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From: Stanimir Stamenkov <s7an10@netscape.net>
Newsgroups: comp.lang.java.help
Subject: Re: TeeOutputStream?
Date: Sun, 05 Jun 2011 10:44:47 +0300
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.help:738

Sat, 04 Jun 2011 17:17:04 -0700, /Knute Johnson/:

> public void close() throws IOException {
>      try {
>          os1.close();
>      } finally {
>          os2.close();
>      }
> }
>
> This guarantees that both close() methods will get called.  If both
> methods throw IOExceptions the caller will never see the first one as it
> will be hidden.

I usually do:

     boolean success = false;
     try {
         os1.close();
         success = true;
     } finally {
         try {
             os2.close();
         } catch (IOException ex) {
             if (success) {
                 throw ex;
             }
             // Log 'ex' possibly as warning to look at
             // subsequent error logs for details (about
             // the "original" exception).
         }
     }

Yes it looks messy.  Java 7 promises to bring improvement in that 
area with try-with-resources (auto-closeable resources) and 
exception masking:

http://www.oracle.com/technetwork/articles/java/trywithresources-401775.html

-- 
Stanimir