Factory method for named constructor creation; unused class dropped

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

@@ -108,7 +108,17 @@ public interface PsiElementFactory extends PsiJavaParserFacade, JVMElementFactor
    *
    * @return the created constructor instance.
    */
-  @NotNull PsiMethod createConstructor();
+  @NotNull
+  PsiMethod createConstructor();
+
+  /**
+   * Creates an empty constructor with a given name.
+   *
+   * @param name the name of the constructor to create.
+   * @return the created constructor instance.
+   */
+  @NotNull
+  PsiMethod createConstructor(@NotNull @NonNls String name);
 
   /**
    * Creates an empty class initializer block.

java/java-psi-impl/src/com/intellij/psi/impl/PsiElementFactoryImpl.java

@@ -218,7 +218,13 @@ public class PsiElementFactoryImpl extends PsiJavaParserFacadeImpl implements Ps
   @NotNull
   @Override
   public PsiMethod createConstructor() {
-    final PsiJavaFile aFile = createDummyJavaFile("class _Dummy_ { public _Dummy_() {} }");
+    return createConstructor("_Dummy_");
+  }
+
+  @NotNull
+  @Override
+  public PsiMethod createConstructor(@NotNull @NonNls final String name) {
+    final PsiJavaFile aFile = createDummyJavaFile(join("class ", name, " { public ", name, "() {} }"));
     final PsiMethod method = aFile.getClasses()[0].getMethods()[0];
     return (PsiMethod)CodeStyleManager.getInstance(myManager.getProject()).reformat(method);
   }