MySQL Bugs: #80825: Workbench crash on Manage Connections screen

Bug #80825	Workbench crash on Manage Connections screen
Submitted:	22 Mar 2016 14:44	Modified:	22 Mar 2016 16:09
Reporter:	Nuno Henriques	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Workbench	Severity:	S2 (Serious)
Version:	6.3.6 winx64	OS:	Windows (Windows 10, 64bits)
Assigned to:		CPU Architecture:	Any
Tags:	Workbench Crash Manage Connections

Description:
Workbench freshly installed.
Windows 10, 64 bits.
Never had any version of Workbench installed.
Inside "Manage Server Connection" dialog, and without selecting any "MySQL Connection" on the left panel, WB crashes if user clicks on "Test Connection" or "Store in Vault...".

How to repeat:
1-Install workbench
2-Menu: Database / Manage Connections...
3-Just click on "Test Connection" or "Store in Vault..."
End-Workbench disappears completely, or Crash dialog is presented.

Suggested fix:
Workaround (before code gets fixed):
Before setting any connection parameters, click on NEW (bottom left) button to create a new Connection.
Only after that, set and test any needed connection parameters, in particular Vault/password.
---
Even with connections already created, the user MUST select any of them on the left panel EACH TIME it opens the "Manage Server Connections" (or creating a new one with the NEW button) before setting or testing another connection, to avoid the crash.

If the user forgets this, all the environment/windows/queries goes down, probably losing some work.

Just clicking test connection. 	

[Managed to Native Transition]	
>	mforms.wr.dll!MformsButton.OnClick(System.EventArgs args)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Button.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam)	Unknown
 	[Native to Managed Transition]	
 	[Managed to Native Transition]	
 	System.Windows.Forms.dll!System.Windows.Forms.Control.SendMessage(int msg, System.IntPtr wparam, System.IntPtr lparam)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.ReflectMessageInternal(System.IntPtr hWnd, ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WmCommand(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam)	Unknown
 	[Native to Managed Transition]	
 	[Managed to Native Transition]	
 	System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.DefWndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WmMouseUp(ref System.Windows.Forms.Message m, System.Windows.Forms.MouseButtons button, int clicks)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ButtonBase.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Button.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam)	Unknown
 	[Native to Managed Transition]	
 	[Managed to Native Transition]	
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(System.IntPtr dwComponentID, int reason, int pvLoopData)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason, System.Windows.Forms.ApplicationContext context)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Form.ShowDialog(System.Windows.Forms.IWin32Window owner)	Unknown
 	mforms.wr.dll!<Unknown function>	Unknown
 	[Native to Managed Transition]	
 	[Managed to Native Transition]	
 	mforms.wr.dll!MenuItemEventTarget.MenuItemClick(object sender, System.EventArgs e)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripItem.RaiseEvent(object key, System.EventArgs e)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripMenuItem.OnClick(System.EventArgs e)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripItem.HandleClick(System.EventArgs e)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripItem.HandleMouseUp(System.Windows.Forms.MouseEventArgs e)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStrip.OnMouseUp(System.Windows.Forms.MouseEventArgs mea)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripDropDown.OnMouseUp(System.Windows.Forms.MouseEventArgs mea)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WmMouseUp(ref System.Windows.Forms.Message m, System.Windows.Forms.MouseButtons button, int clicks)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStrip.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.ToolStripDropDown.WndProc(ref System.Windows.Forms.Message m)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg, System.IntPtr wparam, System.IntPtr lparam)	Unknown
 	[Native to Managed Transition]	
 	[Managed to Native Transition]	
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(System.IntPtr dwComponentID, int reason, int pvLoopData)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason, System.Windows.Forms.ApplicationContext context)	Unknown
 	System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context)	Unknown
 	MySQLWorkbench.exe!MySQL.GUI.Workbench.Program.Main(string[] Args)	Unknown

Thank you for the bug report. Duplicate/related to http://bugs.mysql.com/bug.php?id=80359 and others there reported.

Exactly same problem here.
Win 10 64-bit fresh install
Workbench version 6.3.10