I am trying to play a video from azure blob storage. While playing it with wpf media element it is giving Exception:
Exception thrown: 'System.NullReferenceException' in PresentationCore.dll An unhandled
exception of type 'System.NullReferenceException' occurred in PresentationCore.dll Object
reference not set to an instance of an object.
because url is Https.
I check it with http its working fine.
Code
<MediaElement Source="https://************MEDIA FROM API******" LoadedBehavior="Manual" x:Name="mePlayer" Visibility="Hidden">
<MediaElement.ContextMenu>
<ContextMenu />
</MediaElement.ContextMenu>
<MediaElement.DataContext>
<Properties:Resources/>
</MediaElement.DataContext>
</MediaElement>
when trying to play from code behind
mePlayer.Play();
it is giving Exception
Related
I am using gateway based authentication in spring security. A user is authenticated from the database. Through zuul, the authenticated user is directed to the UI microservice. A successfully authenticates user at the admin gateway service when routed to the UI microservice gives the following exception.
There was an unexpected error (type=Internal Server Error, status=500).
Cannot deserialize; nested exception is org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is org.springframework.core.NestedIOException: Failed to deserialize object type; nested exception is java.lang.ClassNotFoundException: mysecurity.CustomUserDetails
Look at your exception:
java.lang.ClassNotFoundException: mysecurity.CustomUserDetails
Just make sure that you have mysecurity.CustomUserDetails class in your classpath
I am using signalR with signalr-hub and a windows authentication ASP.net Web Api project.
I have created two hubs in my project that both subscribe to the stateChanged and errorHandler listeners. Sometimes, the page loads without issue, but other times a 403 connection issue is thrown. The error message is as follows:
Error: No transport could be initialized successfully. Try specifying a different transport or none at all for auto initialization.
This is sometimes followed by the error message:
Error: Error during start request. Stopping the connection.
responseText: "Unrecognized user identity. The user identity cannot change during an active SignalR connection."
I believe that the error is caused by a race condition with windows authentication. That when the browser is first loaded the connection is anonymous by default, then signalR starts to connect, then windows auth returns the actual user, then SignalR notes that the connection has changed mid request and throws an error.
I have so far looked in trying to delay the connection to signalR with a $timeout to wait for Windows Auth first, but this only seemed to create more frequent errors.
I will look to supply more information with this question soon, in the meantime, I would appreciate any general ideas in how to solve\ get around\ debug this issue.
The solution is to disable anonymous authentication. Otherwise if SignalR is connecting and authentication transitions from anonymous to user authentication whilst the signalr request is processing, then an error is thrown.
Anonymous authentication can be disabled in web.config as follows:
<system.web>
<authentication mode="Windows" />
<authorization>
<deny users="?" />
</authorization>
...
I found this answer here: answer
File upload mechanism is added to my existing application which is deployed to WebSphere 7. I use commons-fileupload-1.2.2.jar for the file upload. During testing, I encountered below exception:
[5/2/13 18:00:00:773 CST] 0000001b SystemOut O 18:00:00,773 INFO AccountsController:156 - Session is valid.
[5/2/13 18:04:42:299 CST] 0000001e servlet E com.ibm.ws.webcontainer.servlet.ServletWrapper service SRVE0068E: Uncaught exception created in one of the service methods of the servlet dispatcher in application SunLinkOnline_ST. Exception created : org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Async operation timed out
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:583)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:738)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1597)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:131)
at ph.com.sunlife.sunlink.filter.MFSanitizerFilter.doFilter(MFSanitizerFilter.java:38)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:91)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:864)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:445)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:504)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:301)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:275)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1563)
Caused by: org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Async operation timed out
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:172)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:149)
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1006)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:851)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
... 34 more
Caused by: org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Async operation timed out
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:371)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:165)
... 39 more
Caused by: java.net.SocketTimeoutException: Async operation timed out
Could someone please share some insights what is causing above exception. Though the exception may point to server long response or due to handling of timeout in server but is there a way to resolve this? Like handling of exception in code side? Your help is much appreciated. Please let me know if I need to include other information to resolve this exceptions. Thanks!
It seems like file upload time out need to be increased. I came across same situation once but what i needed was to upload my application to websphere via admin console. Since my application is a large one i have to increase time out for admin console.
Since your scenario is for file upload in application hosted in websphere you have to change the time out of different queue.
Please find following URLs
IBM Websphere timeout custom properties
IBM changing time out in HTTP queues
what i did in my scenario
when im trying to send a mail using java mail api in my web application , I'm getting this exception.
java.lang.SecurityException: Access to default session denied
the inputs are fron an html page. then it goes to a servlet which eventually calls a java class where the mail logic is written
This error text is associated with a call to Session.getDefaultInstance(props, authenticator) where the default instance already has a different authenticator set.
It should work better if you call Session.getInstance(props, authenticator) instead of Session.getDefaultInstance(props, authenticator) in your code.
I've got the same error, when I launch 2 tests in Webdriver. In secound test i've got "java.lang.SecurityException: Access to default session denied".
When I used method Session.getInstance instead Session.getDefaultInstance in every test, errors disappeared.
I created one solution and then added one project which contains all WCF services. Then i added it's reference to my Silverlight project in the same solution. Now when i try to debug i get one message box saying This Silverlight project you are about to debug is consuming web services. Calls to the web service will fail unless the project is executed in the context of the web which contains the web service. and still if i run it i get this error :-
An error occurred while trying to make a request to URI 'http://localhost:50318/CustomersService.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details.
This is the detailed exception :-
{System.ServiceModel.CommunicationException: An error occurred while trying to make a request to URI 'http://localhost:50318/CustomersService.svc'. This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent. This error may also be caused by using internal types in the web service proxy without using the InternalsVisibleToAttribute attribute. Please see the inner exception for more details. ---> System.Security.SecurityException ---> System.Security.SecurityException: Security error.
at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
at System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)
--- End of inner exception stack trace ---
at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
--- End of inner exception stack trace ---
at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
at MVVMDemo.CustomersServiceRef.CustomersServiceClient.CustomersServiceClientChannel.EndGetCustomers(IAsyncResult result)
at MVVMDemo.CustomersServiceRef.CustomersServiceClient.MVVMDemo.CustomersServiceRef.ICustomersService.EndGetCustomers(IAsyncResult result)
at MVVMDemo.CustomersServiceRef.CustomersServiceClient.OnEndGetCustomers(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)}
What should i do?
Thanks in advance:)
If your page hosting the silverlight control and the webservice you are trying to connect are in different domains(in ur case it looks like they are different projects) you will need to add the clientaccesspolicy.xml file to your website.
<?xml version="1.0" encoding="utf-8"?>
<access-policy>
<cross-domain-access>
<policy>
<allow-from http-request-headers="SOAPAction">
<domain uri="*"/>
</allow-from>
<grant-to>
<resource path="/" include-subpaths="true"/>
</grant-to>
</policy>
</cross-domain-access>
</access-policy>
Check out this link for more details