Rule Definition
The purpose is to avoid to use the deprecated enity as currently good and appropriate new version of the same is available. The deprecated entity may be dropped sometime in near future without any intimation.

Remediation
Check the documentation of the deprecated entity and avoid not to use the same. Some other way can be approached or new method, type or class can be used instead

Violation Code Sample

class Test
            {
                public void funUsingDerecatedField()
                {
                    value = 10;
                }
                @Deprecated
                int value;
            }
            public class DeprecatedUse {
                public static void main(String[] args) {
                      Test obj = new Test();
					  obj.funUsingDerecatedField(); // VIOLATION as function using a deprecated field is called
                }
            }

Fixed Code Sample

-Sample 1
private void dumpResponse(ServerResponse response) {
	
	try {
		String resp = new String(response.getByteArray());
		logger.debug("Response Dump: "+resp);
		response.setResponseStream(new StringBufferInputStream(resp)); // as StringBufferInputStream is Deprecated the preferred way to create a stream from a string is via the StringReader class.
	} catch (CommunicationException e) {
		e.printStackTrace();
	}
	
}
 
---------------------------------------------------------------------------------
public class MyTest {
	
	public static void main(String[] args) {
		
		List list = new List();
		list.addItem("MyItemOne"); // addItem is deprecated use add
		list.addItem("MyItemTwo"); // addItem is deprecated use add
		list.addItem("MyItemThree"); // addItem is deprecated use add
		
		list.clear(); // clear is deprecated use removeall
	}
}

https://stackoverflow.com/questions/9031832/how-to-declare-or-mark-a-java-method-as-deprecated https://stackoverflow.com/questions/14627313/what-does-deprecated-mean-on-method-parameters-and-local-variables