eclise problem in snow leopard when running java 1.6

error:

"java.lang.NoClassDefFoundError: apple/laf/CoreUIControl"

solution:

add /System/Library/Frameworks/JavaVM.framework/Versions/A/Frameworks/JavaRuntimeSupport.framework/Versions/A/Resources/Java/JavaRuntimeSupport.jar

to classpath of run configuration

call java from native program

1. create Java VM

JavaVM *jvm = NULL;

JNIEnv *env = NULL;

JavaVMInitArgs vm_args;

JavaVMOption options[2];

args.nOptions = 2;

args.version = JNI_VERSION_1_6;

options[0].optionString = "-Xmx512m";

options[1].optionString ="-Djava.class.path=test.jar:test2.jar";

args.options = options;

#ifdef FOR_MAC_OS

setenv("JAVA_JVM_VERSION", "1.6",1);

#endif

JNI_CreateJavaVM(&jvm, (void **)&env, &args);

(2) get class & method of class

jclass aClass = (*env)->FindClass(env, "Test");

jmethodID aid = (*env)->GetStaticMethodID(env, aClass,"main","([Ljava/lang/String;)V");

(3) call method of class

jobjectArray applicationArgs;

jstring applicationArg0;

applicationArgs = (*env)->NewObjectArray(env, 1, (*env)->FindClass(env, "java/lang/String"), NULL);

applicationArg0 = (*env)->NewStringUTF(env, "Test");

(*env)->SetObjectArrayElement(env, applicationArgs, 0, applicationArg0);

(*env)->CallStaticVoidMethod(env, aClass, aid, applicationArgs);

create java app on mac

use "Jar Bundler"

let java menu bar replace app menu bar

method 1:

-Dcom.apple.macos.useScreenMenuBar="true"

method 2:

System.setProperty("com.apple.macos.useScreenMenuBar","true");

compile jni program on xcode

1. set header search path for app target from build panel:

/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Headers

2. add JavaVM.framework

java location in mac

/System/Library/Frameworks/JavaVM.framework

show content of jar file

ex:

jar tvf test.jar

compile JNI program on mac

gcc -o launch.o -I/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Headers -framework JavaVM launch.c -m64

java -cp

ex:

java -cp .:test.jar:test2.jar MyClass 16

main class is MyClass, argument for MyClass is 16