 
  44 failures=0
  45 
  46 go() {
  47     echo ''
  48     sh -xc "$JAVA $TESTVMOPTS $*" 2>&1
  49     if [ $? != 0 ]; then failures=`expr $failures + 1`; fi
  50 }
  51 
  52 # Run test with each GC configuration
  53 # 
  54 # Notes: To ensure that metaspace fills up we disable class unloading.
  55 # Also we set the max metaspace to 8MB - otherwise the test takes too
  56 # long to run. 
  57 
  58 go -noclassgc -XX:MaxMetaspaceSize=16m -XX:+UseSerialGC LowMemoryTest2
  59 go -noclassgc -XX:MaxMetaspaceSize=16m -XX:+UseParallelGC LowMemoryTest2
  60 go -noclassgc -XX:MaxMetaspaceSize=16m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC LowMemoryTest2
  61 
  62 # Test class metaspace - might hit MaxMetaspaceSize instead if
  63 # UseCompressedClassPointers is off or if 32 bit.
  64 go -noclassgc -XX:MaxMetaspaceSize=16m -XX:CompressedClassSpaceSize=4m LowMemoryTest2
  65 
  66 echo ''
  67 if [ $failures -gt 0 ];
  68   then echo "$failures test(s) failed";
  69   else echo "All test(s) passed"; fi
  70 exit $failures
  71 
  72