Merge pull request #22403 from Karm/awt-ts-jdk-compatibility

AWT - resource files lookup: Replaces MethodHandles.lookup()

extensions/awt/runtime/src/main/java/io/quarkus/awt/runtime/JDKSubstitutions.java

@@ -1,7 +1,6 @@
 package io.quarkus.awt.runtime;
 
 import java.io.InputStream;
-import java.lang.invoke.MethodHandles;
 import java.util.PropertyResourceBundle;
 
 import com.oracle.svm.core.annotate.Substitute;
@@ -17,12 +16,10 @@ final class Target_com_sun_imageio_plugins_common_I18NImpl {
 
     @Substitute
     private static String getString(String className, String resource_name, String key) {
-        // The property file is now stored in the root of the tree
-        resource_name = "/" + resource_name;
         PropertyResourceBundle bundle = null;
         try {
             // className ignored, there is only one such file in the imageio anyway
-            InputStream stream = MethodHandles.lookup().lookupClass().getResourceAsStream(resource_name);
+            InputStream stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource_name);
             bundle = new PropertyResourceBundle(stream);
         } catch (Throwable e) {
             throw new RuntimeException(e);