OSX 8 still has JDK 6 available

[ascheman]

On OSX 8 (10.8.x) there is still a JDK 6 provided in /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK. Since .mvn/wrapper/maven-wrapper.jar was compiled with JDK 7, it cannot be loaded but raises the following exception:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/wrapper/MavenWrapperMain : Unsupported major.minor version 51.0

I see two solutions to the problem:

1. Change the search order in the mvnw wrapper script: search for newer Oracle JDKs (7 or 8) first since they can handle this (then completely drop JDK 6 for Darwin since it makes no sense!)
2. Compile the Java classes with JDK 6 to enable running with older JDKs

I would prefer solution No. 2 since this would also allow to use the wrapper for legacy projects which rely on JDK 6 (yes, there are still some users of this out there in the dark!)

[abelsromero]

I am finding the same issue. I compiled the project setting the maven compiler to be compatible with 1.6 and it worked.

      <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <configuration>
              <source>1.6</source>
              <target>1.6</target>
          </configuration>
      </plugin>

I know 1.6 is outdated, but I thing it could be done. The changes are minnor and it will help those arround still stuck with 1.6. wdyt?

[mosabua]

I believe this PR #14 fixes the issue.

[abelsromero]

In the end I have created a fork and made the changes in my repo. TBH seems this is unmaintained.

[mosabua]

Fixed with upcoming 0.2.0