diff --git a/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java b/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java
index 8db4eb6..5efb062 100644
--- a/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java
+++ b/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java
@@ -48,7 +48,7 @@ public class ResourceScriptEvaluator extends AbstractScriptEvaluator {
     private final String engineName;
 
     /**
-     * @param engineName optional engine name, used to override the engine selection from the file extension
+     * @param engineName   optional engine name, used to override the engine selection from the file extension
      * @param resourceName not null
      */
     public ResourceScriptEvaluator(String engineName, String resourceName) {
@@ -58,7 +58,7 @@ public ResourceScriptEvaluator(String engineName, String resourceName) {
     }
 
     /**
-     * @param engine the script engine
+     * @param engine  the script engine
      * @param context the script context
      * @return the result of the scriptFile
      * @throws ScriptException if an error occurs in script
@@ -66,9 +66,15 @@ public ResourceScriptEvaluator(String engineName, String resourceName) {
      */
     protected Object eval(ScriptEngine engine, ScriptContext context) throws ScriptException {
 
-        try (InputStream is = this.getClass().getClassLoader().getResourceAsStream(resourceName);
-                Reader reader = new InputStreamReader(is)) {
-            return engine.eval(reader, context);
+        try (InputStream is = this.getClass().getClassLoader().getResourceAsStream(resourceName)) {
+
+            if (is == null) {
+                throw new ScriptException("Resource not found: " + resourceName);
+            }
+
+            try (Reader reader = new InputStreamReader(is)) {
+                return engine.eval(reader, context);
+            }
         } catch (IOException ex) {
             throw new UncheckedIOException(resourceName + " caused:", ex);
         }