Merge pull request #454 from tzarouali/issue-447

Fix for issue #447. Ignore bean properties without a proper setter/ge…

config/src/main/java/com/typesafe/config/impl/ConfigBeanImpl.java

@@ -277,7 +277,7 @@ public class ConfigBeanImpl {
 
     private static boolean isOptionalProperty(Class beanClass, PropertyDescriptor beanProp) {
         Field field = getField(beanClass, beanProp.getName());
-        return (field.getAnnotationsByType(Optional.class).length > 0);
+        return field != null && (field.getAnnotationsByType(Optional.class).length > 0);
     }
 
     private static Field getField(Class beanClass, String fieldName) {

config/src/test/java/beanconfig/DifferentFieldNameFromAccessorsConfig.java

@@ -0,0 +1,24 @@
+package beanconfig;
+
+public class DifferentFieldNameFromAccessorsConfig {
+
+    private String customStringField;
+    private Long number;
+
+
+    public String getStringField() {
+        return customStringField;
+    }
+
+    public void setStringField(String stringField) {
+        this.customStringField = stringField;
+    }
+
+    public Long getNumber() {
+        return number;
+    }
+
+    public void setNumber(Long number) {
+        this.number = number;
+    }
+}

config/src/test/scala/com/typesafe/config/impl/ConfigBeanFactoryTest.scala

@@ -237,6 +237,14 @@ class ConfigBeanFactoryTest extends TestUtils {
         assertTrue("error about the right property", e.getMessage.contains("'map'"))
     }
 
+    @Test
+    def testDifferentFieldNameFromAccessors(): Unit = {
+        val e = intercept[ConfigException.ValidationFailed] {
+            ConfigBeanFactory.create(ConfigFactory.empty(), classOf[DifferentFieldNameFromAccessorsConfig])
+        }
+        assertTrue("only one missing value error", e.getMessage.contains("No setting"))
+    }
+
     private def loadConfig(): Config = {
         val configIs: InputStream = this.getClass().getClassLoader().getResourceAsStream("beanconfig/beanconfig01.conf")
         try {