From 9fdb91243caa95c7b29f8ad056113a454f2e72d8 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 28 Dec 2025 08:41:34 +0000
Subject: [PATCH 1/3] Initial plan


From 7763e60411497a18feb519bd9857d9727847b27f Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 28 Dec 2025 08:44:17 +0000
Subject: [PATCH 2/3] feat(detector): introduce Detector interface and package

Co-authored-by: hsluoyz <3787410+hsluoyz@users.noreply.github.com>
---
 .../org/casbin/jcasbin/detector/Detector.java | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/main/java/org/casbin/jcasbin/detector/Detector.java

diff --git a/src/main/java/org/casbin/jcasbin/detector/Detector.java b/src/main/java/org/casbin/jcasbin/detector/Detector.java
new file mode 100644
index 00000000..a2064012
--- /dev/null
+++ b/src/main/java/org/casbin/jcasbin/detector/Detector.java
@@ -0,0 +1,29 @@
+// Copyright 2017 The casbin Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package org.casbin.jcasbin.detector;
+
+import org.casbin.jcasbin.rbac.RoleManager;
+
+/**
+ * Detector defines the interface of a policy consistency checker, currently used to detect RBAC inheritance cycles.
+ */
+public interface Detector {
+    /**
+     * Checks whether the current status of the passed-in RoleManager contains logical errors (e.g., cycles in role inheritance).
+     * @param rm RoleManager instance
+     * @return If an error is found, return a description message; otherwise return null
+     */
+    String check(RoleManager rm);
+}

From d162d2c8807ece544b2213ccd6d32805673cc2ae Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 28 Dec 2025 08:45:29 +0000
Subject: [PATCH 3/3] fix: update copyright year to 2025 for new file

Co-authored-by: hsluoyz <3787410+hsluoyz@users.noreply.github.com>
---
 src/main/java/org/casbin/jcasbin/detector/Detector.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/casbin/jcasbin/detector/Detector.java b/src/main/java/org/casbin/jcasbin/detector/Detector.java
index a2064012..20ab3dc8 100644
--- a/src/main/java/org/casbin/jcasbin/detector/Detector.java
+++ b/src/main/java/org/casbin/jcasbin/detector/Detector.java
@@ -1,4 +1,4 @@
-// Copyright 2017 The casbin Authors. All Rights Reserved.
+// Copyright 2025 The casbin Authors. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.