Add test case for issue #188

.gitignore

@@ -35,3 +35,4 @@ nb-configuration.xml
 # mac
 .DS_Store
 
+/target-test/

api/pom.xml

@@ -76,6 +76,15 @@
         <url>https://github.com/eclipse-ee4j/el-ri/issues</url>
     </issueManagement>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>5.8.1</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
     <properties>
         <!-- Make sure the two versions are in sync with the maven version -->
         <spec.version>6.0</spec.version>
@@ -136,6 +145,13 @@
                 </configuration>
             </plugin>
 
+            <!-- Execute unit tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.0.0-M5</version>
+            </plugin>
+
             <!-- Checks copyright / license headers -->
             <plugin>
                 <groupId>org.glassfish.copyright</groupId>

api/src/test/java/jakarta/el/TestELUtil.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ * 
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+package jakarta.el;
+
+import java.lang.reflect.Method;
+import java.util.TimeZone;
+
+import org.junit.jupiter.api.Test;
+
+public class TestELUtil {
+
+    /*
+     * https://github.com/jakartaee/expression-language/issues/188
+     */
+    @Test
+    public void testAccessibleMethod() throws Exception {
+        TimeZone tz = TimeZone.getDefault();
+        Method m = ELUtil.findMethod(tz.getClass(), tz, "getRawOffset", null, null);
+        m.invoke(tz);
+    }
+}