No compiler is provided in this environment. - Eclipse - Maven - java-8-openjdk - Xubuntu

Question

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

I use Eclipse, Maven and java8-openjdk.

I am using JDK not JRE:

Java is located at **/usr/lib/jvm/java-8-openjdk-amd64/**.
The class with main method compiles and runs without a problem.
I was able to build before without any problems.

The runtime version of Eclipse:

java.runtime.version=1.8.0_91-8u91-b14-0ubuntu4~16.04.1-b14

In pom.xml, I have Maven compiler plugin, with version 3.5.1, source and target values 1.8.

What am I missing here ? I have configured correct path. I have JDK. I did builds before and yet Maven is failing now.

Please let me know how to start about finding the root cause and also let me know if any more information is needed. Thanks.

*I was able to build before without any problems.* What changed? — Elliott Frisch, Jul 02 '16 at 13:55
http://stackoverflow.com/questions/21099072/eclipse-maven-error-no-compiler-is-provided-in-this-environment — Stephen C, Jul 02 '16 at 13:55
@StephenC I already have all the settings that are described in that answer. Also I have referred all the questions related to this issue in SO. — Aravamudhan, Jul 02 '16 at 14:11
@ElliottFrisch Nothing. Or nothing I know of. Since the last time I ran a build I was working on a particular file, changing and executing that alone. My doubt is whether I am doing anything fundamentally wrong or missed something. — Aravamudhan, Jul 02 '16 at 14:13
if you're using eclipse to build, try to build from the command line using `mvn package` (execute the command where pom.xml exists) — niceman, Jul 02 '16 at 14:18
What does ```javac -version``` yields ? do you see ```javac``` under ```$JAVA_HOME/bin``` ? — Shmulik Klein, Jul 02 '16 at 14:26
The pom xml [https://gist.github.com/Aravamudhan/40aeaee30c61f615384cfa1dd6b04884] — Aravamudhan, Jul 02 '16 at 14:42
@niceman The output of package command [https://gist.github.com/Aravamudhan/511deba3f98130d38e90a836e0da08cd] — Aravamudhan, Jul 02 '16 at 14:44
Both the links are available. Please check this https://gist.github.com/Aravamudhan — Aravamudhan, Jul 02 '16 at 14:49
@AmudhanBala Do you see ```tools.jar``` under ```$JAVA_HOME/lib``` ? — Shmulik Klein, Jul 02 '16 at 14:50
@AmudhanBala so this seems to be your problem, I've added an explanation below. — Shmulik Klein, Jul 02 '16 at 14:59
I re installed java-8-openjdk-amd64. The build has succeeded. I could have reinstalled long before spending a lot of time on it, but would never have known the cause to be one particular jar. Now this package contains all the necessary jars. Thanks a lot every one for your helping hands. — Aravamudhan, Jul 02 '16 at 16:31

Shmulik Klein · Accepted Answer · 2016-07-02T14:58:29.747

3

Seems like maven-compiler-plugin version 3.x is using tools.jar for compilation rather then javac, please make sure this jar is present under $JAVA_HOME/lib and eclipse has permissions to access it.

You should also verify that tools.jar exists under Windows->Preferences->Installed JREs, and if it is not, add it manually.

edited Jul 02 '16 at 14:58

answered Jul 02 '16 at 14:38

Shmulik Klein

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Thanks for your help. java-8-openjdk-amd64, which I installed does not have tools.jar and dt.jar by default. I will add them and check. – Aravamudhan Jul 02 '16 at 15:25
My jdk had the tools.jar installed but they were not added in the "Installed JRE" on eclipse. Its all good after adding those. – Vishal--JAVA--CQ May 31 '19 at 03:29

No compiler is provided in this environment. - Eclipse - Maven - java-8-openjdk - Xubuntu

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