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POStreaming video with Jersey
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  1. POStreaming video with Jersey
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    copied!<p>i'm currently trying to stream a video file over Jersey REST service and get a mysterious exception on returning the response:</p> <pre><code>ERROR WebApplicationImpl - The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointerException at com.sun.jersey.core.util.KeyComparatorHashMap$Entry.hashCode(KeyComparatorHashMap.java:735) at java.util.HashMap.getEntry(HashMap.java:344) at java.util.HashMap.containsKey(HashMap.java:335) at java.util.HashSet.contains(HashSet.java:184) at com.sun.jersey.server.linking.impl.RefProcessor.processLinks(RefProcessor.java:85) at com.sun.jersey.server.linking.impl.RefProcessor.processMember(RefProcessor.java:120) at com.sun.jersey.server.linking.impl.RefProcessor.processLinks(RefProcessor.java:113) at com.sun.jersey.server.linking.impl.RefProcessor.processMember(RefProcessor.java:120) at com.sun.jersey.server.linking.impl.RefProcessor.processLinks(RefProcessor.java:113) at com.sun.jersey.server.linking.impl.RefProcessor.processMember(RefProcessor.java:120) .... </code></pre> <p>The code creating the response looks like follows:</p> <pre><code>return Response.ok( new StreamingOutput( ) { @Override public void write( OutputStream output ) throws WebApplicationException { PrintWriter out = new PrintWriter( output ); out.println( "Foo" ); out.close( ); } }, MediaType.MULTIPART_FORM_DATA ).build( ); </code></pre> <p>(I already deleted additional range headers and stuff). I have several breakpoints in the StreamingOutput.write() method, but none seems to be reached. I have a second rest method returning the video as complete entity which works.</p> <p>So, has anybody an ideo what the exception means and what can i improve? Thanks!</p>
 

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