Cannot launch license manager

Test the latest 32-bit J4X 15.6.100.2677.

After installation, click Licenses button on the ribbon

Got an error "Unable to run license manager!" with exception

Exception: System.InvalidCastException

Message: Unable to cast object of type 'sun.awt.image.ToolkitImage' to type 'java.awt.image.BufferedImage'.

StackTrace:    at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)

   at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)

   at System.Windows.Forms.Control.Invoke(Delegate method)

   at ikvm.awt.NetToolkit.Invoke[TResult](Func`1 del)

   at ikvm.awt.NetToolkit.createFrame(Frame target)

   at java.awt.Frame.addNotify()

   at java.awt.Window.pack()

   at chemaxon.license.LicenseManagerGUI.createFrame(String arg)

   at chemaxon.license.LicenseManagerGUI.createFrame()

   at ChemAxon.NET.Windows.Forms.Licensing.MarvinLicenseManagerView.†††

†††ŒšŠ()

   at ChemAxon.NET.Windows.Forms.Licensing.MarvinLicenseManagerView..ctor()

   at ChemAxon.JChemExcel.Actions.LicenseAction.Execute(String tag)

I relaunch Excel without opening any existing J4X sheet.  Click on Licenses. Got the same error with a different exception message:

Exception: System.NullReferenceException

Message: Object reference not set to an instance of an object.

StackTrace:    at javax.swing.MultiUIDefaults.getUIError(String )

   at javax.swing.UIDefaults.getUI(JComponent target)

   at javax.swing.UIManager.getUI(JComponent target)

   at javax.swing.JPanel.updateUI()

   at javax.swing.JPanel..ctor(LayoutManager layout, Boolean isDoubleBuffered)

   at javax.swing.JPanel..ctor(Boolean isDoubleBuffered)

   at javax.swing.JPanel..ctor()

   at javax.swing.JRootPane.createGlassPane()

   at javax.swing.JRootPane..ctor()

   at javax.swing.JFrame.createRootPane()

   at javax.swing.JFrame.frameInit()

   at javax.swing.JFrame..ctor()

   at chemaxon.license.LicenseManagerGUI.createFrame(String arg)

   at chemaxon.license.LicenseManagerGUI.createFrame()

   at ChemAxon.NET.Windows.Forms.Licensing.MarvinLicenseManagerView.†††

†††ŒšŠ()

   at ChemAxon.NET.Windows.Forms.Licensing.MarvinLicenseManagerView..ctor()

   at ChemAxon.JChemExcel.Actions.LicenseAction.Execute(String tag)

Hi,

Does this happen after restart as well? Please, describe your environment: Windows, Office version.

As a workaround, please follow these steps:

1. check your C:\Users\current user\chemaxon folder, if it contains any license.cxl file.

2. If yes, please, rename it and copy your current license file into this folder.

3. Make sure, it is named as "license.cxl". JCXL should work now with your current licenses after restart.

4. You can also check our documentation on the website:

https://www.chemaxon.com/jchem4excel/adminguide/licensing.html

Hope this helps, but please let me know if you still experiencing the issue.

Regards,

Anna

Hi,

The fix is available in latest release (15.6.1500), which can be downloaded from here:

JChem for Excel installers:

https://www.chemaxon.com/download/jchem-for-office/#jc4xl

JChem for Office installers:

https://www.chemaxon.com/download/jchem-for-office/#jc4o

Please, let me know, if you had a chance to test it.

Regards,

Anna