AthenaPoolTestData: Enable thread-safety checking.

Enable thread-safety checking and fix warnings.

AtlasTest/DatabaseTest/AthenaPoolTestData/AthenaPoolTestData/ATLAS_CHECK_THREAD_SAFETY

+AtlasTest/DatabaseTest/AthenaPoolTestData

AtlasTest/DatabaseTest/AthenaPoolTestData/AthenaPoolTestData/AthenaPoolTestMapDataLink.h

 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */
 
 /**
@@ -15,9 +15,6 @@
 #ifndef ATHENAPOOLTESTDATA_ATHENAPOOLTESTMAPDATALINK_H
 # define ATHENAPOOLTESTDATA_ATHENAPOOLTESTMAPDATALINK_H
 
-//<<<<<< INCLUDES                                                       >>>>>>
-//<<<<<< CLASS DECLARATIONS                                             >>>>>>
-
 /**
  * @class AthenaPoolTestMapDataLink 
  * 
@@ -64,7 +61,7 @@ public:
 	unsigned short m_evtIndex;
     };
 private:
-    mutable MyDummyClass* m_particle; /* transient */
+    MyDummyClass* m_particle; /* transient */
     ExtendedBarCode m_extBarcode;
 };
 

AtlasTest/DatabaseTest/AthenaPoolTestData/AthenaPoolTestData/AthenaPoolTestMatrix.h

 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */
 
 /**
@@ -24,7 +24,6 @@
 #ifndef ATHENAPOOLTESTDATA_ATHENAPOOLTESTMATRIX_H
 # define ATHENAPOOLTESTDATA_ATHENAPOOLTESTMATRIX_H
 
-//<<<<<< INCLUDES                                                       >>>>>>
 
 #include "CLHEP/Matrix/Matrix.h"
 #include "CLHEP/Geometry/Point3D.h"
@@ -32,12 +31,6 @@
 #include "AthenaKernel/CLASS_DEF.h"
 #include <map>
 
-//<<<<<< PUBLIC DEFINES                                                 >>>>>>
-//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
-//<<<<<< PUBLIC TYPES                                                   >>>>>>
-//<<<<<< PUBLIC VARIABLES                                               >>>>>>
-//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
-//<<<<<< CLASS DECLARATIONS                                             >>>>>>
 
 class AthenaPoolTestMatrix
 {
@@ -48,6 +41,9 @@ public:
     AthenaPoolTestMatrix();
 
     ~AthenaPoolTestMatrix();
+
+    AthenaPoolTestMatrix (const AthenaPoolTestMatrix&) = delete;
+    AthenaPoolTestMatrix& operator= (const AthenaPoolTestMatrix&) = delete;
     
     const CLHEP::HepMatrix&          smallMatrix     () const;
     const CLHEP::HepMatrix&          bigMatrix       () const;

AtlasTest/DatabaseTest/AthenaPoolTestData/src/AthenaPoolTestMatrix.cxx

 /*
-  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */
 
 /**
@@ -14,19 +14,9 @@
 //<doc><file>	$Id: AthenaPoolTestMatrix.cxx,v 1.11 2006-08-30 07:49:43 schaffer Exp $
 //<version>	$Name: not supported by cvs2svn $
 
-//<<<<<< INCLUDES                                                       >>>>>>
 
 #include "AthenaPoolTestData/AthenaPoolTestMatrix.h"
 
-//<<<<<< PRIVATE DEFINES                                                >>>>>>
-//<<<<<< PRIVATE CONSTANTS                                              >>>>>>
-//<<<<<< PRIVATE TYPES                                                  >>>>>>
-//<<<<<< PRIVATE VARIABLE DEFINITIONS                                   >>>>>>
-//<<<<<< PUBLIC VARIABLE DEFINITIONS                                    >>>>>>
-//<<<<<< CLASS STRUCTURE INITIALIZATION                                 >>>>>>
-//<<<<<< PRIVATE FUNCTION DEFINITIONS                                   >>>>>>
-//<<<<<< PUBLIC FUNCTION DEFINITIONS                                    >>>>>>
-//<<<<<< MEMBER FUNCTION DEFINITIONS                                    >>>>>>
 
 AthenaPoolTestMatrix::AthenaPoolTestMatrix()
     :