Plugin crashes with IntelliJ compiler

[henrik242]

Using Gradle 5.4.1, IntelliJ IDEA 2019.1 and Kotlin 1.3.31

Quoting @fabianishere:

This is caused by the fact that this compiler plugin is built against the compiler-embedable artifact which uses the org.jetbrains.kotlin.com.intellij.mock.MockProject class while the actual compiler artifact used by IntelliJ uses the com.intellij.mock.MockProject class instead.

If we switch to the compiler artifact, the build will stop working for Gradle-only builds. A solution might be to write an IntelliJ plugin to load this plugin as seen in the Kotlin source (https://github.com/JetBrains/kotlin/tree/master/plugins/allopen). However, this requires some libraries which are not published as far as I know.

Error:Kotlin: [Internal Error] java.lang.IllegalStateException: The provided plugin no.synth.reallyallopen.ReallyAllOpenRegistrar is not compatible with this version of compiler
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:182)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:123)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:413)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createCoreEnvironment(K2JVMCompiler.kt:259)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:124)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:54)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:84)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:42)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:103)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$1.invoke(CompileServiceImpl.kt:436)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$1.invoke(CompileServiceImpl.kt:102)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:1023)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:102)
	at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:1065)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:1022)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:434)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:688)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:389)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:835)
Caused by: java.lang.AbstractMethodError: Receiver class no.synth.reallyallopen.ReallyAllOpenRegistrar does not define or inherit an implementation of the resolved method abstract registerProjectComponents(Lcom/intellij/mock/MockProject;Lorg/jetbrains/kotlin/config/CompilerConfiguration;)V of interface org.jetbrains.kotlin.compiler.plugin.ComponentRegistrar.
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:174)
	... 33 more

Might be fixed by creating an IDE plugin, ref issue #6

Related:

• Plugin crashes with IntelliJ compiler fabianishere/kotlin-plugin-generated#4
• https://youtrack.jetbrains.com/issue/KT-25596
• https://youtrack.jetbrains.com/issue/KT-24946
• Compiler version incompatibility Kotlin/workshop#12

[fabianishere]

Hi @henrik242,

I took another look at the issue and figured out how to build a custom IDE plugin for IntelliJ to fix it:
https://github.com/fabianishere/kotlin-plugin-generated/tree/master/plugin-idea

It works by searching for the Kotlin compiler plugin JAR that the Gradle plugin adds to the compiler options and replacing it with a similar JAR where the org.jetbrains.kotlin.com.intellij package is relocated to com.intellij.
Somewhat hacky solution, but this is the approach Jetbrains also uses for the kotlinx-serialization plugin.

[henrik242]

Thanks @fabianishere! I'll try replicating your work, since my plugin is kind of unusable (at least for me) without the IDE support.