MySQL Bugs: #80325: Workbench crashes when attempting to test a connection

Bug #80325	Workbench crashes when attempting to test a connection
Submitted:	9 Feb 2016 23:32	Modified:	1 Jun 2016 1:29
Reporter:	John Krieger	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Workbench	Severity:	S3 (Non-critical)
Version:	6.3.6 Build 511 CE	OS:	Windows (7)
Assigned to:		CPU Architecture:	Any

Description:
Attempting to test a new connection (not created by clicking on new) causes the workbench to crash

How to repeat:
To reproduce

open workbench
database > manage connections
do NOT click on 'New'
enter connection name
enter host and port
enter user name
click on 'Test connection'

=>> "MySQL workbench has stopped working"

Suggested fix:
Workaround is to always create a new connection first

Hello John,

Thank you for the report and repeatable steps.
Verified as described on Win7 with MySQL Workbench 6.3.6 CE (winx64).

Thanks,
Umesh

-- debug info

D:\>cd D:\Workbench\MySQL Workbench 6.3.6 CE (winx64)

D:\Workbench\MySQL Workbench 6.3.6 CE (winx64)>MySQLWorkbench.exe -log-level=debug

D:\Workbench\MySQL Workbench 6.3.6 CE (winx64)>
Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indi
cation that other memory is corrupt.
   at MformsButton.OnClick(EventArgs args)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.Control.WmCommand(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, Int
Ptr lParam)
   at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FP
ushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
   at MySQL.Forms.FormWrapper.run_modal(Form* backend, Button* accept, Button* cancel)
   at mforms.MenuItem.callback(MenuItem* )
   at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FP
ushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at MySQL.GUI.Workbench.Program.Main(String[] Args)

D:\Workbench\MySQL Workbench 6.3.6 CE (winx64)>

Posted by developer:
 
Fixed as of the upcoming MySQL Workbench 6.3.7 release, and here's the changelog entry:

Attempting to test custom connection details (a connection not yet created
by Workbench) caused Workbench to fail and exit. The Test Connection
functionality only functioned for existing or new connections.

Thank you for the bug report.