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=35743>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND· INSERTED IN THE BUG DATABASE.
http://issues.apache.org/bugzilla/show_bug.cgi?id=35743 ------- Additional Comments From [EMAIL PROTECTED] 2005-10-28 02:51 ------- I noticed the same thing recently. Specifying an unresolvable syslog server results in a null InetAddress (SyslogWriter.address). SyslogWriter.flush() does not check that ds.address is not null, so DatagramSocket.send() throws a NullPointerException. Sample exception output: log4j:ERROR Could not find foo. All logging will FAIL. java.net.UnknownHostException: foo: foo at java.net.InetAddress.getAllByName0(InetAddress.java:1011) at java.net.InetAddress.getAllByName0(InetAddress.java:981) at java.net.InetAddress.getAllByName(InetAddress.java:975) at java.net.InetAddress.getByName(InetAddress.java:889) at org.apache.log4j.helpers.SyslogWriter.<init>(SyslogWriter.java:47) at org.apache.log4j.net.SyslogAppender.setSyslogHost(SyslogAppender.java:297) at net.horde.pv.PV.main(PV.java:87) Exception in thread "main" java.lang.NullPointerException: null buffer || null address at java.net.PlainDatagramSocketImpl.send(Native Method) at java.net.DatagramSocket.send(DatagramSocket.java:611) at org.apache.log4j.helpers.SyslogWriter.write(SyslogWriter.java:77) at org.apache.log4j.helpers.QuietWriter.write(QuietWriter.java:47) at org.apache.log4j.helpers.SyslogQuietWriter.write(SyslogQuietWriter.java:53) at org.apache.log4j.net.SyslogAppender.append(SyslogAppender.java:254) at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:230) at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:65) at org.apache.log4j.Category.callAppenders(Category.java:203) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.debug(Category.java:257) at net.horde.pv.PV.main(PV.java:114) The following patch should prevent the exception: Index: SyslogWriter.java =================================================================== --- SyslogWriter.java (revision 321351) +++ SyslogWriter.java (working copy) @@ -79,7 +79,7 @@ DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, SYSLOG_PORT); - if (this.ds != null) { + if (this.ds != null && this.address != null) { ds.send(packet); } // clean up for next time -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
