Search code examples
javacmdqtp

Jar file class getting executed through command prompt but noClassDefFound when run through shell script object of QTP

Jar file class getting executed through command prompt but noClassDefFound when run through shell script object of QTP

I have written a class to fetch data from websphere MQ and saved it as MQTools.Jar runnable.

I try to create a shell scripting object and use Run command Exception in thread "main" java.lang.NoClassDefFoundError: bec/MQ/Tools/MQClass

Set objShell = CreateObject("Wscript.Shell")

If instr(1,objShell.Environment.item("classpath"), strJavaFilePath, 1) > 0 Then 'javafilepath is path to the runnable Jar
Else
    objShell.Environment.item("classpath") = objShell.Environment.item("classpath") & ";"&strJavaFilePath
End If
objShell.Run("cmd /c set classpath="& objShell.Environment.item("classpath"))

intReturn = objShell.Run ("cmd /c java bec.MQ.Tools.MQClass" & " "& strCommandLineArgs, 1, true) 'This line throws noclassdeffound error

I use the same command, copy and paste into a command window, it runs very smoothly without errors. Can anybody please suggest

Solution

  • Got it...

    The issue here is even if I add the classpath runtime in QTP, QTP will not fetch the classpath until you restart QTP. For a new machine, this problem will occur, for an old machine i.e. a machine where this script is already run before, the classpath would already have the required value in variable and won't come across this issue. This issue is similar to one I have posted earlier but yet to find a solution. Refresh system variable using vbscript/QTP

    The problem statement is 'How to reflect changes in system env variables in QTP without having to restart QTP'

    Solution: Might be with some geek but unknown to the world yet.