Sudden, unexplained "Compilation failed" when trying to swap classes

[Decencies]

I had been using this plugin to swap a few classes. After a few restarts of the application, I can no longer swap the same classes I was working on due to "Compilation failed".

The classes I am trying to swap do not have any syntax errors. I am running OpenJDK 17.0.7 on Windows 10 64-bit.

[LabyStudio]

I couldn't find a way to reproduce it. Do you have a simplified example project setup that causes the issue?

[Decencies]

No idea how to reproduce, I just closed all instances of intellij and restarted the applet and it started working again.

[LabyStudio]

Seems like updating IntelliJ could fix the issue #22

[JoeTheOrangeCat]

Seems like updating IntelliJ could fix the issue #22

Its happing to me again too :( im using the 2024 version, Ill see what happens when I downgrade maybe

[JoeTheOrangeCat]

Ok a different project runs fine, but this one doesn't... even though there are no errors. hmmm

[LabyStudio]

If you can give me an example project where this is the case, I can take a look at it

[JoeTheOrangeCat]

Is there a way you can make the message show where the compilation error is? Or even what file its in? Because there is no error showing up for me.

I'll let you know if I find anything because I'm not sure how to replicate it.

[JoeTheOrangeCat]

java.lang.Throwable: net.labymod.intellij.singlehotswap.hotswap.FileType <clinit> requests com.intellij.ide.plugins.PluginManager instance. Class initialization must not depend on services. Consider using instance of the service on-demand instead.
    at com.intellij.openapi.diagnostic.Logger.error(Logger.java:376)
    at com.intellij.serviceContainer.ComponentManagerImplKt.checkOutsideClassInitializer(ComponentManagerImpl.kt:1588)
    at com.intellij.serviceContainer.ComponentManagerImplKt.getOrCreateInstanceBlocking(ComponentManagerImpl.kt:1557)
    at com.intellij.serviceContainer.ComponentManagerImpl.doGetService(ComponentManagerImpl.kt:746)
    at com.intellij.serviceContainer.ComponentManagerImpl.getService(ComponentManagerImpl.kt:690)
    at com.intellij.ide.plugins.PluginManager.getInstance(PluginManager.java:30)
    at net.labymod.intellij.singlehotswap.hotswap.FileType.<init>(FileType.java:50)
    at net.labymod.intellij.singlehotswap.hotswap.FileType.<clinit>(FileType.java:16)
    at net.labymod.intellij.singlehotswap.actions.SingleHotswapAction.update(SingleHotswapAction.java:68)
    at com.intellij.openapi.actionSystem.ex.ActionUtil$performDumbAwareUpdate$runnable$1.invoke(ActionUtil.kt:199)
    at com.intellij.openapi.actionSystem.ex.ActionUtil$performDumbAwareUpdate$runnable$1.invoke(ActionUtil.kt:193)
    at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareUpdate(ActionUtil.kt:217)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$success$1$1$1.invoke(ActionUpdater.kt:561)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$success$1$1$1.invoke(ActionUpdater.kt:560)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$callAction$2$1.invoke(ActionUpdater.kt:155)
    at com.intellij.openapi.application.rw.InternalReadAction.insideReadAction(InternalReadAction.kt:104)
    at com.intellij.openapi.application.rw.InternalReadAction.access$insideReadAction(InternalReadAction.kt:15)
    at com.intellij.openapi.application.rw.InternalReadAction$tryReadCancellable$2.invoke(InternalReadAction.kt:94)
    at com.intellij.openapi.application.rw.InternalReadAction$tryReadCancellable$2.invoke(InternalReadAction.kt:93)
    at com.intellij.openapi.application.rw.CancellableReadActionKt.cancellableReadActionInternal$lambda$2$lambda$1$lambda$0(cancellableReadAction.kt:31)
    at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.tryRunReadAction(AnyThreadWriteThreadingSupport.kt:291)
    at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:965)
    at com.intellij.openapi.application.rw.CancellableReadActionKt.cancellableReadActionInternal$lambda$2$lambda$1(cancellableReadAction.kt:29)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtilService.runActionAndCancelBeforeWrite(ProgressIndicatorUtilService.java:66)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:155)
    at com.intellij.openapi.application.rw.CancellableReadActionKt.cancellableReadActionInternal(cancellableReadAction.kt:27)
    at com.intellij.openapi.application.rw.InternalReadAction.tryReadCancellable(InternalReadAction.kt:93)
    at com.intellij.openapi.application.rw.InternalReadAction.tryReadAction(InternalReadAction.kt:77)
    at com.intellij.openapi.application.rw.InternalReadAction.readLoop(InternalReadAction.kt:64)
    at com.intellij.openapi.application.rw.InternalReadAction.access$readLoop(InternalReadAction.kt:15)
    at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$3.invokeSuspend(InternalReadAction.kt:35)
    at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$3.invoke(InternalReadAction.kt)
    at com.intellij.openapi.application.rw.InternalReadAction$runReadAction$3.invoke(InternalReadAction.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:62)
    at kotlinx.coroutines.CoroutineScopeKt.coroutineScope(CoroutineScope.kt:261)
    at com.intellij.openapi.application.rw.InternalReadAction.runReadAction(InternalReadAction.kt:34)
    at com.intellij.openapi.application.rw.PlatformReadWriteActionSupport.executeReadAction(PlatformReadWriteActionSupport.kt:38)
    at com.intellij.openapi.application.ReadWriteActionSupport.executeReadAction$default(ReadWriteActionSupport.kt:15)
    at com.intellij.openapi.application.CoroutinesKt.constrainedReadActionUndispatched(coroutines.kt:82)
    at com.intellij.openapi.application.CoroutinesKt.readActionUndispatched(coroutines.kt:69)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$callAction$$inlined$useWithScope$1.invokeSuspend(trace.kt:163)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$callAction$$inlined$useWithScope$1.invoke(trace.kt)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$callAction$$inlined$useWithScope$1.invoke(trace.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:62)
    at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:163)
    at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater.callAction(ActionUpdater.kt:939)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater.access$callAction(ActionUpdater.kt:85)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$success$1$1.invokeSuspend(ActionUpdater.kt:560)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$success$1$1.invoke(ActionUpdater.kt)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$success$1$1.invoke(ActionUpdater.kt)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$$inlined$retryOnAwaitSharedData$1.invokeSuspend(ActionUpdater.kt:939)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$$inlined$retryOnAwaitSharedData$1.invoke(ActionUpdater.kt)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$updateAction$$inlined$retryOnAwaitSharedData$1.invoke(ActionUpdater.kt)
    at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:62)
    at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:163)
    at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater.updateAction(ActionUpdater.kt:979)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater.expandGroupChild(ActionUpdater.kt:407)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater.access$expandGroupChild(ActionUpdater.kt:85)
    at com.intellij.openapi.actionSystem.impl.ActionUpdater$doExpandActionGroup$2$expandResult$1$1.invokeSuspend(ActionUpdater.kt:334)
    at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
    at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:111)
    at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:99)
    at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:608)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:873)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:763)
    at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:750)

[JoeTheOrangeCat]

That was on start

[LabyStudio]

It looks like you have an old version of the plugin

[JoeTheOrangeCat]

Ill see if I can update it

[JoeTheOrangeCat]

Ok I updated it, along with Gradlew(to 8.8) but I still get Error during hotswap: Compilation failed

[JoeTheOrangeCat]

Hold on gradle is doing something

[JoeTheOrangeCat]

Nope same error, Ill try to see if I can fix it later.

[LabyStudio]

I can add some debugging messages for you

[JoeTheOrangeCat]

Thanks! I will try tomorrow or the next day! I also deleted all grades cache, the .ide folder and maybe something else to let the regenerate but the problem persisted. Probably tomorrow I'll try the debug messages and get back to you.

[LabyStudio]

singlehotswap.zip

[JoeTheOrangeCat]

Thanks! I'll try that tomorrow.

[JoeTheOrangeCat]

fabric-example-mod-1.19 [runClient]: Error during compilation: null:-1 SpongePowered MIXIN Annotation Processor Version=0.8.5 null:-1 Supported obfuscation types: ObfuscationServiceMCP supports [searge,notch] file:/C:/Users/*/Desktop/Java/*/fabric-example-mod-1.19/src/main/java/net/*/mixin/ConnectionMixin.java:21 Unable to locate obfuscation mapping for @Inject target send

Hmm interesting, the debug info was helpful! Its something to do with the mixins.

[JoeTheOrangeCat]

@Inject(at = @At("HEAD"), method = "send(Lnet/minecraft/network/packet/Packet;Lnet/minecraft/network/PacketCallbacks;)V", cancellable = true) public void send(Packet<?> packet, @Nullable PacketCallbacks callbacks, CallbackInfo ci) { .... }

/\ errors

\/ doesn't error

@Inject(at = @At("HEAD"), method = "getClientModName", cancellable = true, remap = false)
    private static void getClientModName(CallbackInfoReturnable<String> callback) {

    }

[JoeTheOrangeCat]

I had a bit of extra time to test it today

[JoeTheOrangeCat]

Ok I tested it on the one I thought was working, turns out its also erroring on certain Mixins.

[JoeTheOrangeCat]

Gronk [runClient]: Error during compilation: null:-1 SpongePowered MIXIN Annotation Processor Version=0.8.5 null:-1 Supported obfuscation types: ObfuscationServiceMCP supports [searge,notch] file:/C:/Users/*/Desktop/Java/Gronk/src/main/java/com/example/mixin/ExampleMixin.java:11 Unable to locate obfuscation mapping for @Inject target loadWorld

@Mixin(MinecraftServer.class)
public class ExampleMixin {
    @Inject(at = @At("HEAD"), method = "loadWorld")
    private void init(CallbackInfo info) {
        // This code is injected into the start of MinecraftServer.loadWorld()V
    }
}

I just don't have many mixins in this project so I didn't notice.

[LabyStudio]

What happens if you use a different compiler? It would be surprising if the built-in compiler could handle Mixins. You can also enable the option to hold shift while hotswapping to switch between the built-in compiler and your default compiler

[JoeTheOrangeCat]

fabric-example-mod-1.19 [runClient]: Compiled 1 classes in 1531ms fabric-example-mod-1.19 [runClient]: 0 classes reloaded

Thats when I turn Built-In compiler off, however no changes seemed to have been made

[LabyStudio]

Yep, that's what I expected. I'm pretty sure it's not possible to hotswap Mixins with this configuration. Maybe there is a way to solve it, but I've never tried that. I think @R0bbyYT managed to do it somehow.

[JoeTheOrangeCat]

I think I used to be able to hotswap mixins, but I haven't been able to recently. It's also only certain mixins too.