Fast JNI Array Access

You can get faster JNI array access with this JDK by using jni_GetPrimitiveArrayCritical() and jni_ReleasePrimitiveArrayCritical() instead of Get*ArrayElements() calls.

• Code that uses these *Critical() operations must comply with certain restrictions:

• You must release the array elements quickly after you get them.

• You cannot call back into Java while holding onto the array elements.

• You cannot call other JNI operations.

Because of these restrictions, the array elements can be accessed without pinning and without copying. For more information, see:

http://java.sun.com/products/jdk/1.2/docs/guide/jni/jni-12.html