MCreator does not finish setting up - Mac, Java version

Status
Works as designed
Issue description

So I opened MCreator, and it stopped at the part about launching it... I don't know what happened, but it said something about Gradle failing to set up... I have no context and therefore, no analysis. Here's the error log:
 

   
Executing gradle command: cleanCache clean setupDecompWorkspace --refresh-dependencies
Support for running Gradle using Java 6 has been deprecated and will be removed in Gradle 3.0
FAILURE: Build failed with an exception.
* Where:
Build file '/Users/Home/Downloads/MCreator 1.7.9 [1.12.2] Mac-Linux 32-64bit/forge/build.gradle' line: 10
* What went wrong:
A problem occurred evaluating root project 'forge'.
> java.lang.UnsupportedClassVersionError: net/minecraftforge/gradle/user/patcherUser/forge/ForgePlugin : Unsupported major.minor version 52.0
* 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: 21.222 secs
Task completed with return code 1 in 22939 milliseconds
   
Executing gradle command: cleanCache clean setupDecompWorkspace --refresh-dependencies
Support for running Gradle using Java 6 has been deprecated and will be removed in Gradle 3.0
FAILURE: Build failed with an exception.
* Where:
Build file '/Users/Home/Downloads/MCreator 1.7.9 [1.12.2] Mac-Linux 32-64bit/forge/build.gradle' line: 10
* What went wrong:
A problem occurred evaluating root project 'forge'.
> java.lang.UnsupportedClassVersionError: net/minecraftforge/gradle/user/patcherUser/forge/ForgePlugin : Unsupported major.minor version 52.0
* 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: 31.757 secs
Task completed with return code 1 in 33142 milliseconds

I think there may be two separate error log sections there. Sorry!

Issue comments

The version of Java you are using is not supported. MCreator only supports Java 8, we recommend the latest Java 8 update. Make sure to have this version as default version on your Mac.