#79 throw exception when class is private and encoder is dynamic

Author: taowen

src/main/java/com/jsoniter/output/Codegen.java

@@ -72,7 +72,11 @@ private static synchronized Encoder gen(final String cacheKey, Type type) {
         try {
             EncodingMode mode = JsoniterSpi.getCurrentConfig().encodingMode();
             if (mode != EncodingMode.REFLECTION_MODE) {
+                Type originalType = type;
                 type = chooseAccessibleSuper(type);
+                if (Object.class == type) {
+                    throw new JsonException("dynamic code can not serialize private class: " + originalType);
+                }
             }
             ClassInfo classInfo = new ClassInfo(type);
             if (Map.class.isAssignableFrom(classInfo.clazz) && classInfo.typeArgs.length > 1) {

src/test/java/com/jsoniter/output/TestObject.java

@@ -3,6 +3,7 @@
 import com.jsoniter.annotation.JsonIgnore;
 import com.jsoniter.annotation.JsonProperty;
 import com.jsoniter.spi.Config;
+import com.jsoniter.spi.JsoniterSpi;
 import com.jsoniter.spi.TypeLiteral;
 import junit.framework.TestCase;
 
@@ -250,4 +251,15 @@ public void test_name_conflict() throws IOException {
         stream.close();
         assertEquals("{\"field1\":0}", baos.toString());
     }
+
+    private static class TestObject13 {
+    }
+
+    public void test_private_class() {
+        EncodingMode encodingMode = JsoniterSpi.getCurrentConfig().encodingMode();
+        if (EncodingMode.REFLECTION_MODE.equals(encodingMode)) {
+            return;
+        }
+        JsonStream.serialize(new TestObject13());
+    }
 }