Example

public class ClassA {

private BufferedWriter writer;

public void makeWriter (Writer w) {

writer = new BufferedWriter(w);
//do something...

}
}



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


public class ClassA {

private BufferedWriter writer;

public void makeWriter (Writer w) {

writer = new BufferedWriter(w);
//do something...

try {
writer.close();
} catch(IOException ioe) {
//perform exception handling
}
}
}