[#3816] - Ad hoc - The server has encountered an error when export

JasperServer 5.2 settings => i switch 'on' the setting called "Display Null as Zero".
The ad hoc editor display nulls as 0,00 and when i want to export as an excel, the server run and display the error below:

The server has encountered an error. Please excuse the inconvenience.

Error Trace

com.jaspersoft.jasperserver.api.JSException: Error filling report at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$FillResultListener.reportFillError(EngineServiceImpl.java:1231) at net.sf.jasperreports.engine.fill.BaseFillHandle.notifyError(BaseFillHandle.java:211) at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFiller.run(BaseFillHandle.java:135) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$SynchronousExecutor.execute(EngineServiceImpl.java:878) at net.sf.jasperreports.engine.fill.BaseFillHandle.startFill(BaseFillHandle.java:165) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$AsynchronousReportFiller.fillReport(EngineServiceImpl.java:834) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:1696) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runWithDataSource(EngineServiceImpl.java:1055) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runReport(EngineServiceImpl.java:989) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportRunnable.run(EngineServiceImpl.java:900) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: net.sf.jasperreports.engine.JRException: DataSetIterator.getObject(Budget_rate_turnover_m0) returned a class java.lang.Integer, expecting a java.math.BigDecimal at com.jaspersoft.commons.datarator.jr.DataratorJRDataSource.getFieldValue(DataratorJRDataSource.java:81) at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:1331) at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1232) at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1208) at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1577) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:149) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:932) at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFiller.run(BaseFillHandle.java:120) ... 10 more

Error Message

net.sf.jasperreports.engine.JRException: DataSetIterator.getObject(Budget_rate_turnover_m0) returned a class java.lang.Integer, expecting a java.math.BigDecimal

Error Trace

net.sf.jasperreports.engine.JRException: DataSetIterator.getObject(Budget_rate_turnover_m0) returned a class java.lang.Integer, expecting a java.math.BigDecimal at com.jaspersoft.commons.datarator.jr.DataratorJRDataSource.getFieldValue(DataratorJRDataSource.java:81) at net.sf.jasperreports.engine.fill.JRFillDataset.setOldValues(JRFillDataset.java:1331) at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1232) at net.sf.jasperreports.engine.fill.JRFillDataset.next(JRFillDataset.java:1208) at net.sf.jasperreports.engine.fill.JRBaseFiller.next(JRBaseFiller.java:1577) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:149) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:932) at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFiller.run(BaseFillHandle.java:120) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$SynchronousExecutor.execute(EngineServiceImpl.java:878) at net.sf.jasperreports.engine.fill.BaseFillHandle.startFill(BaseFillHandle.java:165) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$AsynchronousReportFiller.fillReport(EngineServiceImpl.java:834) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:1696) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runWithDataSource(EngineServiceImpl.java:1055) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runReport(EngineServiceImpl.java:989) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportRunnable.run(EngineServiceImpl.java:900) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)

But if i switch 'off' the setting called "Display Null as Zero" the export is ok.

Thanks in advance.