Exception launching jdeveloper in linux

Question

Hi Friends,
i am installing the jdeveloper version 11.1.1.7 on linux where i am encountering some unusual errors . Unusual because i have not faced these error in the earlier versions
- on launching the jdeveloper in linux I encounter the following
java.net.UnknownHostException: girishpar-pc: girishpar-pc
    at java.net.InetAddress.getLocalHost(InetAddress.java:1354)
    at oracle.ideimpl.webupdate.CheckMasterListRunnable.buildLocalHostNames(CheckMasterListRunnable.java:53)
    at oracle.ideimpl.webupdate.CheckMasterListRunnable.<init>(CheckMasterListRunnable.java:39)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates$2.<init>(AutomaticCheckForUpdates.java:100)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates.checkMasterList(AutomaticCheckForUpdates.java:99)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates.access$000(AutomaticCheckForUpdates.java:42)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates$1.run(AutomaticCheckForUpdates.java:87)
    at java.lang.Thread.run(Thread.java:662)
log4j:WARN No appenders could be found for logger (org.apache.commons.httpclient.HttpClient).
log4j:WARN Please initialize the log4j system properly. "
I ignored the same and continued to the GUI of jdeveloper and tried configuring the default domain of the Integrated WLS where i encountered the following
Performing action New Application...[ from oracle.ide.navigator.ApplicationNavigatorWindow ]
Invoking command: [ from oracle.ide.navigator.ApplicationNavigatorWindow ]
Performing action Application Server Navigator[ from oracle.ide.navigator.ApplicationNavigatorWindow ]
oracle.jps.common:Sep 16, 2013 2:47:54 PM oracle.security.jps.internal.common.util.StrictValidationEventHandler handleEvent
WARNING: Invalid xml content was found. SchemaLocation: schemaLocation value = 'http://xmlns.oracle.com/oracleas/schema/11/jps-config-11_1.xsd' must have even number of URI's. Location: unavailable.
What i tried ---
- installing using root user
- i deleted/renamed the system folders and tried however no change in the status .
- i tried a custom install also and added jdk separately
- i deleted the default domain and tried to set it up manually
Any Help is appreciated thanks
Cheers
Girish

Answer 1

Hi Hi,
java.net.UnknownHostException: girishpar-pc: girishpar-pc
    at java.net.InetAddress.getLocalHost(InetAddress.java:1354)
    at oracle.ideimpl.webupdate.CheckMasterListRunnable.buildLocalHostNames(CheckMasterListRunnable.java:53)
    at oracle.ideimpl.webupdate.CheckMasterListRunnable.<init>(CheckMasterListRunnable.java:39)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates$2.<init>(AutomaticCheckForUpdates.java:100)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates.checkMasterList(AutomaticCheckForUpdates.java:99)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates.access$000(AutomaticCheckForUpdates.java:42)
    at oracle.ideimpl.webupdate.AutomaticCheckForUpdates$1.run(AutomaticCheckForUpdates.java:87)
    at java.lang.Thread.run(Thread.java:662)
log4j:WARN No appenders could be found for logger (org.apache.commons.httpclient.HttpClient).
log4j:WARN Please initialize the log4j system properly. "
If im not mistaken, the error is because you do not have your computer name in your host file.
Generally this file is /etc/hosts
But this location and name varies on Linux Distors.
Regards
Bjorn