HV-1750 Use a privileged action to get the context class loader

engine/src/main/java/org/hibernate/validator/messageinterpolation/ResourceBundleMessageInterpolator.java

@@ -171,7 +171,7 @@ private static boolean canLoadExpressionFactory() {
 		}
 		catch (Throwable e) {
 			LOG.debugv( e, "Failed to load expression factory via classloader {0}",
-					Thread.currentThread().getContextClassLoader() );
+					run( GetClassLoader.fromContext() ) );
 			return false;
 		}
 	}