Maven error Perhaps you are running on a JRE rather than a JDK

Question

I ve never worked with Maven before and I am following the instructions here  When I run the command  mvn integration-test -Pamp-to-war   It initially downloaded a whole bunch of dependencies  and in the end it showed    COMPILATION ERROR     INFO  -------------------------------------------------------------  ERROR  No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK   INFO  1 error   I am on ubuntu 13 04   If there s anything you want me to tell you  let me know  Thanks   EDIT  When I do echo  JAVA HOME I get  usr lib jvm java-7-openjdk-i386   When I do mvn -version  I get    Apache Maven 3 0 4 Maven home   usr share maven Java version  1 7 0 25  vendor  Oracle Corporation Java home   usr lib jvm java-7-openjdk-i386 jre Default locale  en US  platform encoding  UTF-8 OS name   linux   version   3 8 0-26-generic   arch   i386   family   unix    Also  I found out this problem faced by someone else  But I am not sure how to go about the solution that is specified   Further edits    kraken kraken-Inspiron-1545  usr lib jvm java-7-openjdk-i386  ls -l total 12 drwxr-xr-x 2 root root 4096 Sep  9 10 44 bin lrwxrwxrwx 1 root root   41 Jul  4  2013 docs - gt           share doc openjdk-7-jre-    headless drwxr-xr-x 5 root root 4096 Oct 13  2013 jre drwxr-xr-x 4 root root 4096 Oct 13  2013 man

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I was facing the same issue   I needed to place the JDK before the JRE in PATH in order to resolve

User · Answer

This is how i fixed my problem  right clik on the project   properties   Java Compiler  select the one you are using   it was 1 5 for me but i have 1 8 installed  so i changed it to 1 8   and voilla it worked

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I was facing the same issue in eclipse maven project  all i did was right click on the project maven --  update project or just press ALT  F5

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In Installed JREs path see if there is an entry pointing to your JDK path or not  If not  click on Edit button and put the path you configured your JAVA HOME environment  Eclipse Path  Window   Preferences   Java   Installed JREs

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For me  it worked like following  Please look at JAVA HOME environment variable  whether it is pointing to JRE or JDK    If it pointed to JRE  you will face  Perhaps you are running on a JRE rather than a JDK  issue  if so change the path to JDK   Modifying like this  it worked for me   JAVA HOME C  Program Files Java jdk1 8 0 31

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Just adding more details on where to setup   Main reason would be the JAVA HOME setup in the environment variable should be pointing to correct JDK location          Check System -  Advance System Settings   Click on Environment variable    Add variable JAVA HOME -   C  Program Files Java jdk1 8 0 141     Edit  path  -  append  JAVA HOME   to the existing text

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I ve been facing the same issue with java 8  ubuntu 16 04   trying to compile using mvn command line   I verified my  JAVA HOME  java -version and mvn -version  Everything seems to be okay pointing to  usr lib jvm java-8-openjdk-amd64   It appears that java-8-openjdk-amd64 is not completly installed by default and only contains the JRE  despite its name  jdk     Re-installing the JDK did the trick   sudo apt-get install openjdk-8-jdk   Then some new files and new folders are added to  usr lib jvm java-8-openjdk-amd64 and mvn is able to compile again

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Problem statement    No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK   Solution  Please set the Environment variable like below to solve the issue  Variable name   JAVA HOME  Variable Value    C  Program Files Java jdk1 8 0 202  Variable name   M2 HOME  Variable Value    C  Program Files apache-maven-3 6 0  Moreover  Add Java and maven path in  System Variables  like below    C  Program Files Java jdk1 8 0 202 bin C  Program Files apache-maven-3 6 0 bin

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I had the same error and I was missing the User variable  JAVA HOME and the value for the SDK -  C  Program Files Java jdk-9 0 1  in my case

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Check if  usr bin has  javac   If not you have installed JRE  amp  have to install jdk dev version like  java-1 8 0-openjdk-devel x86 64

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I faced the issue even though JAVA HOME was pointing to JDK  It took time to figure out why it was throwing the exception   The issue was I set JAVA HOME as admin user on my window machine  You need to add JAVA HOME environment variable pointing to right JDK to your user profile environment variable settings

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I had the same issue after installing the java-1 8 0-openjdk package on an AWS Linux AMI  The incorrect assumption I made  was that because the file ended in openjdk it would be the jdk version  This is not the case    The openjdk install page explains everything clearly       The java-1 8 0-openjdk package contains just the Java Runtime   Environment  If you want to develop Java programs then install the   java-1 8 0-openjdk-devel package    If you ve already installed the java-1 8 0-openjdk package  just leave it and the JAVA HOME value if it s working for the JRE and install the java-1 8 0-openjdk-devel package using yum install java-1 8 0-openjdk-devel -y

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Add this configurations in pom xml   lt project     gt               lt build gt                       lt plugins gt               lt plugin gt                   lt artifactId gt maven-compiler-plugin lt  artifactId gt                   lt version gt 3 1 lt  version gt                   lt configuration gt                       lt source gt 1 7 lt  source gt                       lt target gt 1 7 lt  target gt                       lt fork gt true lt  fork gt                       lt executable gt C  Program Files Java jdk1 7 0 79 bin javac lt  executable gt                   lt  configuration gt               lt  plugin gt           lt  plugins gt       lt  build gt           lt  project gt

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This is because of running jre rather than jdk  to install jdk follow below steps  Installing java 8 in amazon linux redhat -- gt  yum search java   grep openjdk -- gt  yum install java-1 8 0-openjdk-headless x86 64 -- gt  yum install java-1 8 0-openjdk-devel x86 64 -- gt  update-alternatives --config java  pick java 1 8 and press 1 -- gt  update-alternatives --config javac  pick java 1 8 and press 2 Thank You

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For solving my issue on Linux don t have a JDK  I just download the JDK and upload to the Linux server  and type  tar xvf jdk-8u45-linux-x64 tar gz

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If the above solutions doesn t work then try to place java path before maven in path of environment variable  It worked for me    JAVA HOME  bin  C  Program Files apache-maven-3 6 1-bin apache-maven-3 6 1 bin

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Here s my automatic solution     This will follow your javac executable s symlink  setup by yum and or alternatives --config java  backwards to find the JAVA HOME   Toss this in your in your  etc profile    export JAVA HOME   readlink -f  usr bin javac   sed  s  bin javac        If you wanted a stable path  refreshed on boot  launch something like this   export JAVA HOME   readlink -f  usr bin javac   sed  s  bin javac      ln -sfn    JAVA HOME    usr lib jvm jdk-current   I m kinda shocked the latter still isn t baked into alternatives

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Apparently  it requires tools jar file inside the lib folder of my  JAVA HOME  I did not have the lib folder  so I reinstalled my jdk using command   apt-get install openjdk-7-jdk openjdk-7-doc openjdk-7-jre-lib   Also  this link may help some people

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i am using centos and getting same error when run mvn command with goal  install  After some googling i have found the solution to run following command   sudo yum install java-1 8 0-openjdk-devel

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Right click on your project folder  Maven one   select properties and from the properties window  again select Java Compiler and see what is selected against compiler compliance level and make sure that it is the same version as your jre  In my case I had 1 8 but 1 5 was selected against compiler compliance level  After selecting 1 8 the build was successful without this error

[java] Maven error :Perhaps you are running on a JRE rather than a JDK?

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