SMTPAppender, throwable string representation, Log4j 1.2.8

[Sullivan, Sean C - MWT]

I am using:

- Sun J2SE 1.3.1.06
- Jakarta Log4j 1.2.8
- SMTPAppender with PatternLayout

When the SMTPAppender sends an email message, the stack trace 
is formatted differently than I would expect.

The entire stack trace is concatenated onto a single line.

I was expecting the stack trace to be on multiple lines.

I studied the source code for SMTPAppender.  This is what I found:

//
// source file:  src/java/org/apache/log4j/net/SMTPAppender.java
//
protected  void sendBuffer() {

// ...
        if(layout.ignoresThrowable()) {
          String[] s = event.getThrowableStrRep();
          if (s != null) {
            for(int j = 0; j < s.length; j++) {
              sbuf.append(s[j]);
            }
          }
        }

// ...
}

You'll notice that the inner for loop does not append newline 
characters.

It would be helpful if the loop appended a new line character:

            for(int j = 0; j < s.length; j++) {
              sbuf.append(s[j]);
              sbuf.append("\n");
            }

Cheers,

-Sean


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