Commenting to verify the accepted answer as a fix for this issue. In Jaspersoft Studio Repository Explorer, right-click your desired server and select 'Edit JasperReports Server Connection', expand the 'Advanced Settings' tab, and manually resetting my 'Workspace Folder' to the correct location resolved the issue. My report directory structure looks like this: /MyReports/ExampleReportDirectory But was somehow set only to this: ExampleReportDirectory Which appears to be the root cause of the java exception described above.
