new approach test

Author: jandro996

dd-java-agent/appsec/src/test/groovy/com/datadog/appsec/event/data/ObjectIntrospectionSpecification.groovy

@@ -583,4 +583,40 @@ class ObjectIntrospectionSpecification extends DDSpecification {
       return map.entrySet().iterator()
     }
   }
+
+  static class DtoWithLogger {
+    String userId = 'user123'
+    java.util.logging.Logger logger = java.util.logging.Logger.getLogger('test')
+    String payload = 'data'
+  }
+
+  void 'logging framework fields are excluded from introspection'() {
+    given:
+    def input = new DtoWithLogger()
+
+    when:
+    def result = convert(input, ctx) as Map
+
+    then:
+    result['userId'] == 'user123'
+    result['payload'] == 'data'
+    !result.containsKey('logger')
+  }
+
+  static class WrapperWithSoftRef {
+    String name = 'test'
+    java.lang.ref.SoftReference<String> ref = new java.lang.ref.SoftReference<>('test')
+  }
+
+  void 'objects with inaccessible JDK fields skip those fields rather than expose toString()'() {
+    given:
+    def input = new WrapperWithSoftRef()
+
+    when:
+    def result = convert(input, ctx) as Map
+
+    then:
+    result['name'] == 'test'
+    result['ref'] instanceof Map
+  }
 }