JRE and JDK not match

Question

I am getting this error when compiling a project: Unsupported major.minor version 51.0. I am using JDK 1.6:

$ java -version
java version "1.6.0_51"
Java(TM) SE Runtime Environment (build 1.6.0_51-b11-457-11M4509)
Java HotSpot(TM) 64-Bit Server VM (build 20.51-b01-457, mixed mode)

According to this page, the error is due to inconsistency between JRE and JDK. Does anyone know how to fix this? Thank you very much.

BTW, my platform is OSX 10.8.5.

Update

Here is my JAVA_HOME:

export JAVA_HOME=`/usr/libexec/java_home -v 1.6.0`

I'd start with your `PATH` and `JAVA_HOME` environment variables. — jedwards, Sep 24 '13 at 19:03
It seems that you are compiling with JDK 1.6 and some of classes (or libraries) were compiled with JDK 1.7. Try to rebuild the project — Leos Literak, Sep 24 '13 at 19:03
@BalusC: Because my company's codebase is not ready to use JAVA SE 7 yet. — JBT, Sep 24 '13 at 19:09

score 2 · Accepted Answer · answered Sep 24 '13 at 19:09

2

You are getting "Unsupported major.minor version 51.0" because you are trying to run the application in jre 6 which is compiled using jdk 7.

Either compile your application using jdk 6 or upgrade your default jre to 7.

answered Sep 24 '13 at 19:09

Vasantha Gopal

36
1

I realized that one of the dependency of the project was compiled in Java 7. After recompiling that dependency in Java 6, everything works like a charm. – JBT Sep 24 '13 at 19:17
@LeosLiterak: Yes, you were. – JBT Sep 25 '13 at 04:50

JRE and JDK not match

1 Answers1