Raise a exception when keyProperty is not found

src/main/java/org/apache/ibatis/executor/keygen/Jdbc3KeyGenerator.java

@@ -115,10 +115,14 @@ private TypeHandler<?>[] getTypeHandlers(TypeHandlerRegistry typeHandlerRegistry
 
   private void populateKeys(ResultSet rs, MetaObject metaParam, String[] keyProperties, TypeHandler<?>[] typeHandlers) throws SQLException {
     for (int i = 0; i < keyProperties.length; i++) {
+      String property = keyProperties[i];
+      if (!metaParam.hasSetter(property)) {
+        throw new ExecutorException("No setter found for the keyProperty '" + property + "' in " + metaParam.getOriginalObject().getClass().getName() + ".");
+      }
       TypeHandler<?> th = typeHandlers[i];
       if (th != null) {
         Object value = th.getResult(rs, i + 1);
-        metaParam.setValue(keyProperties[i], value);
+        metaParam.setValue(property, value);
       }
     }
   }

src/test/java/org/apache/ibatis/submitted/keygen/CountryMapper.java

@@ -20,5 +20,6 @@
 public interface CountryMapper {
 
   int insertList(List<Country> countries);
+  int insertUndefineKeyProperty(Country country);
 
 }

src/test/java/org/apache/ibatis/submitted/keygen/CountryMapper.xml

@@ -27,4 +27,7 @@
           (#{country.countryname},#{country.countrycode})
       </foreach>
   </insert>
+  <insert id="insertUndefineKeyProperty" parameterType="org.apache.ibatis.submitted.keygen.Country" useGeneratedKeys="true" keyProperty="country_id">
+      insert into country (countryname,countrycode) values (#{countryname},#{countrycode})
+  </insert>
 </mapper>

src/test/java/org/apache/ibatis/submitted/keygen/Jdbc3KeyGeneratorTest.java

@@ -22,13 +22,20 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.ibatis.exceptions.PersistenceException;
+import org.apache.ibatis.executor.ExecutorException;
 import org.apache.ibatis.io.Resources;
 import org.apache.ibatis.jdbc.ScriptRunner;
 import org.apache.ibatis.session.SqlSession;
 import org.apache.ibatis.session.SqlSessionFactory;
 import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+import org.hamcrest.CoreMatchers;
 import org.junit.BeforeClass;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import static org.hamcrest.CoreMatchers.*;
 
 /**
  * @author liuzh
@@ -37,6 +44,9 @@ public class Jdbc3KeyGeneratorTest {
 
   private static SqlSessionFactory sqlSessionFactory;
 
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
   @BeforeClass
   public static void setUp() throws Exception {
     // create an SqlSessionFactory
@@ -73,4 +83,20 @@ public void shouldInsertListAndRetrieveId() throws Exception {
       sqlSession.close();
     }
   }
+
+  @Test
+  public void shouldErrorUndefineProperty()  {
+    SqlSession sqlSession = sqlSessionFactory.openSession();
+    try {
+      CountryMapper mapper = sqlSession.getMapper(CountryMapper.class);
+
+      expectedException.expect(PersistenceException.class);
+      expectedException.expectMessage(containsString("### Error updating database.  Cause: org.apache.ibatis.executor.ExecutorException: Error getting generated key or setting result to parameter object. Cause: org.apache.ibatis.executor.ExecutorException: No setter found for the keyProperty 'country_id' in org.apache.ibatis.submitted.keygen.Country."));
+
+      mapper.insertUndefineKeyProperty(new Country("China", "CN"));
+    } finally {
+      sqlSession.rollback();
+      sqlSession.close();
+    }
+  }
 }