diff --git a/launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/launch/LaunchCommandBuilder.java b/launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/launch/LaunchCommandBuilder.java
index d6044e2..4326675 100644
--- a/launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/launch/LaunchCommandBuilder.java
+++ b/launcher/launcher/src/main/java/sashegdev/zernmc/launcher/minecraft/launch/LaunchCommandBuilder.java
@@ -85,6 +85,15 @@ public class LaunchCommandBuilder {
 
             String cpFile = writeClasspathFile(classpath);
 
+            // DEBUG: print classpath entries to identify split-package sources
+            String sep = System.getProperty("os.name").toLowerCase().contains("win") ? ";" : ":";
+            System.out.println(ZAnsi.cyan("  === CLASSPATH ENTRIES (" + classpath.split(sep.replace("\\","\\\\")).length + " jars) ==="));
+            for (String entry : classpath.split(sep.replace("\\","\\\\"))) {
+                String fileName = entry.contains("/") ? entry.substring(entry.lastIndexOf('/') + 1) : entry.substring(entry.lastIndexOf('\\') + 1);
+                System.out.println(ZAnsi.cyan("  CP: " + fileName));
+            }
+            System.out.println(ZAnsi.cyan("  === END CLASSPATH ==="));
+
             // Build variable map for placeholder substitution
             Map<String, String> vars = buildVariableMap(options);
             vars.put("classpath", cpFile);