notes.txt

--- java6
C_INCLUDE_PATH=/System/Library/Frameworks/JavaVM.framework/Versions/A/Headers cc jvmfaketime.c -o libjvmfaketime.dylib -dynamiclib -lcurl
sudo cp libjvmfaketime.dylib /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Libraries

javac -cp javassist.jar:. ClassModifier.java
java -cp .:javassist.jar -Djava.library.path=. ClassModifier

javac -Xbootclasspath/p:. Test.java
java -cp . -Xbootclasspath/p:. Test

--- java7
C_INCLUDE_PATH=/Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/include cc -I '/Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/include/darwin' jvmfaketime.c -o libjvmfaketime.dylib -dynamiclib -lcurl
sudo cp libjvmfaketime.dylib /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/jre/lib

javac -cp javassist.jar:. ClassModifier.java
java -cp .:javassist.jar -Djava.library.path=. ClassModifier

javac -Xbootclasspath/p:. Test.java
java -cp . -Xbootclasspath/p:. Test