Generate jdk-internal signature only till Java 23, later versions need to be administered manually (or removed when unsafe is gone)

Author: uschindler

src/main/resources/de/thetaphi/forbiddenapis/signatures/jdk-internal-24.txt

@@ -1,8 +1,21 @@
-# This file contains API signatures that are marked as internal in Java.
-# It is provided here for reference, but can easily regenerated by executing from the source folder of forbidden-apis:
-# $ ant generate-internal
+# (C) Copyright Uwe Schindler (Generics Policeman) and others.
+#
+# 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.
 
-# This file contains all internal packages listed in Security.getProperty("package.access") of Java version 24 (extracted from build 24).
+# This file is no longer autogenerated starting from Java 24 because SecurityManager was removed
+# and therefore relevant system properties used to generate the package list.
 
 @defaultMessage non-public internal runtime class in Java 24
 
+sun.misc.**
+sun.reflect.**

src/tools/java/de/thetaphi/forbiddenapis/InternalApiGen.java

@@ -53,6 +53,14 @@ public final class InternalApiGen {
       .append("@defaultMessage non-public internal runtime class in Java ").append(javaVersion).append(NL)
       .append(NL)
       .toString();
+    try {
+      int v = Integer.parseInt(javaVersion);
+      if (v >= 24) {
+        throw new IllegalArgumentException("InternalApiGen only works till Java 23, for later versions use the generated file from Java 23.");
+      }
+    } catch (NumberFormatException nfe) {
+      // pass
+    }
   }
 
   private void parsePackages(String packagesStr, Set<String> packages) {