Example

public class ClassA { private DataInputStream stream; public void makeStream (InputStream is) { stream = new DataInputStream(is); //do something... } }

Solution

To avoid resource leaks, ensure that close() is invoked on every java.io.DataInputStream. Note: This rule applies to any form of DataInputStream constructor.

public class ClassA { private DataInputStream stream; public void makeStream (InputStream is) { stream = new DataInputStream(is); //do something... try { stream.close(); } catch(IOException ioe) { //perform exception handling } } }