package org.opencv.core; public abstract class CleanableMat { protected CleanableMat(long obj) { if (obj == 0) throw new UnsupportedOperationException("Native object address is NULL"); nativeObj = obj; } @Override protected void finalize() throws Throwable { n_delete(nativeObj); super.finalize(); } private static native void n_delete(long nativeObj); public final long nativeObj; }