Benchmarks for compare Java 8 stack walking and locating the caller's class. If you want to run them you will need to:

• install Java 8

• point the JAVA_HOME environment variable to the jdk 8 directory

• Build and run the benchmarks :

  cd java8
  ../apache-maven-3.2.5/bin/mvn clean package
  $JAVA_HOME/bin/java -jar target/benchmarks.jar -f 1

To get more help on the jmh command line arguments:

java -jar target/benchmarks.jar -help

Results on my MacBook Pro for Java 1.8.0_121:

Benchmark                                        Mode  Cnt   Score   Error  Units
ExceptionBenchmark.exceptionStackTrace           avgt   20  19.260 ± 0.385  us/op
StackWalkerGetCallerClass.exceptionGetImmediate  avgt   20   0.132 ± 0.001  us/op
StackWalkerGetCallerClass.reflectionSearch       avgt   20   3.703 ± 0.048  us/op
StackWalkerGetCallerClass.securityManager        avgt   20   0.905 ± 0.007  us/op