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.profile.AbstractPerfAsmProfiler$UnknownRegion extends org.openjdk.jmh.profile.AbstractPerfAsmProfiler$Region
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion
  super_class: org.openjdk.jmh.profile.AbstractPerfAsmProfiler$Region
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=8, locals=1, args_size=1
        start local 0 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion this
         0: .line 1219
            aload 0 /* this */
            invokestatic org.openjdk.jmh.profile.AbstractPerfAsmProfiler$MethodDesc.unknown:()Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$MethodDesc;
            lconst_0
            lconst_0
            lconst_0
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokestatic java.util.Collections.singleton:(Ljava/lang/Object;)Ljava/util/Set;
            invokespecial org.openjdk.jmh.profile.AbstractPerfAsmProfiler$Region.<init>:(Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$MethodDesc;JJLjava/util/Set;)V
         1: .line 1220
            return
        end local 0 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$UnknownRegion;

  public void printCode(java.io.PrintWriter, org.openjdk.jmh.profile.AbstractPerfAsmProfiler$PerfEvents);
    descriptor: (Ljava/io/PrintWriter;Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$PerfEvents;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion this
        start local 1 // java.io.PrintWriter pw
        start local 2 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$PerfEvents events
         0: .line 1224
            aload 1 /* pw */
            ldc " <no assembly is recorded, unknown region>"
            invokevirtual java.io.PrintWriter.println:(Ljava/lang/String;)V
         1: .line 1225
            return
        end local 2 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$PerfEvents events
        end local 1 // java.io.PrintWriter pw
        end local 0 // org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$UnknownRegion;
            0    2     1      pw  Ljava/io/PrintWriter;
            0    2     2  events  Lorg/openjdk/jmh/profile/AbstractPerfAsmProfiler$PerfEvents;
    MethodParameters:
        Name  Flags
      pw      
      events  
}
SourceFile: "AbstractPerfAsmProfiler.java"
NestHost: org.openjdk.jmh.profile.AbstractPerfAsmProfiler
InnerClasses:
  MethodDesc = org.openjdk.jmh.profile.AbstractPerfAsmProfiler$MethodDesc of org.openjdk.jmh.profile.AbstractPerfAsmProfiler
  protected PerfEvents = org.openjdk.jmh.profile.AbstractPerfAsmProfiler$PerfEvents of org.openjdk.jmh.profile.AbstractPerfAsmProfiler
  Region = org.openjdk.jmh.profile.AbstractPerfAsmProfiler$Region of org.openjdk.jmh.profile.AbstractPerfAsmProfiler
  UnknownRegion = org.openjdk.jmh.profile.AbstractPerfAsmProfiler$UnknownRegion of org.openjdk.jmh.profile.AbstractPerfAsmProfiler