hotfix 2944: broken icon paths in rusefi_autoupdate (#3043)

* fix: successfully replaced standard resources loader to custom dynamic resources loader

* fix: successfully replaced standard resources loader to custom dynamic resources loader

java_console/autoupdate/src/main/java/com/rusefi/autoupdate/AutoupdateUtil.java

@@ -3,6 +3,7 @@ package com.rusefi.autoupdate;
 import com.rusefi.shared.ConnectionAndMeta;
 import com.rusefi.ui.util.FrameHelper;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import java.awt.*;
@@ -10,6 +11,7 @@ import java.io.*;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
+import java.net.URLStreamHandlerFactory;
 import java.util.Date;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -51,11 +53,42 @@ public class AutoupdateUtil {
         }
     }
 
+    private static class DynamicForResourcesURLClassLoader extends URLClassLoader {
+
+        public DynamicForResourcesURLClassLoader( URL[] urls, ClassLoader parent ) { super( urls, parent ); }
+
+        public DynamicForResourcesURLClassLoader( URL[] urls ) { super( urls ); }
+
+        public DynamicForResourcesURLClassLoader( URL[] urls, ClassLoader parent, URLStreamHandlerFactory factory ) { super( urls, parent, factory ); }
+
+        @Override
+        public void addURL( URL url ) {
+            super.addURL( url );
+        }
+
+        /**
+         * Let's here emulate Class.getResource() logic
+         * @param name resource name
+         * @return resource url
+         */
+        @Nullable
+        @Override
+        public URL getResource( String name ) {
+            if ( name.startsWith( "/" ) )
+                name = name.substring( 1 );
+            return super.getResource( name );
+        }
+    }
+
+    private static final DynamicForResourcesURLClassLoader dynamicResourcesLoader = new DynamicForResourcesURLClassLoader( new URL[ 0 ], AutoupdateUtil.class.getClassLoader() );
+
     @NotNull
     public static URLClassLoader getClassLoaderByJar(String jar) throws MalformedURLException {
+        final URL jarURL = new File( jar ).toURI().toURL();
+        dynamicResourcesLoader.addURL( jarURL );
         return new URLClassLoader(
                 new URL[]{ new File( jar ).toURI().toURL() },
-                AutoupdateUtil.class.getClassLoader()
+                dynamicResourcesLoader
         );
     }
 
@@ -74,11 +107,11 @@ public class AutoupdateUtil {
     }
 
     public static ImageIcon loadIcon( String strPath ) {
-        URL imgURL = AutoupdateUtil.class.getResource(strPath);
+        URL imgURL = dynamicResourcesLoader.getResource( strPath );
         if (imgURL != null) {
             return new ImageIcon(imgURL);
         } else {
-            imgURL = AutoupdateUtil.class.getResource("/com/rusefi/" + strPath);
+            imgURL = dynamicResourcesLoader.getResource("/com/rusefi/" + strPath);
             if (imgURL != null) {
                 return new ImageIcon(imgURL);
             }