fix lazy parsers for doc comments

- forgot to close the root marker in the prev commit
- use JavaDocLexer

GitOrigin-RevId: 400206b6588a16b8ba2396c69b055bb491eda942

java/java-syntax/src/com/intellij/java/syntax/element/lazyParser/JavaDocCommentParser.kt

@@ -2,9 +2,12 @@
 package com.intellij.java.syntax.element.lazyParser
 
 import com.intellij.java.syntax.element.JavaDocSyntaxElementType
+import com.intellij.java.syntax.lexer.JavaDocLexer
 import com.intellij.java.syntax.parser.JavaDocParser
+import com.intellij.platform.syntax.LazyLexingContext
 import com.intellij.platform.syntax.LazyParser
 import com.intellij.platform.syntax.LazyParsingContext
+import com.intellij.platform.syntax.lexer.Lexer
 import com.intellij.platform.syntax.parser.ProductionResult
 import com.intellij.platform.syntax.parser.prepareProduction
 import com.intellij.pom.java.LanguageLevel
@@ -12,7 +15,9 @@ import com.intellij.pom.java.LanguageLevel
 internal class JavaDocCommentParser : LazyParser {
   override fun parse(parsingContext: LazyParsingContext): ProductionResult {
     val syntaxTreeBuilder = parsingContext.syntaxTreeBuilder
-    JavaDocParser(syntaxTreeBuilder, LanguageLevel.HIGHEST).parseDocCommentText()
+    parseFragment(syntaxTreeBuilder, JavaDocSyntaxElementType.DOC_COMMENT, false) {
+      JavaDocParser(syntaxTreeBuilder, languageLevel).parseDocCommentText()
+    }
     return prepareProduction(syntaxTreeBuilder)
   }
 
@@ -25,4 +30,9 @@ internal class JavaDocCommentParser : LazyParser {
            newText.startsWith("/**") &&
            newText.endsWith("*/")
   }
+
+  override fun createLexer(lexingContext: LazyLexingContext): Lexer =
+    JavaDocLexer(languageLevel)
+
+  private val languageLevel get() = LanguageLevel.HIGHEST
 }

java/java-syntax/src/com/intellij/java/syntax/element/lazyParser/JavaDocTypeParser.kt

@@ -1,6 +1,7 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.java.syntax.element.lazyParser
 
+import com.intellij.java.syntax.element.JavaDocSyntaxElementType
 import com.intellij.java.syntax.lexer.JavaLexer
 import com.intellij.java.syntax.lexer.JavaTypeEscapeLexer
 import com.intellij.java.syntax.parser.JavaDocParser
@@ -16,7 +17,9 @@ import com.intellij.pom.java.LanguageLevel
 internal class JavaDocTypeParser : LazyParser {
   override fun parse(parsingContext: LazyParsingContext): ProductionResult {
     val syntaxTreeBuilder = parsingContext.syntaxTreeBuilder
-    JavaDocParser(syntaxTreeBuilder, languageLevel).parseJavadocType(JavaParser(languageLevel))
+    parseFragment(syntaxTreeBuilder, JavaDocSyntaxElementType.DOC_TYPE_HOLDER, false) {
+      JavaDocParser(syntaxTreeBuilder, languageLevel).parseJavadocType(JavaParser(languageLevel))
+    }
     return prepareProduction(syntaxTreeBuilder)
   }
 

java/java-syntax/src/com/intellij/java/syntax/element/lazyParser/ParsingUtil.kt

@@ -0,0 +1,30 @@
+// Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+@file:JvmName("ParsingUtil")
+
+package com.intellij.java.syntax.element.lazyParser
+
+import com.intellij.java.syntax.JavaSyntaxBundle
+import com.intellij.platform.syntax.SyntaxElementType
+import com.intellij.platform.syntax.parser.SyntaxTreeBuilder
+import kotlin.jvm.JvmName
+
+inline fun parseFragment(
+  builder: SyntaxTreeBuilder,
+  type: SyntaxElementType,
+  eatAll: Boolean = false,
+  block: () -> Unit,
+) {
+  val root = builder.mark()
+  block()
+  if (!builder.eof()) {
+    if (!eatAll) throw IncompleteFragmentParsingException("Unexpected token: '${builder.tokenText}'")
+    val extras = builder.mark()
+    while (!builder.eof()) {
+      builder.advanceLexer()
+    }
+    extras.error(JavaSyntaxBundle.message("unexpected.tokens"))
+  }
+  root.done(type)
+}
+
+class IncompleteFragmentParsingException(message: String) : RuntimeException(message)