[java-inspections] Detect dashes in MismatchedJavadocCodeInspection

#IDEA-374566 Fixed

GitOrigin-RevId: 7e7466f2143e23a58d1d159a8759c50aaf0fa95b

java/java-impl/src/com/intellij/codeInspection/javaDoc/MismatchedJavadocCodeInspection.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2022 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.codeInspection.javaDoc;
 
 import com.intellij.codeInsight.Nullability;
@@ -39,7 +39,7 @@ public final class MismatchedJavadocCodeInspection extends AbstractBaseJavaLocal
   public static final Pattern
     RETURN_LINE_START_TYPE_SINGULAR = Pattern.compile("@return\\s+an? (\\S+) (that |describing |containing |of |with |whose |which )");
   public static final Pattern
-    RETURN_LINE_MIDDLE = Pattern.compile("(?:\n\\s*\\*|;|,)\\s+(\\S+) (iff?\\s|when\\s|otherwise|in case of|in the case of)",
+    RETURN_LINE_MIDDLE = Pattern.compile("(?:\n\\s*\\*|;|,|–|—)\\s+(\\S+) (iff?\\s|when\\s|otherwise|in case of|in the case of)",
                                          Pattern.MULTILINE);
   public static final Pattern DESCRIPTION =
     Pattern.compile("^\\s+Returns (\\S+) (iff?\\s|when\\s|in case of|in the case of)", Pattern.CASE_INSENSITIVE);

java/java-tests/testData/inspection/javadocMismatchCode/MismatchedJavadocCode.java

@@ -19,6 +19,16 @@ public interface MismatchedJavadocCode {
    */
   int getData2();
 
+  /**
+   * @return foo — <warning descr="Method is specified to return 'false' but its return type is not boolean">false</warning> otherwise
+   */
+  int getDataEmDash();
+
+  /**
+   * @return foo - false otherwise
+   */
+  int getDataDash();
+
   /**
    * @return true if data is found; false otherwise
    */