test/hotspot/jtreg/runtime/ErrorHandling/ErrorHandler.java

rev 47862 : imported patch 10.07.open.rebase_20171110.dcubed
rev 47867 : coleenp CR: Change ThreadsList::_threads from 'mtGC' -> 'mtThread', add header comment to threadSMR.hpp file, cleanup JavaThreadIteratorWithHandle ctr, make ErrorHandling more efficient.

*** 21,30 ****
--- 21,31 ----
   * questions.
   */
  
  /*
   * @test
+  * @requires (vm.debug == true)
   * @bug 6888954
   * @bug 8015884
   * @summary Exercise HotSpot error handling code by invoking java with
   *          -XX:ErrorHandlerTest option to cause an error report. Check the results.
   * @modules java.base/jdk.internal.misc
*** 37,57 ****
  import jdk.test.lib.process.OutputAnalyzer;
  
  public class ErrorHandler {
  
      public static OutputAnalyzer runTest(int testcase) throws Exception {
          return new OutputAnalyzer(
              ProcessTools.createJavaProcessBuilder(
              "-XX:-TransmitErrorReport", "-XX:-CreateCoredumpOnCrash", "-XX:ErrorHandlerTest=" + testcase)
              .start());
      }
  
      public static void main(String[] args) throws Exception {
-         // Test is only applicable for debug builds
-         if (!Platform.isDebugBuild()) {
-             return;
-         }
          // Keep this in sync with hotspot/src/share/vm/utilities/debug.cpp
          int i = 1;
          String[] strings = {
              "assert(str == NULL) failed: expected null",
              "assert(num == 1023 && *str == 'X') failed: num=",
--- 38,55 ----
  import jdk.test.lib.process.OutputAnalyzer;
  
  public class ErrorHandler {
  
      public static OutputAnalyzer runTest(int testcase) throws Exception {
+         // The -XX:ErrorHandlerTest=N option requires debug bits.
          return new OutputAnalyzer(
              ProcessTools.createJavaProcessBuilder(
              "-XX:-TransmitErrorReport", "-XX:-CreateCoredumpOnCrash", "-XX:ErrorHandlerTest=" + testcase)
              .start());
      }
  
      public static void main(String[] args) throws Exception {
          // Keep this in sync with hotspot/src/share/vm/utilities/debug.cpp
          int i = 1;
          String[] strings = {
              "assert(str == NULL) failed: expected null",
              "assert(num == 1023 && *str == 'X') failed: num=",