Added test case for #438 (#811)

* Added test case for #438

impl/src/test/groovy/io/jsonwebtoken/issues/Issue438Test.groovy

@@ -0,0 +1,33 @@
+/*
+ * Copyright © 2023 jsonwebtoken.io
+ *
+ * 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.
+ */
+package io.jsonwebtoken.issues
+
+import io.jsonwebtoken.Jwts
+import io.jsonwebtoken.UnsupportedJwtException
+import io.jsonwebtoken.impl.security.TestKeys
+import org.junit.Test
+
+/**
+ * https://github.com/jwtk/jjwt/issues/438
+ */
+class Issue438Test {
+
+    @Test(expected = UnsupportedJwtException /* not IllegalArgumentException */)
+    void testIssue438() {
+        String jws = Jwts.builder().audience('test').signWith(TestKeys.RS256.pair.private).compact()
+        Jwts.parser().verifyWith(TestKeys.HS256).build().parseClaimsJws(jws)
+    }
+}