* m4/jni.m4: Added ENABLE_JNI AM_CONDITIONAL.

* m4/jni.m4: Added ENABLE_JNI AM_CONDITIONAL.

* src/vm/vm.c (vm_createjvm): Replaced some ENABLE_JAVASE with
ENABLE_JNI.
(vm_create): Likewise.

* src/native/Makefile.am: Likewise.

* src/native/jni.c (jni_init) [ENABLE_JAVASE]: ifdef'ed Java SE stuff.
(_Jv_JNI_DefineClass) [!ENABLE_JAVASE]: Abort.
(_Jv_JNI_FindClass): Likewise.
(_Jv_JNI_FromReflectedMethod): Likewise.
(_Jv_JNI_FromReflectedField): Likewise.
(_Jv_JNI_NewDirectByteBuffer): Likewise.
(_Jv_JNI_GetDirectBufferAddress): Likewise.
(_Jv_JNI_GetDirectBufferCapacity): Likewise.
(_Jv_JNI_IsAssignableFrom): Call _Jv_java_lang_Class_isAssignableFrom.
(_Jv_JNI_IsInstanceOf): Call _Jv_java_lang_Class_isInstance.
(_Jv_JNI_EnsureLocalCapacity): Removed debug output.