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Posted to log4j-dev@logging.apache.org by bu...@apache.org on 2008/01/02 08:03:35 UTC

DO NOT REPLY [Bug 44157] New: - InterruptedIOException ignored by log4j

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           Summary: InterruptedIOException ignored by log4j
           Product: Log4j
           Version: 1.2
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Appender
        AssignedTo: log4j-dev@logging.apache.org
        ReportedBy: oberhaus@pobox.com


log4j catches and ignores InterruptedIOException's, causing code that uses log4j to freeze under 
certain conditions.

When the exception InterruptedException is caught, special care must be taken. If InterruptedException 
is caught and ignored, and the thread does not exit, other code that interrupted that thread will not 
function correctly.

The same is true of InterruptedIOException (which derives from IOException). This can be thrown from 
any java.nio blocking method, or can be thrown from java.io methods on Solaris. An 
InterruptedIOException must be treated the same as an InterruptedException; either the exception 
should be allowed to continue up the call stack, or something special must be done.

One example of something special is to call the following:

Thread.currentThread().interrupt();

I propose that everywhere in log4j that IOException is caught, a special catch of InterruptedIOException 
is done and Thread.

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DO NOT REPLY [Bug 44157] - InterruptedIOException ignored by log4j

Posted by bu...@apache.org.
DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG�
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://issues.apache.org/bugzilla/show_bug.cgi?id=44157>.
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INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=44157





------- Additional Comments From oberhaus@pobox.com  2008-01-01 23:05 -------
Here are some documents that support my suggestion:

http://java.sun.com/j2se/1.5.0/docs/guide/misc/threadPrimitiveDeprecation.html
How do I stop a thread that waits for long periods (e.g., for input)?

http://www-128.ibm.com/developerworks/java/library/j-jtp05236.html
Don't swallow interrupts



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