Remotely debug tomcat on linux

Create this simple shell script: debugtomcat.sh

#leave this command for future reference
#export currentdir=`pwd`
export JAVA_OPTS='-Xmx1024m -XX:MaxPermSize=512m 
-Xdebug -Xrunjdwp:transport=dt_socket,
address=8000,server=y,suspend=n'
echo JAVA_OPTS: $JAVA_OPTS
/$HOME/MyPrograms/apache-tomcat-6.0.35/bin/catalina.sh run

resource

svn ignore list commands

• % set SVN_EDITOR=notepad
  
• % svn propedit svn:ignore .
  
• % svn propget svn:ignore .
  

Decrease the double click speed for Java Applications on Ubuntu Linux

I couldn't properly use double click on idea so I found a great solution in this post.
To resume:

In your home directory create a file called .Xresources and add the following line

*multiClickTime: 400

Then from the commandline execute

xrdb ~/.Xresources

It's amazing that intellij doesn't take in account this issue.

Serving jboss logs as static content

This configuration has been tested using red hat linux and jboss 5.1.x

1. Edit the
   <jboss_home>/server/default/deployers/jbossweb.deployer/web.xml
   and change the servlet attribute listings from false to true.
   
2. Edit the
   <jboss_home>/server/default/deploy/jbossweb.sar/servlet.xml
   and add the attribute allowLinking="true" to the Context element.
   
3. Create a log folder in the path
   <jboss_home>/server/default/deploy/ROOT.war
   
4. In the log folder create a symbolic link to the log folder of jboss
   $ ln -s ../../../log listAll
   
5. Restart the jboss instance
   
6. The logs will be available at this url http://myHost:8080/log/listAll
   

Links
Enable symlinks
Enable directory browsing

The thin red line - quotes

quotes

We'll meet again some day.
People who have been as close as we've been
always meet again.

no words

Jboss - Port already in use: 1098

I got this exception after started jboss 5.1 on windows XP.

ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) 
Error installing to Start: name=jboss:service=Naming 
state=Create mode=Manual requiredState=Installed
java.rmi.server.ExportException: Port already in use: 1098; 
nested exception is: 
 java.net.BindException: Address already in use: JVM_Bind

I tried to understand which process was using that port by running this command:

$> netstat -a -o -n

But the result didn't show any port associated to 1098.
Finally I edited the file at <jboss_51_home>\server\default\conf\bindingservice.beans\META-INF\bindings-jboss-beans.xml
and changed the value of the port 1098 to 10980 and the error has disappeared.
Windows and Jboss ...such a nightmare.
Here the link where I found the solution.

Nice java client to execute remote ssh

http://www.journaldev.com/246/java-program-to-run-shell-commands-on-ssh-enabled-system
Just add this dependency at your pom.xml

    <dependency>
     <groupId>com.jcraft</groupId>
     <artifactId>jsch</artifactId>
     <version>0.1.42</version>
    </dependency>

Stop jboss in the case it's running

If you need to stop jboss inside a shell script this block of code could be useful.

if ps -ef | grep "<jboss_home>/bin/run.jar" | grep -v grep
   then
      echo [deploy] Stopping Jboss...      
      <jboss_home>/bin/shutdown.sh -S --server=localhost:1199
      sleep 12s
   else
      echo [deploy] Jboss was already stopped
      sleep 2s
fi