src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/scripting/NashornScriptEngineFactory.java

@@ -127,14 +127,15 @@
         }
     }
 
     @Override
     public String getProgram(final String... statements) {
+        Objects.requireNonNull(statements);
         final StringBuilder sb = new StringBuilder();
 
         for (final String statement : statements) {
-            sb.append(statement).append(';');
+            sb.append(Objects.requireNonNull(statement)).append(';');
         }
 
         return sb.toString();
     }