Error: Service cannot be cast to builders.dsl.spreadsheet.builder.api.WorkbookDefinition when deployed to tomcat 9

[ddelponte]

I'm exporting data as an excel document. Everything works as expected when run locally, but is failing with the following error message when deployed to tomcat:

java.lang.ClassCastException: my.cool.ExportService cannot be cast to builders.dsl.spreadsheet.builder.api.WorkbookDefinition

        at my.cool.ExportService$__tt__createExcel_closure3.doCall(my.cool.ExportService.groovy:74)

The code with the error looks like:

class ExcelExportService {
    public static final String EXCEL_FILE_SUFIX = ".xlsx"
    public static final String EXCEL_FILE_PREFIX = "stuff"

    def exportExcel(OutputStream outs, List<Stuff> stuffList) {
        File file = File.createTempFile(EXCEL_FILE_PREFIX, EXCEL_FILE_SUFIX)
        PoiSpreadsheetBuilder.create(outs).build {
            apply MyExcelStylesheet
....

[musketyr]

Hello. Thank you for reporting. Can you give me more details?

• is the code compiled statically using @CompileStatic
• what version you are using?

[musketyr]

BTW thanks for the reminder that version 2.0.0 hasn't been released officially yet.

Can you try to upgrade to 2.0.0 and tell me if there is any change?