Remove JNA

Author: sungshik

pom.xml

@@ -74,7 +74,6 @@
     <checkerframework.version>3.49.5</checkerframework.version>
     <junit.version>5.13.2</junit.version>
     <log4j.version>2.25.0</log4j.version>
-    <jna.version>5.17.0</jna.version>
     <maven.compiler.source>11</maven.compiler.source>
     <maven.compiler.target>11</maven.compiler.target>
     <watch.mac.backend>fsevents</watch.mac.backend>
@@ -242,16 +241,6 @@
       <version>${log4j.version}</version>
       <scope>test</scope>
     </dependency>
-    <dependency>
-      <groupId>net.java.dev.jna</groupId>
-      <artifactId>jna</artifactId>
-      <version>${jna.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>net.java.dev.jna</groupId>
-      <artifactId>jna-platform</artifactId>
-      <version>${jna.version}</version>
-    </dependency>
   </dependencies>
 
   <profiles>

src/main/java/engineering/swat/watch/impl/jdk/JDKPoller.java

@@ -56,6 +56,7 @@
 
 import engineering.swat.watch.DaemonThreadPool;
 import engineering.swat.watch.impl.mac.MacWatchService;
+import engineering.swat.watch.impl.mac.NativeLibrary;
 import engineering.swat.watch.impl.util.SubscriptionKey;
 
 /**
@@ -189,7 +190,7 @@ public Watchable newWatchable(Path path) {
         static final Platform CURRENT = current(); // Assumption: the platform doesn't change
 
         private static Platform current() {
-            if (com.sun.jna.Platform.isMac()) {
+            if (NativeLibrary.isMac()) {
                 var key = "engineering.swat.java-watch.mac";
                 var val = System.getProperty(key);
                 if (val != null) {

src/main/java/engineering/swat/watch/impl/mac/NativeEventStream.java

@@ -30,10 +30,9 @@
 import java.io.IOException;
 import java.nio.file.Path;
 
-// Note: This file is designed to be the only place in this package where JNA is
-// used and/or the native APIs are invoked. If the need to do so arises outside
-// this file, consider extending this file to offer the required services
-// without exposing JNA and/or the native APIs.
+// Note: This file is designed to be the only place in this package where native
+// APIs are invoked. If the need to do so arises outside this file, consider
+// extending this file to offer the required services without the native APIs.
 
 /**
  * <p>

src/main/java/engineering/swat/watch/impl/mac/NativeLibrary.java

@@ -40,7 +40,7 @@ public class NativeLibrary {
     public static native long start(String path, NativeEventHandler handler);
     public static native void stop(long watchId);
 
-    private static boolean isMac() {
+    public static boolean isMac() {
         var os = System.getProperty("os.name");
         return os != null && (os.toLowerCase().contains("mac") || os.toLowerCase().contains("darwin"));
     }