You must render the stack trace to a string buffer and then
emit the string to the PrintStream in a single println:
public void printStackTrace(PrintStream s)
{
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
pw.println(this);
StackTraceElement[] trace = getOurStackTrace();
for (int i = 0; i < trace.length; i++)
pw.println("\tat " + trace[i]);
Throwable ourCause = getCause();
if (ourCause != null)
ourCause.printStackTraceAsCause(pw, trace);
synchronized (s)
{
s.println(sw.toString());
}
}
xxxxxxxxxxxxxxxxxxxxxxxx
Scott Stark
Chief Technology Officer
JBoss Group, LLC
xxxxxxxxxxxxxxxxxxxxxxxx
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Vladyslav
Kosulin
Sent: Friday, January 30, 2004 12:32 PM
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-user] log4j SMTP appender trouble
Scott M Stark wrote:
> It depends on what is generating the stack trace. In order to get this
> behavior there has to be a line by line emission of the stack trace
> using System.err.println() for each line rather than one
> System.err.println()
> with the entire stack trace as a message. What is the source of this?
You are right: I use e.printStackTrace(), and here is the code from
Throwable.java:
public void printStackTrace(PrintStream s) {
synchronized (s) {
s.println(this);
StackTraceElement[] trace = getOurStackTrace();
for (int i=0; i < trace.length; i++)
s.println("\tat " + trace[i]);
Throwable ourCause = getCause();
if (ourCause != null)
ourCause.printStackTraceAsCause(s, trace);
}
println for class name and message, println for every entry.
Any ideas how to cut the corner here?
Vlad
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