java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

Export Collection with process flows fails. MDL1256

This exception has no message.

java.lang.NullPointerException: 	at oracle.wh.service.impl.metadataloader.WBExportProcessFlow.sortProcessContexts(WBExportProcessFlow.java:247)	at oracle.wh.service.impl.metadataloader.WBExportProcessFlow.exportProcesses(WBExportProcessFlow.java:316)	at oracle.wh.service.impl.metadataloader.WBExportProcessFlow.exportProcessPkgList(WBExportProcessFlow.java:191)	at oracle.wh.service.impl.metadataloader.WBExportProcessFlow.exportProcessPackages(WBExportProcessFlow.java:125)	at oracle.wh.service.impl.metadataloader.WBExportProcessFlow.exportModuleProcessFlows(WBExportProcessFlow.java:859)	at oracle.wh.service.impl.metadataloader.WBExportApplication.exportProcessFlow(WBExportApplication.java:1319)	at oracle.wh.service.impl.metadataloader.WBExport.exportProjectProcessFlow(WBExport.java:1067)	at oracle.wh.service.impl.metadataloader.WBExport.exportProjectAndFCOs(WBExport.java:1695)	at oracle.wh.service.impl.metadataloader.WBExport.exportSingleProject(WBExport.java:1655)	at oracle.wh.service.impl.metadataloader.WBExport.process(WBExport.java:2049)	at oracle.wh.ui.metadataloader.WBMetaDataExportTransaction.run(WBMetaDataExportTransaction.java:1112)