SpotBugs - RCN_REDUNDANT_NULLCHECK_OF_NULL_VALUE

Description

RCN: Redundant nullcheck of mt which is known to be null

This method contains a redundant check of a known null value against the constant null.

做了無謂的nullcheck。

Solution

把它拿掉就好。

Example

Before:

		InputStream inputStream = null;
		try {
			inputStream = new FileInputStream("temp.txt");
		} catch( Exception e ){
			if( inputStream != null ){
				Cleaner.close(inputStream);
			}
			logger.error("", e);
		}

After:

		InputStream inputStream = null;
		try {
			inputStream = new FileInputStream("temp.txt");
		} catch( Exception e ){
			logger.error("", e);
		}

上面範例的close理想中要把它放到finally中。