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From Kamal Mettananda <lka...@gmail.com>
Subject Header does not end with a new line in Console appender
Date Tue, 22 Mar 2016 18:30:30 GMT
Hi all

This is my first email, so please raise if I have not correctly understood
the usage of the header attribute.

When I add a text to the header attribute of PatternLayout inside Console
appender, the header will not end with a new line hence the first log line
will also be using the same line as the header line; but this is not the
case for footer attribute.

Example output:
My Header in Log2016-03-22 23:23:48,487 [main] INFO
 org.logging.learn.log4j.Main - some log1
2016-03-22 23:23:48,487 [main] INFO  org.logging.learn.log4j.Main - some

Below is the sample of my log4j2.xml

<Configuration status="WARN">
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d [%t] %-5level %logger - %msg%n" header="My
Header in Log" footer="Footer"/>
    <Root level="info">
      <AppenderRef ref="Console"/>

May be there is a way to enable a new line via for the header?

When I looked at the
code, org.apache.logging.log4j.core.appender.OutputStreamManager actually
does not append a new line after the header; may be a simple fix can be
made there? (Not exactly sure whether I was looking at the correct
location, please point out if I am incorrect).

        if (writeHeader && layout != null) {
            final byte[] header = layout.getHeader();
            if (header != null) {
                try {
                    this.os.write(header, 0, header.length);
                } catch (final IOException e) {
                    logError("unable to write header", e);


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