I'm getting this error when I try a Jenkins build on a maven project:
No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
The java and maven plugin are installed automatically, after several research, I couldn't find a solution!
Does anyone have ever face this issue?
Go To Jenkins -> Manage Jenkins -> Global Tool Configuration -> JDK. Provide path to the JDK under JAVA_HOME field.
First make sure the your Job in Jenkins doesn't use the "default Jdk" by going to the job:
Press on Configure - > and roll to the JDK section - and make sure you have JDK configure instead of Default.
if you don't have it - go back to Jenkins - > Manage Jenkins -> Configure System - > Jdk and map your Jdk Root for Jenkins.
when you finish that - go back and choose your map JDK - and everything will work.
Go To Jenkins -> Manage Jenkins -> Global Tool Configuration.
Now click on "JDK installations.." under JDK
Uncheck Install automatically
Provide path to the JDK under JAVA_HOME field.
Refer:-
May be this issue is already resolved by now. But I had the same issue recently and I have the following settings in my Jenkins. This happened in my Windows 10 Jenkins installation.
Installed JDK at C:\Java\Jdk8 and made JAVA_HOME point to this location. Also make sure that PATH env variable has %JAVA_HOME%\bin.
Installed JRE (which comes bundled with Oracle JDK installation) at C:\Program Files\Java\JRE.
Jenkins -> Manage Jenkins -> Configure System
Jenkins -> Manage Jenkins -> Global Tool Configuration
# javac -version
javac 1.8.0_201
# java -version
java version "1.8.0_201"
Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)
# mvn -v
Apache Maven 3.6.0 (97c98ec64a1fdfee7767ce5ffb20918da4f719f3; 2018-10-24T14:41:47-04:00)
Maven home: C:\apache-maven-3.6.0\bin\..
Java version: 1.8.0_201, vendor: Oracle Corporation, runtime: C:\Java\jdk8\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
I believe the change that fixed the problem was the addition of env variables under Manage Jenkins -> Configure System.
Enter http://localhost:8080/configure. Then go Jenkins Location.
Jenkins Configuration:
Environment variable configuration:
You might not have set JAVA_HOME in Jenkin installed server. Set JAVA_HOME and restart your Jenkin server.
According to your error message you either do not have a JDK installed or you need to configure Jenkins's CLASSPATH to point to your JDK installation.
Just give the JDK path in Jenkins Global Tool configurations, i.e the path where we have kept the jdk file in the di
IF you don't want to add anythig in Global tools Configuration, add new environment variable java.home in the Jenkins slave configuration as maven detects java.home and not JAVA_HOME.
java.home ---> C:\Java\jdk1.8.0_181\jre
Related
we have jenkins slaves started by ec2 plugin. We keep on seeing java version being set to 265 when a new node is started
but slaves don't even have java-1.8.0-openjdk-1.8.0.265.b01-1.amzn2.0.1.z86_64 in /usr/lib/jvm/
ls /usr/lib/jvm/
java
java-1.8.0
java-1.8.0-openjdk
java-1.8.0-openjdk-1.8.0.312.b07-1.amzn2.0.2.x86_64
java-openjdk
jre
jre-1.8.0
jre-1.8.0-openjdk
jre-1.8.0-openjdk-1.8.0.312.b07-1.amzn2.0.2.x86_64
jre-openjdk
I checked all the non-jre's directories, they are all 312 versions, java -version shows 312, master has java 1.8.66. And I am lost how this 265 version is set when a new node is added.
there is no JVM version selected on master in any settings as far as I could tell.
help is appreciated. thanks in advance.
You can try following steps:
Check the agent Log to determine the location of remoting directory and remoting.jar in the slave server.
Disconnect agent
Delete both remoting directory and remoting.jar
Launch the agent.
The agent refer to the data present inside the jarCache directory inside remoting.
I am using Jenkins version 2.85 and trying to invoke or add ANT plugin. However, I can't see "Invoke ANT" option under Global Tool Configuration.
I have configured ANT and verified the version as follows.
Apache Ant(TM) version 1.10.1 compiled on February 2 2017
Trying the default build file: build.xml
Buildfile: build.xml does not exist!
Build failed
Kindly let me know how can I get "Invoke ANT" option.
Thanks,
Narasimha
You probably need to install Jenkins ANT plugin for that.
Install Ant Plugin by going to Manage Jenkins -> Manage Plugins -> Available Tab and search for Ant and install all the relevant ant plugin.
Configure ant plugin by going to Manage Jenkins -> Global Tool Configuration.
You'll see an option Ant, either install Ant if you don't have on the local system or if you have ant configured on your local system, directly provide the ANT_HOME.
When I type any Maven command like mvn -version, mvn clean install etc. they are not working. But the same maven installation is working properly in eclipse. In the command prompt I get the below option for all maven commands:
It seems that in your Eclipse, you use different maven installation (maybe embedded one).
Firstly the problem is not with maven itself, but probably with wrong usage of java in maven or java is not set properly. If your maven would be properly installed and configured you should see something like this:
Apache Maven 3.2.5 (12a6b3acb947671f09b81f49094c53f426d8cea1; 2014-12-14T18:29:23+01:00)
Maven home: c:\apache-maven-3.2.5
Java version: 1.7.0_111, vendor: Oracle Corporation
Java home: C:\appl\JDK7\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
please provide some more information about java -version and your environment paths. Also try to look at your mvn.bat.
I want to update jenkins(currently using jdk 6;to upgrade jenkins i need jdk7) but so, many application in my jenkins server use jdk6.So, I cannot update java.So, I want to copy java binary in folder like /home/username/java and I want to make jenkins use /home/username/java while updating.So, the other programs don't get disturbed(Most of them use which java and get the java installation example:maven and some other tools I am not aware of).Is there a config file which can be edited to make jenkins use a java in a specific folder(while installing or updating).
There is a JDK dropdown in "job name" -> Configure in Jenkins web UI. It will list all JDKs available in Jenkins configuration.
You can add new JDKs through Manage Jenkins -> Global Tool Configuration -> JDK.
Here is a visual of where you should configure additional JDKs in Jenkins:
I want to increase the available heap space for Jenkins. But as it is installed as a service I don´t know how to do it.
If you used Aptitude (apt-get) to install Jenkins on Ubuntu 12.04, uncomment the JAVA_ARGS line in the top few lines of /etc/default/jenkins:
# arguments to pass to java
#JAVA_ARGS="-Xmx256m" # <--default value
JAVA_ARGS="-Xmx2048m"
#JAVA_ARGS="-Djava.net.preferIPv4Stack=true" # make jenkins listen on IPv4 address
In your Jenkins installation directory there is a jenkins.xml, where you can set various options.
Add the parameter -Xmx with the size you want to the arguments-tag (or increase the size if its already there).
You need to modify the jenkins.xml file. Specifically you need to change
<arguments>-Xrs -Xmx256m
-Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=8080</arguments>
to
<arguments>-Xrs -Xmx2048m -XX:MaxPermSize=512m
-Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle
-jar "%BASE%\jenkins.war" --httpPort=8080</arguments>
You can also verify the Java options that Jenkins is using by installing the Jenkins monitor plugin via Manage Jenkins / Manage Plugins and then navigating to Managing Jenkins / Monitoring of Hudson / Jenkins master to use monitoring to determine how much memory is available to Jenkins.
If you are getting an out of memory error when Jenkins calls Maven, it may be necessary to set MAVEN_OPTS via Manage Jenkins / Configure System e.g. if you are running on a version of Java prior to JDK 1.8 (the values are suggestions):
-Xmx2048m -XX:MaxPermSize=512m
If you are using JDK 1.8:
-Xmx2048m
I've added to /etc/sysconfig/jenkins (CentOS):
# Options to pass to java when running Jenkins.
#
JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Xmx1024m -XX:MaxPermSize=512m"
For ubuntu the same config should be located in /etc/default
From the Jenkins wiki:
The JVM launch parameters of these
Windows services are controlled by an
XML file jenkins.xml and
jenkins-slave.xml respectively. These
files can be found in $JENKINS_HOME
and in the slave root directory
respectively, after you've install
them as Windows services.
The file format should be
self-explanatory. Tweak the arguments
for example to give JVM a bigger
memory.
https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+as+a+Windows+service