Java application built using cr4e(clipse) fails to work in some Windows OSs

[Former Member]

I created a variation of the SampleViewerFrameClient, leveraging the opportunity to automatically refresh (refreshReport()) a Crystal report.  This worked in Windows 2007, but fails to work in Windows 2008 and 2003 (in a couple of ways).

One theWindows 8 system with Crystal Reports installed, the viewer frame deploys displaying the report selection window, but after selecting and opening a Crystal report, it presents the following error window:

Problem Showing Report

Error Code: -2147467259

This Windows 8 system happens to have both Crystal Reports 2013 and Crystal Reports for Enterprise 4 installed.  Java version JDK 7u55.

On the Windows 2003 system,  without any Crystal Reports installation, running Java JRE 1.6, it fails with an exception:

unsupported class version error (major.minor 51.0): SampleViewerFrameClient.

It runs fine from eclipse on the Windows 2008 system.

Thanks!

[Former Member]

Fixed the unsupported version error (by compiling with appropriate java compiler in Eclipse), and the report launch error in the viewer was resolved as well.