Using JPMS and jna start module.

pom.xml

@@ -21,14 +21,14 @@
     <jdk.version.minimum>17</jdk.version.minimum>
     <jetty-test-helper.version>6.2</jetty-test-helper.version>
     <jetty.git.repo>jetty-setuid-jna</jetty.git.repo>
-    <jetty.version>12.0.6</jetty.version>
+    <jetty.version>12.0.7</jetty.version>
     <jna.version>5.14.0</jna.version>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>net.java.dev.jna</groupId>
-      <artifactId>jna</artifactId>
+      <artifactId>jna-jpms</artifactId>
       <version>${jna.version}</version>
     </dependency>
     <dependency>

src/main/config/modules/setuid.mod

@@ -7,18 +7,16 @@ changing to a restricted user (e.g. Jetty).
 
 [depend]
 server
+jna
 
 [lib]
 lib/setuid/jetty-setuid-jna-${jetty-setuid.version}.jar
-lib/setuid/jna-${jna.version}.jar
 
 [ini]
 jetty-setuid.version?=@project.version@
-jna.version?=@jna.version@
 
 [files]
 maven://org.eclipse.jetty.toolchain.setuid/jetty-setuid-jna/${jetty-setuid.version}|lib/setuid/jetty-setuid-jna-${jetty-setuid.version}.jar
-maven://net.java.dev.jna/jna/${jna.version}|lib/setuid/jna-${jna.version}.jar
 
 [xml]
 etc/jetty-setuid.xml

src/main/java/module-info.java

@@ -0,0 +1,25 @@
+//
+// ========================================================================
+// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
+//
+// This program and the accompanying materials are made available under the
+// terms of the Eclipse Public License v. 2.0 which is available at
+// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
+// which is available at https://www.apache.org/licenses/LICENSE-2.0.
+//
+// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+// ========================================================================
+//
+
+module org.eclipse.jetty.setuid.jna
+{
+    requires com.sun.jna;
+    requires org.eclipse.jetty.server;
+    requires org.eclipse.jetty.util;
+    requires org.slf4j;
+
+    // needed to allow internal classes to use com.sun.jna
+    opens org.eclipse.jetty.setuid.internal;
+
+    exports org.eclipse.jetty.setuid;
+}

src/main/java/org/eclipse/jetty/setuid/SetUIDListener.java

@@ -16,6 +16,9 @@
 import org.eclipse.jetty.server.Connector;
 import org.eclipse.jetty.server.NetworkConnector;
 import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.setuid.internal.Group;
+import org.eclipse.jetty.setuid.internal.LibC;
+import org.eclipse.jetty.setuid.internal.Passwd;
 import org.eclipse.jetty.util.component.LifeCycle;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

src/main/java/org/eclipse/jetty/setuid/Group.java → src/main/java/org/eclipse/jetty/setuid/internal/Group.java

@@ -11,7 +11,7 @@
 // ========================================================================
 //
 
-package org.eclipse.jetty.setuid;
+package org.eclipse.jetty.setuid.internal;
 
 import com.sun.jna.Pointer;
 import com.sun.jna.Structure;

src/main/java/org/eclipse/jetty/setuid/LibC.java → src/main/java/org/eclipse/jetty/setuid/internal/LibC.java

@@ -11,11 +11,12 @@
 // ========================================================================
 //
 
-package org.eclipse.jetty.setuid;
+package org.eclipse.jetty.setuid.internal;
 
 import com.sun.jna.Library;
 import com.sun.jna.Native;
 import com.sun.jna.Platform;
+import org.eclipse.jetty.setuid.RLimit;
 
 /**
  * Class is for changing user and groupId, it can also be use to retrieve user information by using getpwuid(uid) or getpwnam(username) of both linux and unix

src/main/java/org/eclipse/jetty/setuid/Passwd.java → src/main/java/org/eclipse/jetty/setuid/internal/Passwd.java

@@ -11,7 +11,7 @@
 // ========================================================================
 //
 
-package org.eclipse.jetty.setuid;
+package org.eclipse.jetty.setuid.internal;
 
 import com.sun.jna.Structure;
 

src/test/java/org/eclipse/jetty/setuid/TestLibC.java

@@ -18,6 +18,9 @@
 import java.nio.file.attribute.PosixFilePermission;
 import java.util.Set;
 
+import org.eclipse.jetty.setuid.internal.Group;
+import org.eclipse.jetty.setuid.internal.LibC;
+import org.eclipse.jetty.setuid.internal.Passwd;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;