Bad classes in gomint

[nklyshko]

Describe the bug

Can't build cloudnet modules because of newer java version clasess in gomint.

Steps for reproducing

./gradlew cloudnet-modules:cloudnet-bridge:build

Message

> Task :cloudnet-modules:cloudnet-bridge:compileJava FAILED
D:\Work\CloudNet\cloudnet-modules\cloudnet-bridge\src\main\java\de\dytanic\cloudnet\ext\bridge\gomint\event\GoMintBridgeEvent.java:3: error: cannot access Event
import io.gomint.event.Event;
                      ^
  bad class file: D:\Work\CloudNet\cloudnet-modules\libs\gomint-1.0-SNAPSHOT.jar(io/gomint/event/Event.class)
    class file has wrong version 55.0, should be 52.0
    Please remove or make sure it appears in the correct subdirectory of the classpath.
FAILURE: Build failed with an exception.

Please provide us information about your environment and used assets

OS: Windows 7 Version: Last master commit

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[derrop]

You have to build it using Java 11

[nklyshko]

I think that gradle manages which version to use to build. Should I change sourceCompatibility to 1.11?

[derrop]

No, you don't have to change anything in CloudNet itself. It's only your jdk version

[juliarn]

Yes, you have to build with Java 11. We can't do much about this, gomint seems to be closed, but we dont want to remove the whole support for it yet

[nklyshko]

Is it correct, that if something can't be built using Java 8, but can with Java 11, then it must be have sourceCompatibility 1.11?

[juliarn]

Not really, we only use java 8 features, so the source compatibility should be 8 too.