diff --git a/.github/workflows/build-natives.yml b/.github/workflows/build-natives.yml
index bed22650..be29802f 100644
--- a/.github/workflows/build-natives.yml
+++ b/.github/workflows/build-natives.yml
@@ -27,13 +27,13 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v3
         with:
-          distribution: 'temurin'
+          distribution: 'zulu'
           java-version: '8'
       - run: echo "JAVA_8=$JAVA_HOME" >> $GITHUB_ENV
       - name: Set up JDK 11
         uses: actions/setup-java@v3
         with:
-          distribution: 'temurin'
+          distribution: 'zulu'
           java-version: '11'
       - run: echo "JAVA_11=$JAVA_HOME" >> $GITHUB_ENV
       - name: Cache Gradle packages
diff --git a/example/suite/src/main/java/party/iroiro/luajava/LuaTestSuite.java b/example/suite/src/main/java/party/iroiro/luajava/LuaTestSuite.java
index 4fc2ba86..b4b43e4c 100644
--- a/example/suite/src/main/java/party/iroiro/luajava/LuaTestSuite.java
+++ b/example/suite/src/main/java/party/iroiro/luajava/LuaTestSuite.java
@@ -279,8 +279,6 @@ private void testException() {
         assertEquals(message, Objects.requireNonNull(L.getJavaError()).getMessage());
         L.run("java.import('java.lang.String')");
         assertNull(L.getJavaError());
-        if (!instanceOfLuaJ(L)) {
-        }
 
         assertEquals(-1, L.error(new RuntimeException(message)));
         assertEquals(expected, L.toString(-1));