KAPT: Use reflection to access code, changed in JDK 21

 #KT-57389 Fixed

Author: ilmirus

plugins/kapt3/kapt3-base/src/org/jetbrains/kotlin/kapt3/base/javac/KaptJavaLog.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.kapt3.base.javac
 
 import com.sun.tools.javac.tree.JCTree
+import com.sun.tools.javac.tree.JCTree.JCImport
 import com.sun.tools.javac.util.*
 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticType
 import org.jetbrains.kotlin.kapt3.base.KaptContext
@@ -55,6 +56,8 @@ class KaptJavaLog(
 
     private val _reportedDiagnostics = mutableListOf<JCDiagnostic>()
 
+    private val jcImportQualidField = JCImport::class.java.declaredFields.single { it.name == "qualid" }
+
     override fun flush(kind: WriterKind?) {
         super.flush(kind)
 
@@ -197,7 +200,7 @@ class KaptJavaLog(
         val visitor = object : JCTree.Visitor() {
             override fun visitImport(that: JCTree.JCImport) {
                 super.visitImport(that)
-                if (!found) that.qualid.accept(this)
+                if (!found) (jcImportQualidField.get(that) as JCTree).accept(this)
             }
 
             override fun visitSelect(that: JCTree.JCFieldAccess) {

plugins/kapt3/kapt3-compiler/src/org/jetbrains/kotlin/kapt3/stubs/ClassFileToSourceStubConverter.kt

@@ -144,6 +144,8 @@ class ClassFileToSourceStubConverter(val kaptContext: KaptContextForStubGenerati
 
     private var done = false
 
+    private val treeMakerImportMethod = TreeMaker::class.java.declaredMethods.single { it.name == "Import" }
+
     fun convert(): List<KaptStub> {
         if (kaptContext.logger.isVerbose) {
             dumpDeclarationOrigins()
@@ -315,13 +317,15 @@ class ClassFileToSourceStubConverter(val kaptContext: KaptContextForStubGenerati
             val importedExpr = treeMaker.FqName(importedFqName.asString())
 
             imports += if (importDirective.isAllUnder) {
-                treeMaker.Import(treeMaker.Select(importedExpr, treeMaker.nameTable.names.asterisk), false)
+                treeMakerImportMethod.invoke(
+                    treeMaker, treeMaker.Select(importedExpr, treeMaker.nameTable.names.asterisk), false
+                ) as JCImport
             } else {
                 if (!importedShortNames.add(importedFqName.shortName().asString())) {
                     continue
                 }
 
-                treeMaker.Import(importedExpr, false)
+                treeMakerImportMethod.invoke(treeMaker, importedExpr, false) as JCImport
             }
         }
 

plugins/kapt4/src/org/jetbrains/kotlin/kapt4/Kapt4StubGenerator.kt

@@ -15,6 +15,7 @@ import com.sun.tools.javac.code.TypeTag
 import com.sun.tools.javac.parser.Tokens
 import com.sun.tools.javac.tree.JCTree
 import com.sun.tools.javac.tree.JCTree.*
+import com.sun.tools.javac.tree.TreeMaker
 import kotlinx.kapt.KaptIgnored
 import org.jetbrains.kotlin.analysis.api.symbols.KtCallableSymbol
 import org.jetbrains.kotlin.analysis.api.symbols.KtClassOrObjectSymbol
@@ -84,6 +85,8 @@ internal class Kapt4StubGenerator {
         private val JAVA_KEYWORDS = Tokens.TokenKind.values()
             .filter { JAVA_KEYWORD_FILTER_REGEX.matches(it.toString().orEmpty()) }
             .mapTo(hashSetOf(), Any::toString)
+
+        private val treeMakerImportMethod = TreeMaker::class.java.declaredMethods.single { it.name == "Import" }
     }
 
     private val strictMode = options[KaptFlag.STRICT]
@@ -260,13 +263,15 @@ internal class Kapt4StubGenerator {
             if (!isValidQualifiedName(importedFqName)) continue
             val importedExpr = treeMaker.FqName(importedFqName.asString())
             imports += if (importDirective.isAllUnder) {
-                treeMaker.Import(treeMaker.Select(importedExpr, treeMaker.nameTable.names.asterisk), false)
+                treeMakerImportMethod.invoke(
+                    treeMaker, treeMaker.Select(importedExpr, treeMaker.nameTable.names.asterisk), false
+                ) as JCImport
             } else {
                 if (!importedShortNames.add(importedFqName.shortName().asString())) {
                     continue
                 }
 
-                treeMaker.Import(importedExpr, false)
+                treeMakerImportMethod.invoke(treeMaker, importedExpr, false) as JCImport
             }
         }