some files can't be downloaded

[kosarko]

Not sure what the pattern is, but the browser shows just a whitelabel 500 error or if using curl

{"timestamp":"2023-10-27T15:38:02.929+00:00","status":500,"error":"Internal Server Error","message":"An exception has occurred","path":"/repository/api/core/bitstreams/handle/11234/1-3185/PDT-C-1.0.zip"}

the backend log shows:

2023-10-27 17:27:07,244 ERROR unknown d721871a-b70f-4670-aa88-84cd4d9cca47 org.dspace.app.rest.exception.DSpaceApiExceptionControllerAdvice @ An exception has occurred (status:500)
java.lang.RuntimeException: java.lang.RuntimeException: Bitstream Extensions cannot be empty for downloading/previewing bitstreams.
        at org.dspace.app.rest.MetadataBitstreamController.downloadSingleFile(MetadataBitstreamController.java:143) ~[classes/:7.5]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.20.jar:5.3.20]
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.20.jar:5.3.20]


2023-10-27 17:29:55,330 DEBUG unknown unknown org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping @ Mapped to org.dspace.app.rest.MetadataBitstreamController#downloadSingleFile(String, String, String, HttpServletRequest, HttpServletResponse)                      2023-10-27 17:29:55,331 INFO  unknown 2ac1ab42-e8d8-4bb2-ad76-1ade95d2b9c0 org.dspace.app.rest.utils.DSpaceAPIRequestLoggingFilter @ Before request [GET /repository/api/core/bitstreams/handle/11234/1-3185/PDT-C-1.0.zip] originated from https://ufal-point-dev.ufal.hide.ms.mff.cuni.cz/items/90ba1c56-389d-4c88-b975-09ed25a2b31d
2023-10-27 17:29:55,331 DEBUG unknown 2ac1ab42-e8d8-4bb2-ad76-1ade95d2b9c0 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping @ Mapped to org.dspace.app.rest.MetadataBitstreamController#downloadSingleFile(String, String, String, HttpServletRequest, HttpServletResponse)                                                                                                                                            2023-10-27 17:29:55,350 ERROR unknown 2ac1ab42-e8d8-4bb2-ad76-1ade95d2b9c0 org.dspace.app.rest.MetadataBitstreamController @ Bitstream Extensions cannot be empty for downloading/previewing bitstreams.                                                                                              2023-10-27 17:29:55,351 DEBUG unknown 2ac1ab42-e8d8-4bb2-ad76-1ade95d2b9c0 org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver @ Using @ExceptionHandler org.dspace.app.rest.exception.DSpaceApiExceptionControllerAdvice#handleGenericException(HttpServletRequest, HttpServletResponse, Exception)
2023-10-27 17:29:55,351 ERROR unknown 2ac1ab42-e8d8-4bb2-ad76-1ade95d2b9c0 org.dspace.app.rest.exception.DSpaceApiExceptionControllerAdvice @ An exception has occurred (status:500)
java.lang.RuntimeException: java.lang.RuntimeException: Bitstream Extensions cannot be empty for downloading/previewing bitstreams.
        at org.dspace.app.rest.MetadataBitstreamController.downloadSingleFile(MetadataBitstreamController.java:143) ~[classes/:7.5]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]                                                                     at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]

[milanmajchrak]

Fixed here: https://github.com/dataquest-dev/DSpace/issues/453