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https://issues.apache.org/jira/browse/CAMEL-9874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15261701#comment-15261701
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Claus Ibsen commented on CAMEL-9874:
------------------------------------
Thanks for reporting, indeed there is that NPE and the content-type do not make
so much sense to be only that type. I am removing that restriction, and then
your test-case works now.
> Camel Jetty consumer endpoint incorrectly handles multipart/form-data
> ---------------------------------------------------------------------
>
> Key: CAMEL-9874
> URL: https://issues.apache.org/jira/browse/CAMEL-9874
> Project: Camel
> Issue Type: Bug
> Components: camel-jetty
> Affects Versions: 2.17.0
> Reporter: Robert Požarickij
> Assignee: Claus Ibsen
> Fix For: 2.17.1, 2.18.0
>
>
> The problem lies in the way Camel Jetty (camel-jetty9 to be precise) handles
> multipart/form-data requets.
> The issue consists of two parts:
> * NPE is thrown if no Content-Type is specified in a part;
> * Only application/octet-stream part Content-Type is supported (not sure
> whether it actually should be relevant)
> Location in code:
> https://github.com/apache/camel/blob/c134e5a6e104c60ddcd198341718a37f0a4401ba/components/camel-jetty9/src/main/java/org/apache/camel/component/jetty9/AttachmentHttpBinding.java#L53
> To reproduce:
> {code}
> from("jetty:http://0.0.0.0:8028";).process((e) -> {});
> {code}
> The call (generated from postman)
> {code}
> OkHttpClient client = new OkHttpClient();
> MediaType mediaType = MediaType.parse("multipart/form-data;
> boundary=---011000010111000001101001");
> RequestBody body = RequestBody.create(mediaType,
> "-----011000010111000001101001\r\nContent-Disposition: form-data;
> name=\"test\"\r\n\r\ntest\r\n-----011000010111000001101001--");
> Request request = new Request.Builder()
> .url("http://localhost:8028/";)
> .post(body)
> .addHeader("content-type", "multipart/form-data;
> boundary=---011000010111000001101001")
> .addHeader("cache-control", "no-cache")
> .addHeader("postman-token", "a9fd95b6-04b9-ea7a-687e-ff828ea00774")
> .build();
> Response response = client.newCall(request).execute();
> {code}
> Exception:
> {code}
> org.apache.camel.RuntimeCamelException: Cannot populate attachments
> at
> org.apache.camel.component.jetty9.AttachmentHttpBinding.populateAttachments(AttachmentHttpBinding.java:56)
> ~[camel-jetty-2.17.0.jar!/:2.17.0]
> at
> org.apache.camel.http.common.DefaultHttpBinding.readRequest(DefaultHttpBinding.java:176)
> ~[camel-http-common-2.17.0.jar!/:2.17.0]
> at
> org.apache.camel.http.common.HttpMessage.<init>(HttpMessage.java:52)
> ~[camel-http-common-2.17.0.jar!/:2.17.0]
> at
> org.apache.camel.component.jetty.CamelContinuationServlet.service(CamelContinuationServlet.java:161)
> ~[camel-jetty-common-2.17.0.jar!/:2.17.0]
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> ~[javax.servlet-api-3.1.0.jar!/:3.1.0]
> at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
> ~[jetty-servlet-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
> ~[jetty-servlet-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.servlets.MultiPartFilter.doFilter(MultiPartFilter.java:200)
> ~[jetty-servlets-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.apache.camel.component.jetty.CamelFilterWrapper.doFilter(CamelFilterWrapper.java:43)
> ~[camel-jetty-common-2.17.0.jar!/:2.17.0]
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
> ~[jetty-servlet-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
> [jetty-servlet-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
> [jetty-servlet-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at org.eclipse.jetty.server.Server.handle(Server.java:499)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
> [jetty-server-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
> [jetty-io-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> [jetty-util-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> [jetty-util-9.2.15.v20160210.jar!/:9.2.15.v20160210]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_73]
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.camel.component.jetty9.AttachmentHttpBinding.populateAttachments(AttachmentHttpBinding.java:48)
> ~[camel-jetty-2.17.0.jar!/:2.17.0]
> ... 22 common frames omitted
> {code}
> SO:
> https://stackoverflow.com/questions/36656340/how-to-upload-a-file-via-multipart-form-data-file-upload-to-camel-jetty-2-17-0
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