--- conf/catalina.policy.orig	2021-07-07 10:25:53.461393329 +0800
+++ conf/catalina.policy	2021-07-07 10:27:47.688682404 +0800
@@ -56,6 +56,16 @@ grant codeBase "file:${java.home}/lib/ex
 //        permission java.security.AllPermission;
 //};
 
+// ========== RHEL SPECIFIC CODE PERMISSIONS =======================================
+
+
+// Allowing everything in /usr/share/java allows too many unknowns to be permitted
+// Specifying the individual jars that tomcat needs to function with the security manager
+// is the safest way forward.
+grant codeBase "file:/usr/share/java/ecj/ecj.jar" {
+        permission java.security.AllPermission;
+};
+
 
 // ========== CATALINA CODE PERMISSIONS =======================================
 
@@ -261,4 +271,4 @@ grant codeBase "file:${catalina.home}/we
 //
 // The permissions granted to a specific JAR
 // grant codeBase "war:file:${catalina.base}/webapps/examples.war*/WEB-INF/lib/foo.jar" {
-// };
\ No newline at end of file
+// };