### Question:
BaseBitmapWriter implements BitMapWriter { @Override public void release() { IoUtil.release(byteArrayWriter); } BaseBitmapWriter(ByteArrayWriter byteArrayWriter); @Override void resetContentPosition(); @Override void put(long pos, ImmutableBitMap val); @Override void release();  }### Answer:
@Test public void release() { mockStatic(IoUtil.class); new BaseBitmapWriter(byteArrayWriter).release(); verifyStatic(IoUtil.class); IoUtil.release(byteArrayWriter); }