SP-422 / BIS-280 : Error when performing batch import of material

.../client/application/ui/AbstractBatchRegistrationForm.java

...emsx/cisd/openbis/generic/server/AbstractASyncAction.java

...eneric/shared/basic/dto/AsyncBatchRegistrationResult.java

...ic/shared/basic/dto/MaterialBatchUpdateResultMessage.java

...ugin/generic/client/web/client/IGenericClientService.java

...generic/client/web/client/IGenericClientServiceAsync.java

...eric/client/web/client/application/GeneralImportForm.java

...ation/material/AbstractMaterialBatchRegistrationForm.java

...cation/material/GenericMaterialBatchRegistrationForm.java

.../application/material/GenericMaterialBatchUpdateForm.java

...lugin/generic/client/web/server/GenericClientService.java

...msx/cisd/openbis/plugin/generic/server/GenericServer.java

...sd/openbis/plugin/generic/server/GenericServerLogger.java

...sx/cisd/openbis/plugin/generic/shared/IGenericServer.java

...n/generic/client/web/server/GenericClientServiceTest.java

...is/systemtest/BatchMaterialRegistrationAndUpdateTest.java