Fix class loading issues

[virustotalop]

Fix class loading issue, this is why 2.0.0 is a pre-release. There is a issue with different class loading paths. 1.x should be re-evaluated to try to fix this issue. Relevant stacktrace.

Error occurred while enabling DynamicGui v3.5.1 (Is it up to date?)
java.lang.NullPointerException: null
	at javassist.LoaderClassPath.find(LoaderClassPath.java:83) ~[?:?]
	at javassist.ClassPoolTail.find(ClassPoolTail.java:354) ~[?:?]
	at javassist.ClassPool.find(ClassPool.java:591) ~[?:?]
	at javassist.ClassPool.createCtClass(ClassPool.java:575) ~[?:?]
	at javassist.ClassPool.get0(ClassPool.java:540) ~[?:?]
	at javassist.ClassPool.getOrNull(ClassPool.java:483) ~[?:?]
	at com.clubobsidian.dynamicgui.shaded.trident.eventbus.javassist.JavassistEventBus.generateMethodExecutor(JavassistEventBus.java:104) ~[?:?]
	at com.clubobsidian.dynamicgui.shaded.trident.eventbus.javassist.JavassistEventBus.createMethodExecutor(JavassistEventBus.java:63) ~[?:?]
	at com.clubobsidian.dynamicgui.shaded.trident.EventBus.registerEvents(EventBus.java:123) ~[?:?]
	at com.clubobsidian.dynamicgui.DynamicGui.registerListeners(DynamicGui.java:209) ~[?:?]
	at com.clubobsidian.dynamicgui.DynamicGui.init(DynamicGui.java:105) ~[?:?]
	at com.clubobsidian.dynamicgui.DynamicGui.createInstance(DynamicGui.java:354) ~[?:?]
	at com.clubobsidian.dynamicgui.plugin.bukkit.BukkitPlugin.start(BukkitPlugin.java:78) ~[?:?]
	at com.clubobsidian.dynamicgui.plugin.bukkit.BukkitPlugin.onEnable(BukkitPlugin.java:68) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[patched_1.12.2.jar:git-Paper-1611]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:316) ~[patched_1.12.2.jar:git-Paper-1611]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) ~[patched_1.12.2.jar:git-Paper-1611]
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:395) ~[patched_1.12.2.jar:git-Paper-1611]
	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:344) ~[patched_1.12.2.jar:git-Paper-1611]
	at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:442) ~[patched_1.12.2.jar:git-Paper-1611]
	at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:403) ~[patched_1.12.2.jar:git-Paper-1611]
	at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:341) ~[patched_1.12.2.jar:git-Paper-1611]
	at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:289) ~[patched_1.12.2.jar:git-Paper-1611]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:616) ~[patched_1.12.2.jar:git-Paper-1611]