sudo apt-get purge icedtea-* openjdk-*Ĭheck that all OpenJDK packages have been removed. To remove openjdk: sudo apt-get purge openjdk* First check which OpenJDK packages are installed. Most of us believe that uninstalling Java is a difficult task in Linux, but it’s not as per my opinion, because I have installed Java on various distributions several times and removed it safely without any problems. Then do sudo update-alternatives -config java How to Uninstall (Oracle Java & openJDK) in Linux by Magesh Maruthamuthu - 17 Comments. The next 2 commands must be type excatly perfectly to avoid Details of openjdk-11-jre-headless package Package: openjdk-11-jre-headless Architecture: amd64 Version: 11.0.16+8-0ubuntu120. Verify that the symlinks were removed java -version Learn how to uninstall openjdk-11-jre-headless package: sudo apt remove openjdk-11-jre-headless Copy sudo apt autoclean & sudo apt autoremove Copy 3. java -version To completely erase OpenJDK, use: sudo apt purge openjdk-11- Watch Super Bowl LVII live on FOX Sunday Feb 12. ![]() Sudo update-alternatives -remove "javaws" "/usr/lib/jvm/jdk/bin/javaws" This video will show you How to uninstall Java from Ubuntu. Sudo update-alternatives -remove "javac" "/usr/lib/jvm/jdk/bin/javac" So if your version is 1.7.0_03, you would type sudo update-alternatives -remove "java" "/usr/lib/jvm/jdk1.7.0_03/bin/java") sudo update-alternatives -remove "java" "/usr/lib/jvm/jdk/bin/java" (replace the word (version)with your Java version. Uninstall Java If for any reason you want to uninstall the Java package, you can uninstall it like any other package installed with apt. To check the setup before uninstalling Java. If the command above produces any output like /path/to/jre1.6.0_34/bin/pack200 remove the directory that is parent of bin, like this: sudo rm -rf /path/to/jre1.6.0_34. ![]() Search for possible remaining Java directories: sudo updatedb Remove Java entries, if there is still any, from the alternatives: for g in ControlPanel java java_vm javaws jcontrol jexec keytool mozilla-javaplugin.so orbd pack200 policytool rmid rmiregistry servertool tnameserv unpack200 appletviewer apt extcheck HtmlConverter idlj jar jarsigner javac javadoc javah javap jconsole jdb jhat jinfo jmap jps jrunscript jsadebugd jstack jstat jstatd native2ascii rmic schemagen serialver wsgen wsimport xjc do sudo update-alternatives -remove-all $g done Remove manually installed JVMs: sudo rm -rf /usr/lib/jvm/* ![]() Note that the procedure has been verified in RHEL 6.4 64bit minimal server. Remove Java config and cache directory: sudo bash -c 'ls -d /home/*/.java' | xargs sudo rm -rf This article outlines a procedure that can be used to uninstall OpenJDK and install Oracle JDK in preparation of a host for installing CafeX software. Remove all the Java related packages (Sun, Oracle, OpenJDK, IcedTea plugins, GIJ): dpkg-query -W -f='$' | xargs sudo apt-get -y purge
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