Provide decent logging

build.gradle

@@ -43,6 +43,7 @@ dependencies {
     testImplementation group: 'org.mockito', name: 'mockito-core', version: '3.0.0'
     testImplementation "net.jodah:concurrentunit:0.4.6"
     implementation "net.java.dev.jna:jna:5.5.0"
+    implementation 'org.slf4j:slf4j-api:2.0.0-alpha1'
 }
 
 

src/main/java/co/libly/resourceloader/Main.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) Libly - Terl Tech Ltd  • 24/08/2019, 16:01 • libly.co, goterl.com
+ * Copyright (c) Libly - Terl Tech Ltd  • 10/07/2020, 23:32 • libly.co, goterl.com
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v2.0. If a copy of the MPL was not distributed with this

src/main/java/co/libly/resourceloader/ResourceLoader.java

@@ -10,6 +10,8 @@
 
 
 import com.sun.jna.Platform;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.*;
 import java.net.MalformedURLException;
@@ -31,11 +33,12 @@
  */
 public class ResourceLoader {
 
+    private final Logger logger = LoggerFactory.getLogger("ResourceLoader");
+
     private final Collection<PosixFilePermission> writePerms = new ArrayList<>();
     private final Collection<PosixFilePermission> readPerms = new ArrayList<>();
     private final Collection<PosixFilePermission> execPerms = new ArrayList<>();
 
-
     ResourceLoader() {
         readPerms.add(PosixFilePermission.OWNER_READ);
         readPerms.add(PosixFilePermission.OTHERS_READ);
@@ -100,8 +103,8 @@ private boolean isJarFile(URL jarUrl) {
                 if (manifest != null) {
                     return true;
                 }
-            } catch (IOException | SecurityException | IllegalStateException e) {
-                System.out.println("Exception getting JarFile object: " + e.getMessage());
+            } catch (IOException | IllegalStateException | SecurityException e) {
+                logger.debug("This is not a JAR file due to {}", e.getMessage());
             }
         }
         return false;