2.0.20-Beta2 - [ksp] java.lang.NullPointerException

[sureshg]

Upgrading to Beta2 started throwing the following NPE error on KSP task. Not sure whats the exact cause as there is no more details except the stacktrace.

• Env

kotlin                   = "2.0.20-Beta2"
kotlin-ksp               = "2.0.20-Beta2-1.0.23"
kotlin-api-version       = "1.9"
kotlin-lang-version      = "2.0"
gradle                   = "8.9"

• Error

> Task :kspKotlin FAILED
e: [ksp] java.lang.NullPointerException
        at com.google.devtools.ksp.symbol.impl.java.KSClassDeclarationJavaImpl$simpleName$2.invoke(KSClassDeclarationJavaImpl.kt:137)
        at com.google.devtools.ksp.symbol.impl.java.KSClassDeclarationJavaImpl$simpleName$2.invoke(KSClassDeclarationJavaImpl.kt:136)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at com.google.devtools.ksp.symbol.impl.java.KSClassDeclarationJavaImpl.getSimpleName(KSClassDeclarationJavaImpl.kt:136)
        at com.google.devtools.ksp.common.symbolCollector.visitDeclaration(IncrementalContextBase.kt:41)
        at com.google.devtools.ksp.common.symbolCollector.visitDeclaration(IncrementalContextBase.kt:34)
        at com.google.devtools.ksp.visitor.KSDefaultVisitor.visitClassDeclaration(KSDefaultVisitor.kt:79)
        at com.google.devtools.ksp.symbol.impl.java.KSClassDeclarationJavaImpl.accept(KSClassDeclarationJavaImpl.kt:166)
        at com.google.devtools.ksp.common.symbolCollector.visitDeclarationContainer(IncrementalContextBase.kt:57)
        at com.google.devtools.ksp.common.symbolCollector.visitDeclarationContainer(IncrementalContextBase.kt:34)
        at com.google.devtools.ksp.visitor.KSDefaultVisitor.visitFile(KSDefaultVisitor.kt:32)
        at com.google.devtools.ksp.symbol.impl.java.KSFileJavaImpl.accept(KSFileJavaImpl.kt:56)
        at com.google.devtools.ksp.common.IncrementalContextBase.collectDefinedSymbols(IncrementalContextBase.kt:111)
        at com.google.devtools.ksp.common.IncrementalContextBase.calcDirtyFiles(IncrementalContextBase.kt:218)
        at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension$doAnalysis$2.invoke(KotlinSymbolProcessingExtension.kt:196)
        at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension$doAnalysis$2.invoke(KotlinSymbolProcessingExtension.kt:189)
        at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension.handleException(KotlinSymbolProcessingExtension.kt:414)
        at com.google.devtools.ksp.AbstractKotlinSymbolProcessingExtension.doAnalysis(KotlinSymbolProcessingExtension.kt:189)
        at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration(TopDownAnalyzerFacadeForJVM.kt:112)
        at org.jetbrains.kotlin.cli.jvm.compiler.TopDownAnalyzerFacadeForJVM.analyzeFilesWithJavaIntegration$default(TopDownAnalyzerFacadeForJVM.kt:75)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.analyze$lambda$12(KotlinToJVMBytecodeCompiler.kt:373)
        at org.jetbrains.kotlin.cli.common.messages.AnalyzerWithCompilerReport.analyzeAndReport(AnalyzerWithCompilerReport.kt:112)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.analyze(KotlinToJVMBytecodeCompiler.kt:364)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.runFrontendAndGenerateIrUsingClassicFrontend(KotlinToJVMBytecodeCompiler.kt:195)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:106)
        at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:170)
        at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:43)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:103)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:49)
        at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:101)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1556)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:360)
        at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
        at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:714)
        at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:598)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:844)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:721)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:720)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1575)

e: Error occurred in KSP, check log for detail