javadoc: fix repeatable annotations check (IDEA-265396)

GitOrigin-RevId: cadc4dcdfb3d0b9604550f0eaa6b390ec4b19c09

java/java-impl/src/com/intellij/codeInsight/javadoc/AnnotationDocGenerator.java

@@ -197,7 +197,7 @@ public final class AnnotationDocGenerator {
     AnnotationDocGenerator anno = new AnnotationDocGenerator(annotation, nameReferenceElement, context);
     if (anno.isNonDocumentedAnnotation()) return null;
 
-    if (!(shownAnnotations.add(annotation.getQualifiedName()) || JavaDocInfoGenerator.isRepeatableAnnotationType(annotation))) return null;
+    if (!(shownAnnotations.add(annotation.getQualifiedName()) || JavaDocInfoGenerator.isRepeatableAnnotationType(nameReferenceElement.resolve()))) return null;
     return anno;
   }
 }

java/java-tests/testData/codeInsight/javadocIG/repeatableAnnotations.java

@@ -0,0 +1,21 @@
+import java.lang.annotation.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@R("a")
+@R("b")
+class repeatableAnnotations {}
+
+@Documented
+@Repeatable(R.Rs.class)
+@Retention(RetentionPolicy.SOURCE)
+@Target({ElementType.FIELD, ElementType.TYPE})
+@interface R {
+  String value();
+  @Documented
+  @Retention(RetentionPolicy.SOURCE)
+  @Target({ElementType.TYPE, ElementType.FIELD})
+  public @interface Rs {
+    R[] value();
+  }
+}

java/java-tests/testSrc/com/intellij/java/codeInsight/javadoc/JavaDocInfoGeneratorTest.java

@@ -4,6 +4,7 @@ package com.intellij.java.codeInsight.javadoc;
 import com.intellij.JavaTestUtil;
 import com.intellij.codeInsight.AnnotationUtil;
 import com.intellij.codeInsight.JavaCodeInsightTestCase;
+import com.intellij.codeInsight.javadoc.JavaDocInfoGenerator;
 import com.intellij.java.codeInsight.JavaExternalDocumentationTest;
 import com.intellij.lang.java.JavaDocumentationProvider;
 import com.intellij.openapi.application.ApplicationManager;
@@ -113,6 +114,15 @@ public class JavaDocInfoGeneratorTest extends JavaCodeInsightTestCase {
   public void testTypeAnnotationArray() { useJava8(); doTestAtCaret(); }
   public void testTypeAnnotationClass() { useJava8(); doTestClass(); }
 
+  public void testRepeatableAnnotations() {
+    useJava8();
+    assertEquals("@R("a") \n" +
+                 "@R("b") \n" +
+                 "class <b>repeatableAnnotations</b>\n" +
+                 "extends <a href=\"psi_element://java.lang.Object\"><code>Object</code></a>",
+                 JavaDocInfoGenerator.generateSignature(getTestClass()));
+  }
+  
   public void testAnonymousAndSuperJavadoc() {
     PsiClass psiClass = PsiTreeUtil.findChildOfType(getTestClass(), PsiAnonymousClass.class);
     assertNotNull(psiClass);