No compiler is provided in this environment Perhaps you are running on a JRE rather than a JDK

Question

I m compiling a project in Eclipse using m2eclipse  I set the JDK path in Eclipse like this   Windows-- gt preferences-- gt installed jres-- gt  jdk1 7 xx  path   But this is showing an error   ERROR  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  INFO  -------------------------------------------------------------  INFO  ------------------------------------------------------------------------  INFO  BUILD FAILURE  INFO  ------------------------------------------------------------------------  INFO  Total time  1 424s  INFO  Finished at  Tue Oct 29 15 21 01 IST 2013  INFO  Final Memory  5M 15M  INFO  ------------------------------------------------------------------------  ERROR  Failed to execute goal org apache maven plugins maven-compiler-   plugin 3 1 compile  default-compile  on project TEST-WEB  Compilation failure  ERROR  No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK

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I was getting the same error when I created a new EC2 ubuntu 16.04 instance with Java already installed on it and while running mvn clean package, I encountered this issue and the below solution worked for me.

If you are working on an Ubuntu server, then you can try installing Java again and for that you can use this answer How to install the JDK on Ubuntu Linux

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On your Eclipse IDE  go into Window   Preferences   Java   Installed JREs   and check your installed JREs  You should have an entry with a JDK there   Select the Execution Env as show below  Click OK Then Right-Click on your Project  -  Maven -  Update Project   Additionally  you may have to change Maven JRE  see  jlars62 answer  which is as follows  Goto Run -  Run Configurations  selecting the Maven Build I was running  from the left panel   Then  I clicked the JRE tab and selected the option Workspace default JRE

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There are several options to specify   Steps  Right on project in project explorer Go to Run-  Run Configuration -  Click Maven Build -  Click on your build config or create a new config   You will see the window as the given snapshot below  click on JRE tab there    You see you have 3 options 1  Workspace Default JRE 2 Execution Environment 3 Alternate JRE  1  Workspace Default JRE is set from  Window  menu on the top -  Preferences -  Java -  Installed JREs -Here you can add your jdk  2  Execution Environment jdk can be set in pom xml as mentioned by  ksnortum    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 fork gt true lt  fork gt               lt executable gt C  Program Files Java jdk1 7 0 45 bin javac exe lt  executable gt           lt  configuration gt       lt  plugin gt   lt  plugins gt      3  Alternate JRE can be used to select a jdk from your directory

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Add new JRE definition  select path JDK   worked for me   http   help eclipse org neon index jsp topic  2Forg eclipse jdt doc user 2Ftasks 2Ftask-add new jre htm

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There are several answers regarding this question but all are related to right path configuration of JDK  but with JRE only we can solve this problem    We just need to make use of deployment assembly to configure the path of packaged war file of the Java EE Project and then re-run the maven-install    Steps to make use of deployment assembly     Right click on the Jave EE project --  click on Properties     --  click on Deployment Assembly Click on Add button --  Click on Archives from the File     System --  Click on next --  Click on Add --  Go to the      m2 respository directory and search for the war file generated --      Select war file --  Click on Open button --  Click on Apply --  OK Right click on the project --  Click on Maven Install under     Run As   This will build your project successfully  without any compiler error    Hope this solves the problem without JDK

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Try this    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 fork gt true lt  fork gt                   lt executable gt  path to jdk  bin javac exe lt  executable gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt

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I was getting this error when trying to do a maven build from within eclipse    For me  the answer was going to Run -  Run Configurations  selecting the Maven Build I was running  from the left panel   Then  I clicked the JRE tab and selected the option Workspace default JRE

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I just wasted 3 hours with this problem until I managed to make it work  I had this error in the Eclipse Terminal when issuing a mvn compile command   No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK   So I read here that I have to make a new system variable called JAVA HOME and make it point towards the jdk installation folder  However this generated another error   Source option 1 5 is no longer supported  Use 1 6 or later  Couldn t find a fix for this one so     So the fix to make it all go away is install Java SE Development Kit 8   I was using 9 thinking that if it s the latest it must be better     Anyway      Uninstall all java versions from your computer Install JDK8 from here  http   www oracle com technetwork java javase downloads jdk8-downloads-2133151 html Then define the JAVA HOME system environmental value - tutorial here  https   docs oracle com cd E19509-01 820-3208 inst cli jdk javahome t  Restart Eclipse and enjoy   at least that s what I did    Hoping this spares some poor wanderer of some trouble

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In my case it was solved by doing this    Go to your  Runtime Configuration  and configure your JRE to an JDK       I copied answer just in case it is deleted for some reason  but the source is here

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right click on your project and run as maven install then again run your application  if this didnt work go to the folder of your project directly start command line and run  mvn install

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Though the question is about the error with Eclipse setup but thought an answer of fixing this error with IntelliJ and Windows 10 setup may also be helpful here    1  Go to File --  Settings --  Build  Execution  Deployment --  Build Tools --  Maven --  Importing  2  Set JDK for Importer as shown below to JAVA HOME    Also JAVA HOME should be set to JDK path at Environment Variables --  System variables and also add  JAVA HOME  bin to Path System variables

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I tried most of the answers without success   What worked for me was  after following https   stackoverflow com a 21279068 2408893     right click on project -  Properties select Java Build Path select the JRE System Library  click edit  In execution environment select a jdk      click Finish build and run

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In addition to answer above  I could say that just try to run Maven from the terminal  outside of Eclipse   In this way  if it builds from outside but not in Eclipse  you can understand that the problem should be in Eclipse

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Problem statement   No compiler is provided in this environment  Perhaps you are running on a JRE rather than a JDK  intellij  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 got same issue and i just add JAVA HOME to environment variables      If you are using eclipse  just refer https   stackoverflow com a 21279068 6097074 If you are using intellij  just after adding JAVA HOME open command prompt from project directory and run mvn clean install don t use intellij terminal

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If you are running the Maven command from cmd  make sure you set the jdk path before running the command  In my case  I have created a  bat file containing the following   set JAVA HOME C  Program Files Java jdk1 8 0 60 start cmd exe  k  cd c  aem proj sis aau

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I got a solution   The most common solution for this problem is to change jdk location as my Installed JREs instead of the JRE location but that did not solve my problem this one time   So I did the below to solve the problem  Expand the Installed JREs tab and you will find a Execution environments tab   Click on your favourite execution environment  In my case it was JAVASE-1 8  There it shows 2 options  JDK and JRE  Select JDK there and the problem is solved

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In my case I had system variable path has  C  ProgramData Oracle Java javapath  location   In  C  ProgramData Oracle Java javapath  location java  javaw only there  So I am getting the same error    Once I removed all files in  C  ProgramData Oracle Java javapath  folder my error got resolved

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Go to windows - gt  Preferences - gt  Java - gt  Installed JREs  may be jre is already added   click on Add - gt  Standard VM - gt  Next - gt  Directory  and browse for the JDK in my case path was C  Program Files Java jdk1 8 0 111  then Click on finish   you will see window like this  select JDK - gt  Apply - gt  Ok  And You are done

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For me  it is exactly what the maven of eclipse complains    So  I press Edit button and change path to the JDK Folder  then clean project and everything starts to work

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I faced the same issue while trying to build a jar file of my project application using mvn clean install  though the application was working fine while running from Eclipse   The issue was  indeed too naive  that I had not set the JAVA HOME environment variable  All I had to do is set JAVA HOME environment variable to JDK directory  make sure it is not till   bin  and without semi-colon         How I understood it is as    The application worked fine in Eclipse as JRE System Library was referring to JRE inside the JDK folder instead of external JRE folder without JDK   As explained very well in other answers    This configuration does not apply to maven command that we run on command prompt  It will still look for JAVA HOME variable to access the JRE System library and when it is not found it refers to external JRE folder without JDK

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An alternative if jaipster s answer does not work is to go to  Window   Preferences   Java   Installed JREs  Then to edit the jre so that it points to the jdk and not the jre  the jre home filed in the jre package editor   That worked for me

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For me the JRE was in the PATH environment variable before the JDK path   C  ProgramData Oracle Java javapath C  env jdk1 8 0 151 bin   So I removed 1  Probably swapping them would fix it too

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Are you missing any maven build   Apart from above JRE changes I still faced similar issue I was missing JUnit dependency after adding it is working fine   Hope this will help

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I went to Preferences --  Java --  Installed JREs I did NOT see the JDK in here  I only saw the JRE here  So I added the JDK   here we have to mandatory remove JRE instead of just unchecking

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My answer pertains to the Eclipse in Windows environment   I went to Preferences --  Java --  Installed JREs I did NOT see the JDK in here  I only saw the JRE here  So I added the JDK and then unchecked the JRE  Then checked JDK  Then I ran the POM file using Run Configurations  Choose the tab JRE and select the option  Workspace Default     Here are the images

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I did the following change and it worked for me Hope it helps someone

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There is another possible answer to this question  and I may be the only person foolish enough to have stumbled upon this  but I think it s worth adding  since none of the other answers applied as I already had those settings correct   When you install a JDK  the installer asks you where you want to install the files  By default  on Windows  this is something like C  Program Files Java jdk1 8 0 74  or whatever version you are installing    It then asks you for a directory to install the JRE to  which by default is something like C  Program Files Java jre1 8 0 74   Note that one is jdk1 8 0 74 and the other is jre1 8 0 74  I was rushing things  and thinking the installer was asking me the same question twice  set both my JDK and JRE install locations to D  devtools jdk jdk1 8 0 74  resulting in the installer overwriting the JDK with the JRE  This resulted in  among other things  a missing javac exe in my JDK bin  and the same error the OP reported here in all my maven builds

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Set the JAVA HOME environment variable to the JDK root folder -  required if you run command line or maven  mvn      Search google for JAVA HOME for more info   In project properties in section Java Compiler select required JDK - if you run directly from eclipse

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In Windows 7 - 64 bit  there is a permissions problem which prevents the installer from unpacking the file C  Program Files Java jdk1 6 xx lib tools jar into your local  This jar file is what maven-compiler-plugin version 3 x uses instead of the usual javac  Solution  Run  as an administrator  the Java JDK installer  And make sure the tools jar is sitting in the C  Program Files Java jdk1 6 xx lib   In case you are using m2e maven integration plugin  you want to see the file is visible to Eclipse via the following steps inside Eclipse   Go to Window -  Preferences -  Java -  installed JREs Select the JDK you are using  C  Program Files Java jdk1 6 xx  Press Edit to see the list of jars including tools jar  OR you can add it as Add External JAR Then configure the maven run through these steps   Run- Run configurations- Fill in Name  Base directory and Goals  Then in the same window move to the JRE tab and point to the JDK  jdk1 6 xx

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I tried all of the above  however  still getting the same error message    In my case an actual JRE was incorrectly used as JRE System Library in the project-specific build path which was obviously overriding all those other settings discussed here   If that is so in your case try the following    Open the project-specific libraries of the Java Build Path  Right-click  Project   Build Path   Configure Build Path     and select  Libraries  tab   Select the  JRE System Library  entry and hit  Remove   Hit  Add Library       A wizard pops up  Select  JRE System Library  and hit  Next     Now select the correct JDK  in my case  Workspace default JRE   which I configured using a JDK   Close wizard by hitting  Finish   Close  Properties  dialog by hitting  OK

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For me  nothing worked until I made this change to my pom xml    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 fork gt true lt  fork gt                   lt executable gt C  Program Files Java jdk1 7 0 45 bin javac exe lt  executable gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    Other Notes  I could see that m2e was executing in a JRE  not the JDK   Nothing I did changed this  including adding this to the eclipse ini   -vm C  Program Files Java jdk1 7 0 45 bin javaw exe   In the end I never got m2e to execute in a JDK  but setting the Java compiler explicitly  as above  did the trick

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i faced the same issue  the mistake i made was i added jre path only in the path var not jdk path  When jdk path was added to path and build the maven project its working perfect  Thanks all

[java] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

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