Working With Hadoop: localhost: Error: JAVA_HOME is not set
I am using hadoop 1.1, and faced the same problem. I got it solved through changing JAVA_HOME variable in /etc/hadoop/hadoop-env.sh as: export JAVA_HOME=/usr/lib/jvm/<jdk folder>
java-home
Difference between JAVA_HOME and JRE_HOME
Tomcat enables some additional debugging options at start up if you are running with a full JDK. These options require the JDK so you Tomcat checks you are actually using one if you claim that you are to ensure these options don’t fail if used. I rarely see these options being used. I think I … Read more
How do I change the JAVA_HOME for ant?
You could create your own script for running ant, e.g. named ant.sh like: #!/bin/sh JAVA_HOME=</path/to/jdk>; export JAVA_HOME ant $@ and then run your script. $ chmod 755 ant.sh $./ant.sh clean compile or whatever ant target you wish to run
How to set environmental variables using Ansible
Yes, there is a cleaner way. You can set environment variables per task: tasks: – shell: echo JAVA_HOME is $JAVA_HOME environment: JAVA_HOME: /usr/java/jre1.8.0_51 register: shellout – debug: var=shellout Output: TASK: [shell echo JAVA_HOME is $JAVA_HOME] ********************************** changed: [localhost] TASK: [debug var=shellout] **************************************************** ok: [localhost] => { “var”: { “shellout”: { “changed”: true, “cmd”: “echo JAVA_HOME … Read more
SET JAVA_HOME to reflect jenv java version
Try the “export” plugin: jenv enable-plugin export You can check the Export plugin section in Readme.md at the jEnv Github repo (https://github.com/gcuisinier/jenv)
Wrong JAVA_HOME after upgrade to macOS Big Sur v11.0.1
Seems in macOS Big Sur v11.0.1 the behavior of the /usr/libexec/java_home -v … command has changed: it is sensitive to the previously set value of JAVA_HOME environment variable. Exact behavior is not clear, I couldn’t find any documentation on this, but in my experiments it reported the version already set in JAVA_HOME, regardless of the … Read more
Java_home in Maven
No, it’s not wrong. It is pointing to the JRE used by your JDK, which is what it’s supposed to. If you print out JAVA_HOME outside maven, it should print correctly: C:\>echo %JAVA_HOME% C:\Program Files\Java\jdk1.7.0_07 C:\>mvn -version Apache Maven 3.0.4 (r1232337; 2012-01-17 10:44:56+0200) Maven home: C:\APPS\apache-maven-3.0.4\bin\.. Java version: 1.7.0_07, vendor: Oracle Corporation Java home: C:\Program … Read more
How to use gradle properties in build.gradle
project.properties is a Map<String, ?> So you can use project.properties[‘org.gradle.java.home’] You can also use the property() method (but that looks in additional locations): project.property(‘org.gradle.java.home’)
“Unable to locate tools.jar” when running ant [duplicate]
There are two directories that looks like JDK. C:\Program Files\Java\jdk1.7.0_02 C:\Program Files (x86)\Java\jdk1.7.0_02\ This may be due to both 64 bit and 32 bit JDK installed? What ever may be the case, the java.exe seen by ant.bat should from the JDK. If the JRE’s java.exe comes first in the path, that will be used to … Read more
How to change JAVA.HOME for Eclipse/ANT
In Eclipse the Ant java.home variable is not based on the Windows JAVA_HOME environment variable. Instead it is set to the home directory of the project’s JRE. To change the default JRE (e.g. change it to a JDK) you can go to Windows->Preferences… and choose Java->Installed JREs. To change just a single project’s JRE you … Read more