src/jdk.compiler/share/classes/com/sun/tools/javac/code/Source.java

*** 227,10 ***
--- 227,11 ---
          SWITCH_EXPRESSION(JDK14, Fragments.FeatureSwitchExpressions, DiagKind.PLURAL),
          TEXT_BLOCKS(JDK15, Fragments.FeatureTextBlocks, DiagKind.PLURAL),
          PATTERN_MATCHING_IN_INSTANCEOF(JDK16, Fragments.FeaturePatternMatchingInstanceof, DiagKind.NORMAL),
          REIFIABLE_TYPES_INSTANCEOF(JDK16, Fragments.FeatureReifiableTypesInstanceof, DiagKind.PLURAL),
          RECORDS(JDK16, Fragments.FeatureRecords, DiagKind.PLURAL),
+         PRIMITIVE_CLASSES(JDK17, Fragments.FeaturePrimitiveClasses, DiagKind.NORMAL),
          SEALED_CLASSES(JDK17, Fragments.FeatureSealedClasses, DiagKind.PLURAL),
          CASE_NULL(JDK17, Fragments.FeatureCaseNull, DiagKind.NORMAL),
          PATTERN_SWITCH(JDK17, Fragments.FeaturePatternSwitch, DiagKind.PLURAL),
          REDUNDANT_STRICTFP(JDK17),
          ;