diff --git a/java/execution/impl/src/com/intellij/execution/applet/AppletConfiguration.java b/java/execution/impl/src/com/intellij/execution/applet/AppletConfiguration.java
index 6773ac3029ff..17a90c945d89 100644
--- a/java/execution/impl/src/com/intellij/execution/applet/AppletConfiguration.java
+++ b/java/execution/impl/src/com/intellij/execution/applet/AppletConfiguration.java
@@ -257,10 +257,13 @@ public class AppletConfiguration extends ModuleBasedConfiguration<JavaRunConfigu
         throw new RuntimeConfigurationWarning(ExecutionBundle.message("html.file.not.specified.error.message"));
       }
       try {
-        new URL(HTML_FILE_NAME);
+        new URL(getHtmlURL().getUrl());
+      }
+      catch (CantRunException ex) {
+        checkUrlIsValid(ex);
       }
       catch (MalformedURLException ex) {
-        throw new RuntimeConfigurationWarning("URL " + HTML_FILE_NAME + " is not valid: " + ex.getLocalizedMessage());
+        checkUrlIsValid(ex);
       }
     }
     else {
@@ -268,6 +271,10 @@ public class AppletConfiguration extends ModuleBasedConfiguration<JavaRunConfigu
     }
   }
 
+  private void checkUrlIsValid(Exception ex) throws RuntimeConfigurationWarning {
+    throw new RuntimeConfigurationWarning("URL " + HTML_FILE_NAME + " is not valid: " + ex.getLocalizedMessage());
+  }
+
   public AppletParameter[] getAppletParameters() {
     return myAppletParameters;
   }