What we have here is a Failure to mod...

F:\Dev\Modding\Minecraft\ForgeMods>gradlew setupDecompWorkspace eclipse --refres
h-dependencies
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 Searge, ProfMobius, Fesh0r,
 R4wk, ZeuX, IngisKahn, bspkrs
 MCP Data version : unknown
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:extractMcpData UP-TO-DATE
:getVersionJson
:extractUserDev UP-TO-DATE
:genSrgs SKIPPED
:extractNatives UP-TO-DATE
:getAssetsIndex
:getAssets
:makeStart FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':makeStart'.
> Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to "C:\Program Files\Java\jre1.8.0_25"

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug
option to get more log output.

BUILD FAILED

Total time: 1 mins 50.863 secs

F:\Dev\Modding\Minecraft\ForgeMods>