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Execution stucks when creating a XSSFWorkbook (Apache POI)
I am writing a software which creates Excel files using the Apache POI libraries, the last stable version (2.14 - https://poi.apache.org/download.html)
I am using JDeveloper 11g, since I have to deploy on JCS SaaS Extension and Oracle suggested to use this version. This JDeveloper includes by default JDK 1.6.0_24 and weblogic 10.3.5
You can see an example code which creates a Excel file at this address: Apache POI – Spreadsheets
Our problem is that when the code is running on the JDeveloper integrated WebLogic, the execution arrives to this line of code (the first line of code in the example code above)
XSSFWorkbook workbook = new XSSFWorkbook();
and it hangs here.
No exceptions are triggered, it simply hangs there and it does not proceed.
Is there a way to know what is going wrong?