--- old/src/hotspot/os/linux/cgroupSubsystem_linux.hpp	2019-10-14 20:38:38.720931207 +0200
+++ new/src/hotspot/os/linux/cgroupSubsystem_linux.hpp	2019-10-14 20:38:38.594930944 +0200
@@ -181,6 +181,9 @@
   log_trace(os, container)(logstring, variable);                          \
 }
 
+// Four controllers: cpu, cpuset, cpuacct, memory
+#define CG_INFO_LENGTH 4
+
 class CgroupSubsystem: CHeapObj<mtInternal> {
   friend class CgroupSubsystemFactory;
   public:
@@ -204,4 +207,18 @@
     static CgroupSubsystem* create();
 };
 
+// Class representing info in /proc/self/cgroup.
+// See man 7 cgroups
+class CgroupInfo : public StackObj {
+  friend class CgroupSubsystemFactory;
+
+  private:
+  char* _name;
+  int _hierarchy_id;
+  bool _enabled;
+  char* _cgroup_path;
+
+};
+
+
 #endif // CGROUP_SUBSYSTEM_LINUX_HPP