docs: public final void copyFromUnsafe(int offset, Object source, int sourcePointer, int numBytes) {
  		final long thisPointer = this.address + offset;
  		if (thisPointer + numBytes > addressLimit) {
  			throw new IndexOutOfBoundsException(
  					String.format("offset=%d, numBytes=%d, address=%d",
  							offset, numBytes, this.address));
  		}
  		UNSAFE.copyMemory(source, sourcePointer, this.heapMemory, thisPointer, numBytes);
  	}