diff --git a/oap-stdlib/src/main/java/oap/json/HoconFactoryWithSystemProperties.java b/oap-stdlib/src/main/java/oap/json/HoconFactoryWithSystemProperties.java
index cc84aa04a4..691be8a8ff 100644
--- a/oap-stdlib/src/main/java/oap/json/HoconFactoryWithSystemProperties.java
+++ b/oap-stdlib/src/main/java/oap/json/HoconFactoryWithSystemProperties.java
@@ -56,18 +56,26 @@ protected HoconTreeTraversingParser _createParser( Reader r, IOContext ctxt ) th
         var options = ConfigParseOptions.defaults();
 
         Object rawContent = ctxt.contentReference().getRawContent();
-        if( rawContent instanceof URL urlContext ) {
-            URL parentURL = Paths.get( urlContext.toURI() ).getParent().toUri().toURL();
+        log.trace( "rawContent {} rawContentClazz {}", rawContent, rawContent.getClass() );
 
-            options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
-        } else if( rawContent instanceof File fileContext ) {
-            URL parentURL = Paths.get( fileContext.toURI() ).getParent().toUri().toURL();
-
-            options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
-        } else if( rawContent instanceof URI uriContext ) {
-            URL parentURL = Paths.get( uriContext ).getParent().toUri().toURL();
-
-            options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
+        switch( rawContent ) {
+            case URL urlContext -> {
+                URL parentURL = urlContext.toURI().resolve( "" ).toURL();
+                log.trace( "parentURL {}", parentURL );
+                options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
+            }
+            case File fileContext -> {
+                URL parentURL = Paths.get( fileContext.toURI() ).getParent().toUri().toURL();
+                log.trace( "parentURL {}", parentURL );
+                options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
+            }
+            case URI uriContext -> {
+                URL parentURL = uriContext.resolve( "" ).toURL();
+                log.trace( "parentURL {}", parentURL );
+                options = options.setClassLoader( new URLClassLoader( new URL[] { parentURL } ) );
+            }
+            default -> {
+            }
         }
 
 
diff --git a/pom.xml b/pom.xml
index 4911e72d90..47b0bf71ed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -54,7 +54,7 @@
     </repositories>
 
     <properties>
-        <oap.project.version>21.15.2</oap.project.version>
+        <oap.project.version>21.15.3</oap.project.version>
 
         <oap.deps.config.version>21.0.0</oap.deps.config.version>
         <oap.deps.oap-teamcity.version>21.0.1</oap.deps.oap-teamcity.version>