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  • Apache Mina Server Restart java.net.BindException: Address already in use

    - by Kosaki
    Hello, I have a rather annoying problem in my server application. I bind Apache Mina with the following code: acceptor.bind(new InetSocketAddress(PORT)); Where acceptor is an NioSocketAcceptor. Over a HTTP interface I can shutdown the server so I can restart it. Server.ioAcceptor.unbind(new InetSocketAddress(Server.PORT)); for(IoSession session: Server.ioAcceptor.getManagedSessions().values()){ if(session.isConnected() && !session.isClosing()){ session.close(false); } } Server.ioAcceptor.dispose(); Main.transport.stop(); Logger.getRootLogger().warn("System going down. Request from "+context.getRemoteAddress()); System.exit(10); This is the code I use to stop the Mina server. However if I try to start the server again in the next couple of minutes. (Somewhere between 5 minutes and 15 minutes) I get the following exception on start up: java.net.BindException: Address already in use I also tried a simple ioAcceptor.unbind() but there was no difference. The server runs on Centos 5 with OpenJDK. Apache Mina version is 2.0 RC1. Thank you in advance for any ideas on how to resolve this.

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  • How to call a .NET Webservice from Android using KSOAP2?

    - by Rajapandian
    Hai to All,I have a problem while calling the webservice,i have a .NET web service in the server and i am using KSOAP2(ksoap2-j2se-full-2.1.2) in android.While running the program i got an runtime Exception like "org.ksoap2.serialization.SoapPrimitive". I dont know what to do.Here is my code. package projects.ksoap2sample; import org.ksoap2.SoapEnvelope; import org.ksoap2.serialization.SoapObject; import org.ksoap2.serialization.SoapSerializationEnvelope; import org.ksoap2.transport.HttpTransportSE; import android.app.*; import android.os.*; import android.widget.TextView; public class ksoap2sample extends Activity { /** Called when the activity is first created. */ private static final String SOAP_ACTION = "http://tempuri.org/HelloWorld"; private static final String METHOD_NAME = "HelloWorld"; private static final String NAMESPACE = "http://tempuri.org/"; private static final String URL = "http://192.168.1.19/TestWeb/WebService.asmx"; TextView tv; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); tv=(TextView)findViewById(R.id.text1); try { SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); //request.addProperty("prop1", "myprop"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet=true; envelope.setOutputSoapObject(request); HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); androidHttpTransport.call(SOAP_ACTION, envelope); Object result = (Object)envelope.getResponse(); String[] results = (String[]) result; tv.setText( ""+results[0]); } catch (Exception e) { tv.setText(e.getMessage()); } } } May be my code is wrong.please help me. Regards Rajapandian

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  • Has anyone installed NServiceBus onto a Microsoft clustered server?

    - by David
    I am trying to install NServiceBus onto a clustered win2k3 host. The configuration utility provided (runner.exe) throw some errors that I did not catch, and it now runs correctly. When running NServiceBus.Host.exe i am get this error repeatedly: System.Transactions.TransactionAbortedException: The transaction has aborted. --- System.Transactions.TransactionManagerCommunicationException: Communication with the underlying transaction manager has failed. --- System.Runtime.InteropServices.COMException (0x8004D01B): The Transaction Manager is not available. (Exception from HRESULT: 0x8004D01B) at System.Transactions.Oletx.IDtcProxyShimFactory.ConnectToProxy(String nodeName, Guid resourceManagerIdentifier, IntPtr managedIdentifier, Boolean& nodeNameMatches, UInt32& whereaboutsSize, CoTaskMemHandle& whereaboutsBuffer, IResourceManagerShim& resourceManagerShim) at System.Transactions.Oletx.DtcTransactionManager.Initialize() --- End of inner exception stack trace --- at System.Transactions.Oletx.OletxTransactionManager.ProxyException(COMException comException) at System.Transactions.Oletx.DtcTransactionManager.Initialize() at System.Transactions.Oletx.DtcTransactionManager.get_ProxyShimFactory() at System.Transactions.Oletx.OletxTransactionManager.CreateTransaction(TransactionOptions properties) at System.Transactions.TransactionStatePromoted.EnterState(InternalTransaction tx) --- End of inner exception stack trace --- at System.Transactions.TransactionStateAborted.CheckForFinishedTransaction(InternalTransaction tx) at System.Transactions.EnlistableStates.Promote(InternalTransaction tx) at System.Transactions.Transaction.Promote() at System.Transactions.TransactionInterop.ConvertToOletxTransaction(Transaction transaction) at System.Transactions.TransactionInterop.GetDtcTransaction(Transaction transaction) at System.Messaging.MessageQueue.StaleSafeReceiveMessage(UInt32 timeout, Int32 action, MQPROPS properties, NativeOverlapped* overlapped, ReceiveCallback receiveCallback, CursorHandle cursorHandle, IntPtr transaction) at System.Messaging.MessageQueue.ReceiveCurrent(TimeSpan timeout, Int32 action, CursorHandle cursor, MessagePropertyFilter filter, MessageQueueTransaction internalTransaction, MessageQueueTransactionType transactionType) at System.Messaging.MessageQueue.Receive(TimeSpan timeout, MessageQueueTransactionType transactionType) at NServiceBus.Unicast.Transport.Msmq.MsmqTransport.ReceiveMessageFromQueueAfterPeekWasSuccessful() in d:\BuildAgent-02\work\672d81652eaca4e1\src\impl\unicast\NServiceBus.Unicast.Msmq\MsmqTransport.cs:line 551 Has anyone successfully put NServiceBus onto a clustered server, if so, how did you get it working?

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  • How to best transfer large payloads of data using wsHttp with WCF with message security

    - by jpierson
    I have a case where I need to transfer large amounts of serialized object graphs (via NetDataContractSerializer) using WCF using wsHttp. I'm using message security and would like to continue to do so. Using this setup I would like to transfer serialized object graph which can sometimes approach around 300MB or so but when I try to do so I've started seeing a exception of type System.InsufficientMemoryException appear. After a little research it appears that by default in WCF that a result to a service call is contained within a single message by default which contains the serialized data and this data is buffered by default on the server until the whole message is completely written. Thus the memory exception is being caused by the fact that the server is running out of memory resources that it is allowed to allocate because that buffer is full. The two main recommendations that I've come across are to use streaming or chunking to solve this problem however it is not clear to me what that involves and whether either solution is possible with my current setup (wsHttp/NetDataContractSerializer/Message Security). So far I understand that to use streaming message security would not work because message encryption and decryption need to work on the whole set of data and not a partial message. Chunking however sounds like it might be possible however it is not clear to me how it would be done with the other constraints that I've listed. If anybody could offer some guidance on what solutions are available and how to go about implementing it I would greatly appreciate it. Related resources: Chunking Channel How to: Enable Streaming Large attachments over WCF Custom Message Encoder Another spotting of InsufficientMemoryException I'm also interested in any type of compression that could be done on this data but it looks like I would probably be best off doing this at the transport level once I can transition into .NET 4.0 so that the client will automatically support the gzip headers if I understand this properly.

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  • sIFR 3 HTML text does not display, .sIFR-alternate causing problem

    - by Jeremy Schultz
    It seems my sIFR 3 text does not show HTML text if the Flash text is not displayed. Here's one of the pages in question: http://www.jeremyschultz.com/client/orchardplace/website/beta/volunteer/ One person has reported not seeing anything when viewing this page, and I can recreate it by removing the Flash text with Firebug. Testing with Firebug also suggests the .sIFR-alternate class is what's causing this: when I remove it, the text shows up, and it disappears again when I restore it. I copied the original CSS and also tried applying a few new CSS rules to .sIFR-alternate but nothing has solved it. What do you think? Jeremy [email protected]

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  • Isapi Rewrite : Remove filename from URL

    - by namtax
    Hi there Im am trying to use the isapi rewrite tool on my web domain to write some basic rules, but am getting a bit confused. My base url is http://forevr-dev.co.uk/musicexplained/index.cfm and every page on the site follows from this base url. For example http://forevr-dev.co.uk/musicexplained/index.cfm/artist/blondie would be the artist page for blondie.. What I am looking for, is a rewrite rule, that would remove the index.cfm from the url, instead leaving http://forevr-dev.co.uk/musicexplained/artist/blondie. I have put the httpd.ini file in my musicexplained folder, under the root of my forevr-dev.co.uk domain, and I am using the following code below, which I used from the coldbox coldfusion framework application examples. RewriteEngine On RepeatLimit 0 RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.cfm/%{REQUEST_URI} [QSA,L] However, when I now go to the new pretty url, I am recieving an error message saying that the page cannot be found, alongside a 404 message. Any ideas? Thanks

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  • PHP Flush: How Often and Best Practises

    - by Cory Dee
    I just finished reading this post: http://developer.yahoo.com/performance/rules.html#flush and have already implemented a flush after the top portion of my page loads (head, css, top banner/search/nav). Is there any performance hit in flushing? Is there such a thing as doing it too often? What are the best practices? If I am going to hit an external API for data, would it make sense to flush before hand so that the user isn't waiting on that data to come back, and can at least get some data before hand? Thanks to everyone in advance.

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  • WCF Mono - BasicHttpBinding with SSL

    - by TheNextman
    I'm trying to port an existing WCF client application to run on Linux under Mono. Right now I'm testing everything out, figuring out what works on Mono and what doesn't. The client makes a super simple call over basicHttpBinding. It works great, until I enable SSL (that is, specify BasicHttpSecurityMode.Transport in the binding). Running on .NET in Windows, it works great Running on Mono on Ubuntu 9.10 / Mono 2.6 I get the following error: Exception in async operation: System.Net.WebException: Error getting response stream (Write: The authentication or decryption has failed.): SendFailure --- System.IO.IOException: The authentication or decryption has failed. --- Mono.Security.Protocol.Tls.TlsException: Invalid certificate received from server. Error code: 0xffffffff800b010a I've read the Mono security FAQ here: http://www.mono-project.com/FAQ:_Security; however the SSL certificate on the server is from a root CA (a purchased certificate) - issued by Equifax Secure Certificate Authority. I ran the TlsTest tool on the Ubuntu install against the .svc URL and there are no problems/errors. Also I can hit the service fine in Firefox (no security warnings). What am I missing? Thanks in advance, Richard

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  • IIS7 URL Rewrite with dynamic subdomains.

    - by arri.me
    My goal is to implement the following scheme using the subdomain and path as attributes: Use a wildcard DNS entry that routes any subdomain to the root site: Example: *.example.com ex: http://xyz.example.com to http://example.com Next I want to rewrite the requests to point to a specific page, passing both the subdomain and the request path as attributes. Example: http://xyz123.example.com/images/header.jpg to http://example.com/get.aspx?id=xyz123&path=/images/header.jpg I've seen several questions on here regarding similar goals, but not quite the same. I'm new to using rewrite rules, so any help is appreciated. I will update this as I make progress.

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  • Why would Basic Auth not work with my WCF client to Java SOAP Web Service?

    - by orj
    I have a Java based web service that requires basic authentication to communicate with it. If I type the WSDL url into my browser I'm prompted for Basic Auth. Which I can get by entering the correct credentials. However using my WCF client doesn't work. I construct my WCF client like this: var binding = new BasicHttpBinding { MaxReceivedMessageSize = 2048 * 10240, Security = { Mode = BasicHttpSecurityMode.TransportCredentialOnly, Transport = { ClientCredentialType = HttpClientCredentialType.Basic, Realm = "MYREALM", ProxyCredentialType = HttpProxyCredentialType.None }, Message = { ClientCredentialType = BasicHttpMessageCredentialType.UserName, AlgorithmSuite = SecurityAlgorithmSuite.Default } } }; var client = new WebServiceClient(binding, endpoint); client.ClientCredentials.UserName.UserName = username; client.ClientCredentials.UserName.Password = password; client.DoWebServiceMethod(); I get the following exception. System.Net.WebException: The remote server returned an error: (401) Unauthorized. at System.Net.HttpWebRequest.GetResponse() at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) System.ServiceModel.Security.MessageSecurityException: The HTTP request is unauthorized with client authentication scheme 'Basic'. The authentication header received from the server was 'Basic realm="MYREALM"'. From what I can tell I'm doing things right. Where am I going wrong?

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  • Debugging Cactus Tests in Eclipse

    - by Th3sandm4n
    Side note: This is inherited code, I didn't do any of the setup and am new to the project. I'm trying to set up remote debugging in Eclipse for these unit tests that use Cactus. I've read around a bit (but I can't seem to find any REAL information how to set this up). Closest I've found is here (http://www.eclipse.org/webtools/community/tutorials/CactusInWTP/CactusInWTP.html), but it just says to Debug - Debug on Server, but nowhere does it say where the debug port is set or anything, and I can't find anything on how to enable this, set it. Just asking to see if anyone has set this up before, it would really help stepping through the code rather than just logging. The plugin (http://jakarta.apache.org/cactus/integration/eclipse/runner_plugin.html) Looks promising, but I also don't even know where to download it, it doesn't link to a location -.- The project uses ant, cactus, and I'm using Eclipse. Thanks EDIT Here is the target I'm using <junit fork="no" forkmode="perTest" printsummary="yes" haltonfailure="no" haltonerror="no" failureproperty="tests.failed"> <jvmarg value="-Xdebug" /> <jvmarg value="-Xrunjdwp:transport=dt_socket,address=localhost:8005,server=y,suspend=y" /> <formatter type="xml" usefile="true" /> <formatter type="plain" usefile="false" /> <classpath> <pathelement location="${clover.jar}"/> <path refid="cactus.classpath.id" /> <pathelement location="../ejb/src" /> </classpath> <sysproperty key="cactus.contextURL" value="${cactus.contextURL}"/> <test name="com.test.AllTests" outfile="TESTS" /> </junit>

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  • TTPhotoViewController: Images not loading until swipe

    - by Raj
    Hi, I am trying to implement TTPhotoViewController in a sample iPad application. I have implemented properly TTPhotoSource and TTPhoto protocols. The TTPhotoViewController does show image, but not until swiped. The right and left button in the tab bar below doesnt seem to work at all, they never change the image displayed. The UIActivityIndicatorView is never put up, nor the right and left buttons are validated when last or first images are reached. I am initializing the subclass of TTPhotoViewController as a rootViewController of a UINavigationController object which I am adding it onto a view. This rules out the possibility of the problem faced here: http://three20.stackexchange.com/questions/78/ttphotoviewcontroller-not-loading-images-immediately What else am I missing? Anybody faced similar problems and found a way around? Thanks, Raj

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  • Visual C#, Large Arrays, and LOH Fragmentation. What is the accepted convention?

    - by Gorchestopher H
    I have an other active question HERE regarding some hopeless memory issues that possibly involve LOH Fragmentation among possibly other unknowns. What my question now is, what is the accepted way of doing things? If my app needs to be done in Visual C#, and needs to deal with large arrays to the tune of int[4000000], how can I not be doomed by the garbage collector's refusal to deal with the LOH? It would seem that I am forced to make any large arrays global, and never use the word "new" around any of them. So, I'm left with ungraceful global arrays with "maxindex" variables instead of neatly sized arrays that get passed around by functions. I've always been told that this was bad practice. What alternative is there? Is there some kind of function to the tune of System.GC.CollectLOH("Seriously") ? Are there possibly some way to outsource garbage collection to something other than System.GC? Anyway, what are the generally accepted rules for dealing with large (85Kb) variables?

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  • jQuery Validation, multiple form ids for same function

    - by George
    Hi have two forms with the exact same validation rules, but different ids that I'd like to combine into just one function. How can I do that? var validator = $("#ValidateForm1").validate({ errorPlacement: function(error, element) { if ( element.is(":radio") ) error.appendTo( element.parent().next().next() ); else if ( element.is(":checkbox") ) error.appendTo ( element.next() ); else error.appendTo( element.parent().next() ); } }); var validator = $("#validateForm2").validate({ errorPlacement: function(error, element) { if ( element.is(":radio") ) error.appendTo( element.parent().next().next() ); else if ( element.is(":checkbox") ) error.appendTo ( element.next() ); else error.appendTo( element.parent().next() ); } });

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  • Developing FIrebug like web application for CSS things.

    - by vishwanath
    I am developing a web application for web designing. One part of it includes changing CSS styles on the run and saving the same back to server. I see that, first part of my motive is implemented there in firebug, where I can view CSS style rules applied to a particular HTML element and can change them to view the effect. An earlier question at SO lead to me firebug lite source code https://getfirebug.com/firebug-lite-debug.js , which is far less confusing than full version of firebug. My question was that, is there any way I can get documentation of the firebug/firebug lite code which can speed things up for me. After some googling I found out that there is Firebug API http://getfirebug.com/developer/api/firebug1.6/ But don't know how much useful it is for me. Any alternative way to do this is also welcome.

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  • Model Not Valid Even With No [Required] Attribute

    - by griegs
    I have a model which is validating as False even though I have no validation rules attached to it what so ever. So this is my model; public class QuickQuote { public Enumerations.AUSTRALIA_STATES state { get; set; } public Enumerations.FAMILY_TYPE familyType { get; set; } public Enumerations.CoverLevel hospitalCover { get; set; } public Enumerations.CoverLevel extrasCover { get; set; } public Enumerations.YesNo pregnancy { get; set; } } And in my controller I have; [AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(IndexFormViewModel fvm) { if (!ModelState.IsValid) return View(fvm); The problem is that unless I put a value into each field it's validating as false even though it shouldn't care. Can anyone see what the problem is here?

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  • Can I disable DataAnnotations validation on DefaultModelBinder?

    - by Max Toro
    I want DefaultModelBinder not to perform any validation based on DataAnnotations metadata. I'm already using DataAnnotations with DynamicData for the admin area of my site, and I need a different set of validation rules for the MVC based front-end. I'm decorating my classes with the MetadataType attribute. If I could have different MetadataType classes for the same model but used on different scenarios that would be great. If not I'm fine with just disabling the validation on the DefaultModelBinder, either by setting some property or by creating a specialized version of it.

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  • Is it easier to write a recursive-descent parser using an EBNF or a BNF?

    - by Vivin Paliath
    I've got a BNF and EBNF for a grammar. The BNF is obviously more verbose. I have a fairly good idea as far as using the BNF to build a recursive-descent parser; there are many resources for this. I am having trouble finding resources to convert an EBNF to a recursive-descent parser. Is this because it's more difficult? I recall from my CS theory classes that we went over EBNFs, but we didn't go over converting them into a recursive-descent parser. We did go over converting BNF's into a recursive-descent parser. The reason I'm asking is because the EBNF is more compact. From looking at the EBNF's in general, I notice that terms enclosed between { and } can be converted into a while loop. Are there any other guidelines or rules?

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  • java.io.FileNotFoundException: /target/test.log

    - by sword101
    Greetings all I am using Apache Camel and Apache CXF in this example: http://camel.apache.org/better-jms-transport-for-cxf-webservice-using-apache-camel.data/cxfcamelexample.zip I followed the readme and when tried to run the client & server classes i got this exception: log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /target/test.log (No such file or directory) at java.io.FileOutputStream.openAppend(Native Method) at java.io.FileOutputStream.<init>(FileOutputStream.java:177) at java.io.FileOutputStream.<init>(FileOutputStream.java:102) at org.apache.log4j.FileAppender.setFile(FileAppender.java:289) at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:163) at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:132) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:96) at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:654) at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612) at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441) at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:470) at org.apache.log4j.LogManager.<clinit>(LogManager.java:122) at org.apache.log4j.Logger.getLogger(Logger.java:104) at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:283) at org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.commons.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1040) at org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:838) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:601) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:333) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:307) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:645) at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:146) at org.springframework.context.support.AbstractRefreshableApplicationContext.<init>(AbstractRefreshableApplicationContext.java:84) at org.springframework.context.support.AbstractRefreshableConfigApplicationContext.<init>(AbstractRefreshableConfigApplicationContext.java:59) at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:58) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:136) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at com.example.customerservice.impl.CustomerServiceClient.main(CustomerServiceClient.java:34) so any ideas, how to solve this exception ?

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  • How to find cause and of the SocketException with message that an established connection was aborted

    - by cdpnet
    Hi All, I know the similar question may have been asked many times, but I want to represent the behavior I'm seeing and find if somebody can help predict the cause of this. I am writing a windows service which connects to other windows service over TCP. There are 100 user entities of this, and 5 connections per each. These users perform their tasks using their individual connections. The application goes on withough seeing this problem for 1 or 2 days. Or sometimes show the problem right after starting (-rarely). The best run I had was like 4 to 5 days without showing this exception. And after that application died or I had to stop it for various reasons. I want to know what can be causing this? Here is the stacktrace. System.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size) at System.Net.Security._SslStream.StartWriting(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.ProcessWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.Write(Byte[] buffer, Int32 offset, Int32 count)

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  • Exception handling policy in libraries

    - by Asaf R
    When building a .NET library, what's your exception handling policy? In specific, what's your policy about handling exceptions inside library calls and exposing them to calling code? Would you treat a library function as any other, thus letting all exceptions it can't handle flow out of it as-is? Would you create a custom exception for that library? Would you catch all exceptions and throw the library's exception instead? Would you set the original exception as the library's exception internal exception? How would the library dependence on a DB affect your exception-handling policy? What other guidelines and rules would you suggest?

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  • Middleware for MongoDB or CouchDB with jQuery Ajax/JSON frontend

    - by Tauren
    I've been using the following web development stack for a few years: java/spring/hibernate/mysql/jetty/wicket/jquery For certain requirements, I'm considering switching to a NoSQL datastore with an AJAX frontend. I would probably build the frontend with jQuery and communicate with the web application middleware using JSON. I'm leaning toward MongoDB because of more dynamic query capabilities, but am still considering CouchDB. I'm not sure what to use in the middle. Probably something RESTful? My preference is to stick with Java (or maybe Scala or Groovy) since I'm using tools like Drools for rules and Shiro for security. But then again, I want to pick something that is quick an easy to work with, so I'm open to other solutions. If you are building ajax/json/nosql solutions, I'd like to hear details about what tools you are using and any pros/cons you've found to using them. Thanks!

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  • Glassfish4 throw exception when I declare validation.xml file on classpath

    - by Rafael Ruiz Tabares
    I've tried to declare a custom validator for @NotNull constraint and Glassfish4 throw this exception when find /META-INF/validation.xml. Project works fine if I omit this file. Exception while dispatching an event java.lang.IllegalStateException: Singleton not set for WebappClassLoader(delegate=true; repositories=WEB-INF/classes/) at org.glassfish.weld.ACLSingletonProvider$ACLSingleton.get(ACLSingletonProvider.java:110) at org.jboss.weld.Container.instance(Container.java:54) at org.jboss.weld.bootstrap.WeldBootstrap.shutdown(WeldBootstrap.java:644) at org.glassfish.weld.WeldDeployer.doBootstrapShutdown(WeldDeployer.java:309) at org.glassfish.weld.WeldDeployer.event(WeldDeployer.java:220) at org.glassfish.kernel.event.EventsImpl.send(EventsImpl.java:131) at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:328) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:493) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:219) at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:491) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:527) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:523) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:356) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:522) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:546) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1423) at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1500(CommandRunnerImpl.java:108) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1762) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1674) at org.glassfish.admin.rest.resources.admin.CommandResource.executeCommand(CommandResource.java:396) at org.glassfish.admin.rest.resources.admin.CommandResource.execCommandSimpInMultOut(CommandResource.java:234) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:125) at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:152) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:91) at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:346) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:341) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:101) at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:224) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:267) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198) at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946) at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer.service(GrizzlyHttpContainer.java:331) at org.glassfish.admin.rest.adapter.JerseyContainerCommandService$3.service(JerseyContainerCommandService.java:165) at org.glassfish.admin.rest.adapter.RestAdapter.service(RestAdapter.java:181) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:246) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544) at java.lang.Thread.run(Thread.java:744) ]] [2014-06-09T19:37:52.476+0200] [glassfish 4.0] [SEVERE] [AS-WEB-CORE-00108] [javax.enterprise.web.core] [tid: _ThreadID=32 _ThreadName=admin-listener(1)] [timeMillis: 1402335472476] [levelValue: 1000] [[ ContainerBase.addChild: start: org.apache.catalina.LifecycleException: java.lang.IllegalArgumentException: javax.servlet.ServletException: com.sun.enterprise.container.common.spi.util.InjectionException: Error creating managed object for class: class org.jboss.weld.servlet.WeldListener at org.apache.catalina.core.StandardContext.start(StandardContext.java:5864) at com.sun.enterprise.web.WebModule.start(WebModule.java:691) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1041) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:1024) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:747) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2278) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1924) at com.sun.enterprise.web.WebApplication.start(WebApplication.java:139) at org.glassfish.internal.data.EngineRef.start(EngineRef.java:122) at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:291) at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:352) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:497) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:219) at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:491) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:527) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:523) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:356) at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:522) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:546) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1423) at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1500(CommandRunnerImpl.java:108) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1762) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1674) at org.glassfish.admin.rest.resources.admin.CommandResource.executeCommand(CommandResource.java:396) at org.glassfish.admin.rest.resources.admin.CommandResource.execCommandSimpInMultOut(CommandResource.java:234) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:125) at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:152) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:91) at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:346) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:341) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:101) at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:224) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:267) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198) at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946) at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer.service(GrizzlyHttpContainer.java:331) at org.glassfish.admin.rest.adapter.JerseyContainerCommandService$3.service(JerseyContainerCommandService.java:165) at org.glassfish.admin.rest.adapter.RestAdapter.service(RestAdapter.java:181) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:246) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.IllegalArgumentException: javax.servlet.ServletException: com.sun.enterprise.container.common.spi.util.InjectionException: Error creating managed object for class: class org.jboss.weld.servlet.WeldListener at org.apache.catalina.core.StandardContext.addListener(StandardContext.java:3270) at org.apache.catalina.core.StandardContext.addApplicationListener(StandardContext.java:2476) at com.sun.enterprise.web.TomcatDeploymentConfig.configureApplicationListener(TomcatDeploymentConfig.java:251) at com.sun.enterprise.web.TomcatDeploymentConfig.configureWebModule(TomcatDeploymentConfig.java:110) at com.sun.enterprise.web.WebModuleContextConfig.start(WebModuleContextConfig.java:266) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:486) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:163) at org.apache.catalina.core.StandardContext.start(StandardContext.java:5861) ... 66 more Caused by: javax.servlet.ServletException: com.sun.enterprise.container.common.spi.util.InjectionException: Error creating managed object for class: class org.jboss.weld.servlet.WeldListener at org.apache.catalina.core.StandardContext.createListener(StandardContext.java:3391) at org.apache.catalina.core.StandardContext.loadListener(StandardContext.java:5414) at com.sun.enterprise.web.WebModule.loadListener(WebModule.java:1788) at org.apache.catalina.core.StandardContext.addListener(StandardContext.java:3268) ... 73 more Caused by: com.sun.enterprise.container.common.spi.util.InjectionException: Error creating managed object for class: class org.jboss.weld.servlet.WeldListener at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.createManagedObject(InjectionManagerImpl.java:329) at com.sun.enterprise.web.WebContainer.createListenerInstance(WebContainer.java:1015) at com.sun.enterprise.web.WebModule.createListenerInstance(WebModule.java:2158) at org.apache.catalina.core.StandardContext.createListener(StandardContext.java:3389) ... 76 more Caused by: java.lang.NullPointerException at org.jboss.weld.bootstrap.WeldBootstrap.getManager(WeldBootstrap.java:435) at org.glassfish.weld.services.JCDIServiceImpl.createManagedObject(JCDIServiceImpl.java:320) at org.glassfish.weld.services.JCDIServiceImpl.createManagedObject(JCDIServiceImpl.java:263) at com.sun.enterprise.container.common.impl.managedbean.ManagedBeanManagerImpl.createManagedBean(ManagedBeanManagerImpl.java:485) at com.sun.enterprise.container.common.impl.managedbean.ManagedBeanManagerImpl.createManagedBean(ManagedBeanManagerImpl.java:439) at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.createManagedObject(InjectionManagerImpl.java:313) ... 79 more This is constraint xml file <constraint-definition annotation="org.hibernate.validator.constraints.NotNull"> <validated-by include-existing-validators="true"> <value>es.project.validator.customConstraint.NotEmptyValidator</value> </validated-by> </constraint-definition> And validation.xml <validation-config xmlns="http://jboss.org/xml/ns/javax/validation/configuration" xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/configuration validation-configuration-1.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <constraint-mapping>META-INF/validation/mapping.xml</constraint-mapping> Project's structure WEB-INF +----\classes +-------\META-INF ------- validation.xml ----------\validation +----------\mapping.xml Validator code import javax.validation.ConstraintValidator; import javax.validation.ConstraintValidatorContext; import javax.validation.constraints.NotNull; import org.hibernate.validator.constraintvalidation.HibernateConstraintValidatorContext; public class NotEmptyValidator implements ConstraintValidator<NotNull,Object> { @Override public void initialize(NotNull constraintAnnotation) { } @Override public boolean isValid(Object value, ConstraintValidatorContext context) { if(value.toString().isEmpty()){ ........... ........... ........... } return true; } }

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  • Invoke or BeginInvoke cannot be called on a control until the window handle has been created.

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    Hi I am trying to install SQL Server 2008 Developer Edition x64 on a Windows Server 2008 VM. I run the installer for a standalone installation and this works fine for the setup support rules bit. That passes ok but then I get this error: TITLE: SQL Server Setup failure. SQL Server Setup has encountered the following error: Invoke or BeginInvoke cannot be called on a control until the window handle has been created.. BUTTONS: OK How can I resolve this? I am getting 2008 R2 CTP but this is just a CTP. My download is from DreamSpark. Thanks

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  • Logic / Probability Question: Picking from a bag

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    I'm coding a board game where there is a bag of possible pieces. Each turn, players remove randomly selected pieces from the bag according to certain rules. For my implementation, it may be easier to divide up the bag initially into pools for one or more players. These pools would be randomly selected, but now different players would be picking from different bags. Is this any different? If one player's bag ran out, more would be randomly shuffled into it from the general stockpile.

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