http://openjdk.java.net/projects/code-tools/jmh/jmh-core/: The jmh is a Java harness for building, running, and analysing nano/micro/macro benchmarks written in Java and other languages targeting the JVM. (Oracle)
  • Aleksey Shipilev (Oracle/Sun, Red Hat)
  • Sergey Kuksenko (Oracle/Sun)
  • Anders Astrand (Oracle/BEA)
  • Staffan Friberg (Oracle/BEA)
  • Henrik Loef (Oracle/BEA) 
class org.openjdk.jmh.runner.ForkedMain
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.openjdk.jmh.runner.ForkedMain
  super_class: java.lang.Object
{
  private static final java.util.concurrent.atomic.AtomicBoolean hangupFuse;
    descriptor: Ljava/util/concurrent/atomic/AtomicBoolean;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.concurrent.atomic.AtomicReference<org.openjdk.jmh.runner.link.BinaryLinkClient> linkRef;
    descriptor: Ljava/util/concurrent/atomic/AtomicReference;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/concurrent/atomic/AtomicReference<Lorg/openjdk/jmh/runner/link/BinaryLinkClient;>;

  private static volatile boolean gracefullyFinished;
    descriptor: Z
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  private static volatile java.lang.Throwable exception;
    descriptor: Ljava/lang/Throwable;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  private static volatile java.io.PrintStream nakedErr;
    descriptor: Ljava/io/PrintStream;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 42
            new java.util.concurrent.atomic.AtomicBoolean
            dup
            invokespecial java.util.concurrent.atomic.AtomicBoolean.<init>:()V
            putstatic org.openjdk.jmh.runner.ForkedMain.hangupFuse:Ljava/util/concurrent/atomic/AtomicBoolean;
         1: .line 43
            new java.util.concurrent.atomic.AtomicReference
            dup
            invokespecial java.util.concurrent.atomic.AtomicReference.<init>:()V
            putstatic org.openjdk.jmh.runner.ForkedMain.linkRef:Ljava/util/concurrent/atomic/AtomicReference;
         2: .line 47
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.openjdk.jmh.runner.ForkedMain this
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.openjdk.jmh.runner.ForkedMain this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/openjdk/jmh/runner/ForkedMain;

  public static void main(java.lang.String[]);
    descriptor: ([Ljava/lang/String;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=8, args_size=1
        start local 0 // java.lang.String[] argv
         0: .line 55
            aload 0 /* argv */
            arraylength
            iconst_2
            if_icmpeq 2
         1: .line 56
            new java.lang.IllegalArgumentException
            dup
            ldc "Expected two arguments for forked VM"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 59
      StackMap locals:
      StackMap stack:
            invokestatic java.lang.Runtime.getRuntime:()Ljava/lang/Runtime;
            new org.openjdk.jmh.runner.ForkedMain$HangupThread
            dup
            invokespecial org.openjdk.jmh.runner.ForkedMain$HangupThread.<init>:()V
            invokevirtual java.lang.Runtime.addShutdownHook:(Ljava/lang/Thread;)V
         3: .line 62
            new org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread
            dup
            invokespecial org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread.<init>:()V
            astore 1 /* shutdownThread */
        start local 1 // org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread shutdownThread
         4: .line 68
            aload 0 /* argv */
            iconst_0
            aaload
            astore 2 /* hostName */
        start local 2 // java.lang.String hostName
         5: .line 69
            aload 0 /* argv */
            iconst_1
            aaload
            invokestatic java.lang.Integer.valueOf:(Ljava/lang/String;)Ljava/lang/Integer;
            invokevirtual java.lang.Integer.intValue:()I
            istore 3 /* hostPort */
        start local 3 // int hostPort
         6: .line 72
            new org.openjdk.jmh.runner.link.BinaryLinkClient
            dup
            aload 2 /* hostName */
            iload 3 /* hostPort */
            invokespecial org.openjdk.jmh.runner.link.BinaryLinkClient.<init>:(Ljava/lang/String;I)V
            astore 4 /* link */
        start local 4 // org.openjdk.jmh.runner.link.BinaryLinkClient link
         7: .line 73
            getstatic org.openjdk.jmh.runner.ForkedMain.linkRef:Ljava/util/concurrent/atomic/AtomicReference;
            aload 4 /* link */
            invokevirtual java.util.concurrent.atomic.AtomicReference.set:(Ljava/lang/Object;)V
         8: .line 75
            aload 4 /* link */
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.handshake:()Lorg/openjdk/jmh/runner/options/Options;
            astore 5 /* options */
        start local 5 // org.openjdk.jmh.runner.options.Options options
         9: .line 78
            getstatic java.lang.System.err:Ljava/io/PrintStream;
            putstatic org.openjdk.jmh.runner.ForkedMain.nakedErr:Ljava/io/PrintStream;
        10: .line 79
            aload 4 /* link */
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.getErrStream:()Ljava/io/PrintStream;
            invokestatic java.lang.System.setErr:(Ljava/io/PrintStream;)V
        11: .line 80
            aload 4 /* link */
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.getOutStream:()Ljava/io/PrintStream;
            invokestatic java.lang.System.setOut:(Ljava/io/PrintStream;)V
        12: .line 83
            new org.openjdk.jmh.runner.ForkedRunner
            dup
            aload 5 /* options */
            aload 4 /* link */
            invokespecial org.openjdk.jmh.runner.ForkedRunner.<init>:(Lorg/openjdk/jmh/runner/options/Options;Lorg/openjdk/jmh/runner/link/BinaryLinkClient;)V
            astore 6 /* runner */
        start local 6 // org.openjdk.jmh.runner.ForkedRunner runner
        13: .line 84
            aload 6 /* runner */
            invokevirtual org.openjdk.jmh.runner.ForkedRunner.run:()V
        14: .line 86
            iconst_1
            putstatic org.openjdk.jmh.runner.ForkedMain.gracefullyFinished:Z
        end local 6 // org.openjdk.jmh.runner.ForkedRunner runner
        end local 5 // org.openjdk.jmh.runner.options.Options options
        end local 4 // org.openjdk.jmh.runner.link.BinaryLinkClient link
        end local 3 // int hostPort
        end local 2 // java.lang.String hostName
        15: .line 87
            goto 23
      StackMap locals: java.lang.String[] org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread
      StackMap stack: java.lang.Throwable
        16: astore 2 /* ex */
        start local 2 // java.lang.Throwable ex
        17: .line 88
            aload 2 /* ex */
            putstatic org.openjdk.jmh.runner.ForkedMain.exception:Ljava/lang/Throwable;
        18: .line 89
            iconst_0
            putstatic org.openjdk.jmh.runner.ForkedMain.gracefullyFinished:Z
        end local 2 // java.lang.Throwable ex
        19: .line 92
            aload 1 /* shutdownThread */
            invokevirtual org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread.start:()V
            goto 24
        20: .line 90
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 7
        21: .line 92
            aload 1 /* shutdownThread */
            invokevirtual org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread.start:()V
        22: .line 93
            aload 7
            athrow
        23: .line 92
      StackMap locals:
      StackMap stack:
            aload 1 /* shutdownThread */
            invokevirtual org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread.start:()V
        24: .line 95
      StackMap locals:
      StackMap stack:
            getstatic org.openjdk.jmh.runner.ForkedMain.gracefullyFinished:Z
            ifne 26
        25: .line 96
            iconst_1
            invokestatic java.lang.System.exit:(I)V
        end local 1 // org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread shutdownThread
        26: .line 99
      StackMap locals:
      StackMap stack:
            return
        end local 0 // java.lang.String[] argv
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   27     0            argv  [Ljava/lang/String;
            4   26     1  shutdownThread  Lorg/openjdk/jmh/runner/ForkedMain$ShutdownTimeoutThread;
            5   15     2        hostName  Ljava/lang/String;
            6   15     3        hostPort  I
            7   15     4            link  Lorg/openjdk/jmh/runner/link/BinaryLinkClient;
            9   15     5         options  Lorg/openjdk/jmh/runner/options/Options;
           13   15     6          runner  Lorg/openjdk/jmh/runner/ForkedRunner;
           17   19     2              ex  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           4    15      16  Class java.lang.Throwable
           4    19      20  any
    Exceptions:
      throws java.lang.Exception
    MethodParameters:
      Name  Flags
      argv  

  static void hangup();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=3, args_size=0
         0: .line 106
            getstatic org.openjdk.jmh.runner.ForkedMain.hangupFuse:Ljava/util/concurrent/atomic/AtomicBoolean;
            iconst_0
            iconst_1
            invokevirtual java.util.concurrent.atomic.AtomicBoolean.compareAndSet:(ZZ)Z
            ifne 1
            return
         1: .line 108
      StackMap locals:
      StackMap stack:
            getstatic org.openjdk.jmh.runner.ForkedMain.gracefullyFinished:Z
            ifne 17
         2: .line 109
            getstatic org.openjdk.jmh.runner.ForkedMain.exception:Ljava/lang/Throwable;
            astore 0 /* ex */
        start local 0 // java.lang.Throwable ex
         3: .line 110
            aload 0 /* ex */
            ifnonnull 7
         4: .line 111
            new java.lang.IllegalStateException
            dup
         5: .line 112
            ldc "<failure: VM prematurely exited before JMH had finished with it, explicit System.exit was called?>"
         6: .line 111
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            astore 0 /* ex */
         7: .line 116
      StackMap locals: java.lang.Throwable
      StackMap stack:
            aload 0 /* ex */
            invokevirtual java.lang.Throwable.getMessage:()Ljava/lang/String;
            astore 1 /* msg */
        start local 1 // java.lang.String msg
         8: .line 118
            getstatic org.openjdk.jmh.runner.ForkedMain.linkRef:Ljava/util/concurrent/atomic/AtomicReference;
            invokevirtual java.util.concurrent.atomic.AtomicReference.get:()Ljava/lang/Object;
            checkcast org.openjdk.jmh.runner.link.BinaryLinkClient
            astore 2 /* link */
        start local 2 // org.openjdk.jmh.runner.link.BinaryLinkClient link
         9: .line 119
            aload 2 /* link */
            ifnull 16
        10: .line 121
            aload 2 /* link */
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.getOutputFormat:()Lorg/openjdk/jmh/runner/format/OutputFormat;
            aload 1 /* msg */
            invokeinterface org.openjdk.jmh.runner.format.OutputFormat.println:(Ljava/lang/String;)V
        11: .line 122
            aload 2 /* link */
            new org.openjdk.jmh.runner.BenchmarkException
            dup
            aload 0 /* ex */
            invokespecial org.openjdk.jmh.runner.BenchmarkException.<init>:(Ljava/lang/Throwable;)V
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.pushException:(Lorg/openjdk/jmh/runner/BenchmarkException;)V
        12: .line 123
            goto 17
      StackMap locals: java.lang.Throwable java.lang.String org.openjdk.jmh.runner.link.BinaryLinkClient
      StackMap stack: java.lang.Exception
        13: pop
        14: .line 125
            aload 0 /* ex */
            getstatic org.openjdk.jmh.runner.ForkedMain.nakedErr:Ljava/io/PrintStream;
            invokevirtual java.lang.Throwable.printStackTrace:(Ljava/io/PrintStream;)V
        15: .line 127
            goto 17
        16: .line 129
      StackMap locals:
      StackMap stack:
            aload 0 /* ex */
            getstatic org.openjdk.jmh.runner.ForkedMain.nakedErr:Ljava/io/PrintStream;
            invokevirtual java.lang.Throwable.printStackTrace:(Ljava/io/PrintStream;)V
        end local 2 // org.openjdk.jmh.runner.link.BinaryLinkClient link
        end local 1 // java.lang.String msg
        end local 0 // java.lang.Throwable ex
        17: .line 133
      StackMap locals:
      StackMap stack:
            getstatic org.openjdk.jmh.runner.ForkedMain.linkRef:Ljava/util/concurrent/atomic/AtomicReference;
            aconst_null
            invokevirtual java.util.concurrent.atomic.AtomicReference.getAndSet:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.openjdk.jmh.runner.link.BinaryLinkClient
            astore 0 /* link */
        start local 0 // org.openjdk.jmh.runner.link.BinaryLinkClient link
        18: .line 134
            aload 0 /* link */
            ifnull 22
        19: .line 136
            aload 0 /* link */
            invokevirtual org.openjdk.jmh.runner.link.BinaryLinkClient.close:()V
        20: .line 137
            goto 22
      StackMap locals: org.openjdk.jmh.runner.link.BinaryLinkClient
      StackMap stack: java.io.IOException
        21: pop
        22: .line 141
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.openjdk.jmh.runner.link.BinaryLinkClient link
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            3   17     0    ex  Ljava/lang/Throwable;
            8   17     1   msg  Ljava/lang/String;
            9   17     2  link  Lorg/openjdk/jmh/runner/link/BinaryLinkClient;
           18   23     0  link  Lorg/openjdk/jmh/runner/link/BinaryLinkClient;
      Exception table:
        from    to  target  type
          10    12      13  Class java.lang.Exception
          19    20      21  Class java.io.IOException
}
SourceFile: "ForkedMain.java"
NestMembers:
  org.openjdk.jmh.runner.ForkedMain$HangupThread  org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread
InnerClasses:
  private HangupThread = org.openjdk.jmh.runner.ForkedMain$HangupThread of org.openjdk.jmh.runner.ForkedMain
  private ShutdownTimeoutThread = org.openjdk.jmh.runner.ForkedMain$ShutdownTimeoutThread of org.openjdk.jmh.runner.ForkedMain