When compiling jdk.accessibility with VS2017, the following warnings are triggered. I will disable them from the makefile, but the component team should investigate if this should be fixed properly.

c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1729): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1729): warning C4302: 'type cast': truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1784): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1784): warning C4302: 'type cast': truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1870): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1870): warning C4302: 'type cast': truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1954): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(1954): warning C4302: 'type cast': truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(2007): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/JavaAccessBridge.cpp(2007): warning C4302: 'type cast': truncation from 'HWND' to 'long'

c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/AccessBridgeATInstance.cpp(150): warning C4312: 'type cast': conversion from 'DWORD' to 'void *' of greater size
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/AccessBridgeATInstance.cpp(200): warning C4311: 'type cast': pointer truncation from 'EVENT_STRUCT *' to 'DWORD'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libjavaaccessbridge/AccessBridgeATInstance.cpp(200): warning C4302: 'type cast': truncation from 'EVENT_STRUCT *' to 'DWORD'

c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(181): warning C4312: 'type cast': conversion from 'UINT' to 'HWND' of greater size
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(185): warning C4312: 'type cast': conversion from 'LONG' to 'COPYDATASTRUCT *' of greater size
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(223): warning C4312: 'type cast': conversion from 'UINT' to 'HWND' of greater size
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(232): warning C4312: 'type cast': conversion from 'UINT' to 'HWND' of greater size
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(863): warning C4311: 'type cast': pointer truncation from 'HWND' to 'jint'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(863): warning C4302: 'type cast': truncation from 'HWND' to 'jint'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(968): warning C4311: 'type cast': pointer truncation from 'HWND' to 'jint'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(968): warning C4302: 'type cast': truncation from 'HWND' to 'jint'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(1130): warning C4311: 'type cast': pointer truncation from 'HWND' to 'long'
c:/erik/jdk/open/src/jdk.accessibility/windows/native/libwindowsaccessbridge/WinAccessBridge.cpp(1130): warning C4302: 'type cast': truncation from 'HWND' to 'long'