[java, jigsaw] support JEP 11 class file attributes (IDEA-366117) IJ-CR-154755

GitOrigin-RevId: 44bfa9f62cb31f539c40cb2ecd534fa0856ac8aa

java/codeserver/core/src/com/intellij/java/codeserver/core/JpmsModuleAccessInfo.kt

@@ -6,7 +6,7 @@ import com.intellij.openapi.module.ModuleUtilCore
 import com.intellij.openapi.roots.JdkOrderEntry
 import com.intellij.openapi.roots.ModuleRootManager
 import com.intellij.openapi.roots.ProjectRootManager
-import com.intellij.pom.java.LanguageLevel
+import com.intellij.pom.java.JavaFeature
 import com.intellij.psi.*
 import com.intellij.psi.impl.light.LightJavaModule
 import com.intellij.psi.search.GlobalSearchScope
@@ -164,9 +164,8 @@ data class JpmsModuleAccessInfo(val current: JpmsModuleInfo.CurrentModuleInfo, v
     if (targetModule.name == PsiJavaModule.JAVA_BASE) return true
 
     if (!isJdkModule(jpsModule, targetModule)) return false
-    val languageLevel = PsiUtil.getLanguageLevel(place)
     // https://bugs.openjdk.org/browse/JDK-8197532
-    val jdkModulePred: (PsiJavaModule) -> Boolean = if (languageLevel >= LanguageLevel.JDK_11) {
+    val jdkModulePred: (PsiJavaModule) -> Boolean = if (PsiUtil.isAvailable(JavaFeature.AUTO_ROOT_MODULES, place)) {
       { module -> module.exports.any { e -> e.moduleNames.isEmpty() } }
     }
     else {

java/java-frontback-psi-api/resources/messages/JavaPsiBundle.properties

@@ -85,6 +85,7 @@ feature.static.interface.calls=Static interface method calls
 feature.effectively.final=Effectively final variables
 feature.try.with.resources.refs=Resource references
 feature.modules=Modules
+feature.auto.root.modules=All API-exporting modules are implicitly root modules
 feature.private.interface.methods=Private interface methods
 feature.utf8.property.files=Property files in UTF-8 encoding
 feature.collection.factories=Collection factory methods

java/java-frontback-psi-api/src/com/intellij/pom/java/JavaFeature.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// 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.pom.java;
 
 import com.intellij.core.JavaPsiBundle;
@@ -56,6 +56,7 @@ public enum JavaFeature {
   LVTI(LanguageLevel.JDK_10, "feature.lvti"),
   VAR_LAMBDA_PARAMETER(LanguageLevel.JDK_11, "feature.var.lambda.parameter"),
   NESTMATES(LanguageLevel.JDK_11, "feature.nestmates"),
+  AUTO_ROOT_MODULES(LanguageLevel.JDK_11, "feature.auto.root.modules"),
   ENHANCED_SWITCH(LanguageLevel.JDK_14, "feature.enhanced.switch"),
   SWITCH_EXPRESSION(LanguageLevel.JDK_14, "feature.switch.expressions"),
   SERIAL_ANNOTATION(LanguageLevel.JDK_14, "feature.serial.annotation"),

java/java-psi-api/src/com/intellij/psi/PsiJavaModule.java

@@ -44,9 +44,45 @@ public interface PsiJavaModule extends NavigatablePsiElement, PsiNameIdentifierO
 
   @Override @NotNull PsiJavaModuleReferenceElement getNameIdentifier();
   @Override @NotNull String getName();
+  /**
+   * Checks whether the module should be excluded from automatic resolution when loaded from the classpath.
+   * This method reads the module resolution attributes from {@code module-info.class}, as specified in JEP 11.
+   *
+   * @return {@code true} if the module is marked with {@code DO_NOT_RESOLVE_BY_DEFAULT}, preventing automatic resolution;
+   *         {@code false} otherwise.
+   * @see <a href="https://openjdk.org/jeps/11">JEP 11: Incubator Modules</a>
+   */
   boolean doNotResolveByDefault();
+  /**
+   * Checks whether the module is marked as deprecated.
+   * This method reads the module resolution attributes from {@code module-info.class}, as specified in JEP 11.
+   *
+   * @return {@code true} if the module is marked with {@code WARN_DEPRECATED}, indicating that it is deprecated;
+   *         {@code false} otherwise.
+   * @see <a href="https://openjdk.org/jeps/11">JEP 11: Incubator Modules</a>
+   */
   boolean warnDeprecated();
+
+  /**
+   * Checks whether the module is deprecated and scheduled for removal in a future release.
+   * This method reads the module resolution attributes from {@code module-info.class}, as specified in JEP 11.
+   *
+   * @return {@code true} if the module is marked with {@code WARN_DEPRECATED_FOR_REMOVAL}, indicating that
+   *         it is deprecated and will be removed in a future release;
+   *         {@code false} otherwise.
+   * @see <a href="https://openjdk.org/jeps/11">JEP 11: Incubator Modules</a>
+   */
   boolean warnDeprecatedForRemoval();
+
+  /**
+   * Checks whether the module is in incubating mode, meaning it is not yet standardized.
+   * This method reads the module resolution attributes from {@code module-info.class}, as specified in JEP 11.
+   *
+   * @return {@code true} if the module is marked with {@code WARN_INCUBATING}, indicating that it is an
+   *         incubator module and subject to change in future releases;
+   *         {@code false} otherwise.
+   * @see <a href="https://openjdk.org/jeps/11">JEP 11: Incubator Modules</a>
+   */
   boolean warnIncubating();
 
   @NotNull Iterable<PsiRequiresStatement> getRequires();