protected void copyValue(JRFillSubreportReturnValue returnValue) { try { JRFillVariable variable = filler.getVariable(returnValue.getToVariable()); Object value = subreportFiller.getVariableValue(returnValue.getSubreportVariable()); Object newValue = returnValue .getIncrementer() .increment(variable, value, AbstractValueProvider.getCurrentValueProvider()); variable.setOldValue(newValue); variable.setValue(newValue); variable.setIncrementedValue(newValue); } catch (JRException e) { throw new JRRuntimeException(e); } }