/**
	 * Retrieves and returns a memory block.
	 * 
	 * @param expression
	 *            expression to be evaluated to an address
	 * @param context
	 *            a debug context
	 * @param memorySpaceID
	 *            the memory space the block is being requested for, or null if
	 *            n/a
	 * @return a memory block based on the given parameters
	 * @throws DebugException
	 *             if unable to retrieve the specified memory
	 */
/**
	 * Retrieves and returns a memory block.
	 * 
	 * @param expression
	 *            expression to be evaluated to an address
	 * @param context
	 *            a debug context
	 * @param memorySpaceID
	 *            the memory space the block is being requested for, or null if
	 *            n/a
	 * @return a memory block based on the given parameters
	 * @throws DebugException
	 *             if unable to retrieve the specified memory
	 */ | IMemorySpaceAwareMemoryBlockRetrieval.java