Description Colin Bartolome 2012-12-06 14:34:33 EST

With the "resource leak" and "potential resource leak" warnings turned on and the source compliance set to 1.7, the below code exhibits some odd behavior. When I declare an anonymous inner class, a "Resource leak: (unassigned Closeable value) is never closed" warning appears. When I remove the anonymous inner class, no warning appears.

It seems like the warning should appear for both cases or for neither case. I'm also not sure how the compiler expects me to fix the warning.

Here's the code:

import java.io.*;

public class WriterTest implements Runnable
{
   private BufferedWriter m_Writer;
   
   @Override
   public void run()
   {
      try
      {
         initializeWriter();
         
         m_Writer.write("string");
         m_Writer.newLine();
         
         closeWriter();
      }
      catch (IOException ioe)
      {
         ioe.printStackTrace();
      }
   }
   
   private void initializeWriter()
      throws UnsupportedEncodingException, FileNotFoundException
   {
      m_Writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("file"), "UTF-8"))
      {
         /**
          * Writes an LF character on all platforms, to avoid constantly flipping the line terminator style.
          */
         @Override
         public void newLine() throws IOException
         {
            write('\n');
         }
      };
   }
   
   private void closeWriter()
      throws IOException
   {
      m_Writer.close();
   }
}