How can I get short[] from a ByteBuffer

I am using JNI code in an Android project in which the JNI native function requires a short[] argument. However, the original data is stored as a ByteBuffer. I'm trying the convert the data format as follows.

ByteBuffer rgbBuf = ByteBuffer.allocate(size);
...    
short[] shortArray = (short[]) rgbBuf.asShortBuffer().array().clone();

But I encounter the following problem when running the second line of code shown above:

E/AndroidRuntime(23923): Caused by: java.lang.UnsupportedOperationException
E/AndroidRuntime(23923): at Java.nio.ShortToByteBufferAdapter.protectedArray(ShortToByteBufferAdapter.java:169)

Could anyone suggest a means to implement the conversion?