From 5c26d0df6ee6e98027c2d41375cd6961b6ec38f9 Mon Sep 17 00:00:00 2001
From: Liam Miller-Cushon <cushon@google.com>
Date: Thu, 18 Jul 2024 07:41:26 -0700
Subject: [PATCH] Fix `ASTHelpers#isRuleKind` on JDK versions without
 `CaseTree#getCaseKind`

Fixes https://github.com/google/error-prone/issues/4479#issuecomment-2235327984

PiperOrigin-RevId: 653615823
---
 .../src/main/java/com/google/errorprone/util/ASTHelpers.java   | 3 +++
 .../bugpatterns/TraditionalSwitchExpressionTest.java           | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java b/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java
index 1707c6a4b50..79bf0896a8f 100644
--- a/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java
+++ b/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java
@@ -2813,6 +2813,9 @@ private static Method getCaseTreeGetExpressionsMethod() {
    * <expression>}.
    */
   public static boolean isRuleKind(CaseTree caseTree) {
+    if (GET_CASE_KIND_METHOD == null) {
+      return false;
+    }
     Enum<?> kind;
     try {
       kind = (Enum<?>) GET_CASE_KIND_METHOD.invoke(caseTree);
diff --git a/core/src/test/java/com/google/errorprone/bugpatterns/TraditionalSwitchExpressionTest.java b/core/src/test/java/com/google/errorprone/bugpatterns/TraditionalSwitchExpressionTest.java
index 931626e04b4..00a3dbc18c4 100644
--- a/core/src/test/java/com/google/errorprone/bugpatterns/TraditionalSwitchExpressionTest.java
+++ b/core/src/test/java/com/google/errorprone/bugpatterns/TraditionalSwitchExpressionTest.java
@@ -50,7 +50,6 @@ public void positive() {
 
   @Test
   public void negativeStatement() {
-    assumeTrue(RuntimeVersion.isAtLeast14());
     testHelper
         .addSourceLines(
             "Test.java",