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https://issues.apache.org/jira/browse/MEECROWAVE-49?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071782#comment-16071782
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Mark Struberg commented on MEECROWAVE-49:
-----------------------------------------
For the record, here is the discussion over at the CXF mailing list
https://lists.apache.org/thread.html/e930674899023447befffb3393f1f219df70f431f1ee9b4bdffe4cdf@%3Cdev.cxf.apache.org%3E
> Returning a binary leads to nullpointers
> ----------------------------------------
>
> Key: MEECROWAVE-49
> URL: https://issues.apache.org/jira/browse/MEECROWAVE-49
> Project: Meecrowave
> Issue Type: Bug
> Affects Versions: 0.3.1
> Reporter: Mark Struberg
> Assignee: Mark Struberg
> Fix For: 0.4.0
>
>
> Currently Meecrowave tries to serve too much mime types via Johnzon. This
> leads to ugly NullPointerExceptions.
> Given the following REST endpoints:
> {code:java}
> @GET
> @Path("test4")
> @Produces(MediaType.APPLICATION_OCTET_STREAM)
> public Response testOctetStream() { ...}
> {code}
> or
> {code:java}
> @GET
> @Path("test5")
> @Produces(MediaType.APPLICATION_OCTET_STREAM)
> public byte[] testOctetStream() { ...}
> {code}
> We currently blow up with a NPE:
> {noformat}
> Caused by: java.lang.ClassCastException: [B cannot be cast to
> [Ljava.lang.Object;
> at org.apache.johnzon.jsonb.JohnsonJsonb.toJson(JohnsonJsonb.java:313)
> ~[johnzon-jsonb-1.1.1.jar:1.1.1]
> at
> org.apache.johnzon.jaxrs.jsonb.jaxrs.JsonbJaxrsProvider.writeTo(JsonbJaxrsProvider.java:152)
> ~[johnzon-jsonb-1.1.1.jar:1.1.1]
> at
> org.apache.cxf.jaxrs.utils.JAXRSUtils.writeMessageBody(JAXRSUtils.java:1386)
> ~[cxf-rt-frontend-jaxrs-3.1.11.jar:3.1.11]
> at
> org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:244)
> ~[cxf-rt-frontend-jaxrs-3.1.11.jar:3.1.11]
> {noformat}
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