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Environment Environment

Environment

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NoJVM NoJVM

No JVM

On a machine without any defined java, it will look like this. The update-alternatives doesn't display any defined alternatives:

user@machine:~$ update-alternatives --get-selections | grep java

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lucli auto /usr/lib/liblucene2-java/lucli

user@machine:~$ java -version
The program 'java' can be found in the following packages:
* default-jre
* If you try to run java, it doesn't run successfully:

user@machine:~$ java -version
The program 'java' can be found in the following packages:
* default-jre
* gcj-4.8-jre-headless

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* openjdk-7-jre-headless

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* gcj-4.6-jre-headless

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* openjdk-6-jre-headless

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Try: sudo apt-get install <selected

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 package>

The next test will be to use the update-java-alternatives command, to check if we have some installed JVM:

user@machine:~$ sudo update-java-alternatives -l
default-java 1073 /usr/lib/jvm/default-java
java-1.8.0-openjdk-i386 1069 /usr/lib/jvm/java-1.8.0-openjdk-i386
java-8-openjdk-i386 1069 /usr/lib/jvm/java-8-openjdk-i386
java-8-oracle 1070 /usr/lib/jvm/java-8-oracle
ramdisk-java-8-oracle 1073 /usr/lib/jvm/ramdisk-java-8-oracle

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CurrentJVM CurrentJVM

Current JVM

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