After changing the IP address on my machine, I can no longer debug locally

Abstract: After changing the IP address on my machine, I can no longer debug locally

Issue:

After changing the static IP on my local machine, I am no longer able to debug locally in JBuilder. The activity monitor appears with the message, "Initializing the Java virtual machine." After a while, an error message appears in the message pane:

\-- Cannot start Java debug process VM --
com.sun.jdi.connect.VMStartException: VM initialization failed for: /home/uname/JBuilderX/jdk1.4/bin/java -classpath "/home/uname/jbproject/untitled1/classes:/home/uname/JBuilderX/jdk1.4/demo/jfc/Java2D/Java2Demo.jar:/home/uname/JBuilderX/jdk1.4/demo/plugin/jfc/Java2D/Java2Demo.jar:/home/uname/JBuilderX/jdk1.4/jre/javaws/javaws.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/charsets.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/ext/dnsns.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/ext/ldapsec.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/ext/localedata.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/ext/sunjce_provider.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/im/indicim.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/im/thaiim.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/jce.jar:/home/suleyman/JBuilderX/jdk1.4/jre/lib/jsse.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/plugin.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/rt.jar:/home/uname/JBuilderX/jdk1.4/jre/lib/sunrsasign.jar:/home/uname/JBuilderX/jdk1.4/lib/dt.jar:/home/uname/JBuilderX/jdk1.4/lib/htmlconverter.jar:/home/uname/JBuilderX/jdk1.4/lib/tools.jar" -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=hostname.mydomain.com:44089,suspend=y untitled1.Untitled1
Error [110] in connect() call!
err:: Connection timed out
Socket transport failed to init.
Transport dt_socket failed to initialize, rc = -1.

Solution:

Open the hosts file and verify that the existing mapping is not set to the old IP address. If it is, edit the mapping so that it refers to the new IP address and save the file. Then retest local debugging in the IDE.

The hosts file under Windows is located in:

c:/Windows/System32/drivers/hosts

The hosts file under Linux is located in:

/etc/hosts