Java: annotate PsiExpressionListStatement.getExpressionList() as @NotNull

GitOrigin-RevId: 509212ab37f403b04109dc7535cc4a6e1fdf3478

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

@@ -1,23 +1,14 @@
-/*
- * Copyright 2000-2009 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the 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.psi;
 
+import org.jetbrains.annotations.NotNull;
+
 /**
- * Represents the list of expressions separated by commas, used as the initialize
+ * Represents a list of expressions separated by commas, used as the initialize
  * or update part of a {@code for} loop.
+ * 
+ * @see PsiForStatement#getInitialization() 
+ * @see PsiForStatement#getUpdate() 
  */
 public interface PsiExpressionListStatement extends PsiStatement {
   /**
@@ -25,6 +16,5 @@ public interface PsiExpressionListStatement extends PsiStatement {
    *
    * @return the expression list instance.
    */
-  PsiExpressionList getExpressionList();
-
+  @NotNull PsiExpressionList getExpressionList();
 }