![]() ![]() OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode)Īdd the following line to ~/. OpenJDK Runtime Environment 18.9 (build 11.0.2+9) Press to keep the current choice, or type selection number: There are 2 choices for the alternative java_home (providing /opt/java/current). Log Out or restart Ubuntu (this will reload /etc/profile.d/environment.sh) UsageĬhoose the version you want to use ~$ sudo update-alternatives -config java_home ~$ sudo update-alternatives -install /opt/java/current java_home /opt/java/jdk1.8.0_201 200ĭeclare JAVA_HOME (In this case, I use a global initialization script for this) ~$ sudo sh -c 'echo export JAVA_HOME=\"/opt/java/current\" > environment.sh' 15 2018 jdk1.8.0_201/Ĭonfigure alternatives ~$ sudo update-alternatives -install /opt/java/current java_home /opt/java/jdk-11.0.2/ 100 ĭrwxr-xr-x 8 stephanecodes stephanecodes 4096 jan. Install every java version in /opt/java/, for example ~$ ll /opt/java/ĭrwxr-xr-x 6 root root 4096 jan. I use update-alternatives this way, using a java_home alternative instead : Installation Most of the time, when I change my java version, I also want to use the same javac version. Is there a way to confirm that what I have done is correct? So which number should I select to have sun-java as the default runtime?Īlso, what exactly do th auto and manual modes mean? If I select 3 above and run the update-alternative command I receive the same output as above, again nothing seems to have changed except that the * is now in front of the 3, though it still reads manual mode. Sambit at 17:33 2 If your JDK is on your path you should be able to tell by just running 'javac -version'. Open new command prompt and type java -version. Configuring the JAVAHOME environment variable on RHEL 6. Selecting a system-wide archive OpenJDK version 5. Selecting an installed OpenJDK version for a specific application 4. ![]() Non-interactively selecting a system-wide OpenJDK version on RHEL 3. Press enter to keep the current choice, or type selection number: 1 First uninstall all the versions of Java, install Jdk 8. Interactively selecting a system-wide OpenJDK version on RHEL 2. * 0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto modeĢ /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual modeģ /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode Yet when I run this command I get: There are 3 choices for the alternative java (providing /usr/bin/java). Then am told that I should use the command sudo update-alternatives -config java to make sure that a particular java (sun-java) is the default runtime. I have been instructed to install sun-java jdk 1st. And I usually have to do it both for the mac at work and for windows at home, which is quite tedious.I am installing Apache Solr on Linux Debian (Squeeze). So, every time this happens, I need to know where the internal JRE is. Every time I install a new version of IntelliJ IDEA I have to go to the IntelliJ IDEA JRE and execute the keytool to install a certificate into this new JRE so that it can access the internal maven repositories that we use. I find it amazing that IntelliJ IDEA does not seem to readily provide this information. ![]() There is even a button to copy the path to your clipboard. In the dialog that opens you can see the currently selected "Boot JDK". ![]() This will execute the "Switch Boot JDK." action for you, which is not bound to any key by default and it cannot be found in any of the menus.
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