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  • MVC & Design patterns in C++

    - by theunanonim
    I have an assignment (university level) in C++ The application that was done so far: - MVC agenda - the views are command-line - Agenda contains a list of contacts - a contact may be a friend or an acquiantance - Agenda may contain also a Company that is a contact and may contain other contacts (sorry the code is already too big as I tried to keep the MVC aspect of the application, and I can't post it here or request your time to study it..) To do: - implement factory method pattern - implement observer pattern - implement strategy pattern - implement visitor pattern The evaluation will depend on the number of added patterns and places they have been added. Am I an idiot or this is the stupidies possible assignement ? If not, please help me with some basic tips.. which one where ? Best Regards. P.S. Sorry for my English

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  • "No such file or directory" when invoking java

    - by Andrey Botalov
    I'm trying to re-install Oracle JDK 7 32 bit to 64 bit Ubuntu (previously 64 bit JDK was installed). JDK is currently present at /usr/lib/jvm/jdk1.7.0. I invoke sudo update-alternatives --remove "java" "/usr/lib/jvm/jdk1.7.0/bin/java" sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1 And then: /usr/lib/jvm/jdk1.7.0/bin$ java bash: /usr/bin/java: No such file or directory Why java can't be invoked?

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  • ???MFP?Java SE???

    - by sasa
    ??????????????????????????????(MFP)??Java SE?????????????2003???Java ME????????????2011???Java SE???????????????????Java?????????Java ME??SE??????????????????? ????????????MFP??????????????????????????????????????????????????????????Java SE ??????????????????????&??????????????MFP?????????????????????????Java Platform, Standard Edition(Java SE)???????????????????????????????????????????????????????????????????????????????

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  • RPi and Java Embedded GPIO: Sensor Hardware for Java Enabled Interface

    - by hinkmond
    Now here's the hardware you'll need to make a Java app interface with a static charge sensor connected to your Raspberry Pi via the GPIO port. It means another Fry's run of course. That's not too bad during Christmas since you can browse all the gadget and toys while doing your shopping for sensor hardware for your RPi. Here's a your shopping list: 1 - NTE312 JFET N-channel transistor (this is in place of the MPF-102) 1 - Set of Jumper Wires 1 - LED 1 - 300 ohm resistor 1 - set of header pins Grab all that from Fry's or your local hobby electronics shop and come back here for how to connect it together. Oh, and don't go too crazy buying all the other electronic toys and gadgets that catch your eye because of the holiday displays at the store. Hinkmond

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  • Learning good OOP design & unlearning some bad habits

    - by Nick
    I have been mostly a C programmer so far in my career with knowledge of C++. I rely on C++ mostly for the convenience STL provides and I hardly ever focus on good design practices. As I have started to look for a new job position, this bad habit of mine has come back to haunt me. During the interviews, I have been asked to design a problem (like chess, or some other scenario) using OOP and I doing really badly at that (I came to know this through feedback from one interview). I tried to google stuff and came up with so many opinions and related books that I don't know where to begin. I need a good through introduction to OOP design with which I can learn practical design, not just theory. Can you point me to any book which meets my requirements ? I prefer C++, but any other language is fine as long as I can pick-up good practices. Also, I know that books can only go so far. I would also appreciate any good practice project ideas that helped you learn and improve your OOP concepts. Thanks.

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  • How to Effectively Create Bullet Patterns

    - by SoulBeaver
    I'm currently creating a top-down shooter like Touhou. The most important factor of the game is that there are many diverse patterns and ways at which bullets are generated and shot at the player, see this video: http://www.youtube.com/watch?v=4Nb5Ohbt1Sg#start=0:60;end=9:53; At the moment, I'm using a class "Pattern" which has a series of steps on moving and shooting. However, I feel this method is quite laborous as I have to create a new Pattern for each attack and perhaps new Bullet classes that will implement a certain behavior. This question received a comment suggesting I should look into BulletML for easy creation and storage of bullets with a specific pattern. It looks decent, but it led me to wonder, what other solutions do you have that I should take into consideration? Update My current design is as follows: An example of an implemented pattern: My GigasPattern first executes a teleport which moves Alice to a certain point (X, Y) on the screen. After this is completed, the pattern starts using the Mover to move the sprite around (whereas teleporting has separate effects and animation). These are of no concern, really, as they are quite simple. The Shooter also creates various Attacks, which are classes again that the Shooter can use to create various patterns of bullets, much like the one in the question I posted. Once the Mover has reached it's destination, both it and the shooter stop and return to an inactive state. The pattern completes, is removed by the AI and a new one gets chosen.

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  • I can't understand this issue java.lang.IndexOutOfBoundsException.

    - by praveenb
    I've strange issue, that My application is working fine on some devices, But its crashing one of the client device(on Galaxy Nexus 4.1.1 v) at app starting screen. I get this stack trace from ACRA report. java.lang.IndexOutOfBoundsException at android.graphics.Paint.getTextRunAdvances(Paint.java:1731) at android.graphics.Paint.getTextRunAdvances(Paint.java:1704) at android.text.MeasuredText.addStyleRun(MeasuredText.java:164) at android.text.MeasuredText.addStyleRun(MeasuredText.java:204) at android.text.StaticLayout.generate(StaticLayout.java:281) at android.text.DynamicLayout.reflow(DynamicLayout.java:284) at android.text.DynamicLayout.(DynamicLayout.java:170) at android.widget.TextView.makeSingleLayout(TextView.java:5843) at android.widget.TextView.makeNewLayout(TextView.java:5741) at android.widget.TextView.onMeasure(TextView.java:6098) at android.view.View.measure(View.java:15172) at android.widget.LinearLayout.measureVertical(LinearLayout.java:833) at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) at android.view.View.measure(View.java:15172) at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:617) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:399) at android.view.View.measure(View.java:15172) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4814) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at android.view.View.measure(View.java:15172) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4814) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1390) at android.widget.LinearLayout.measureVertical(LinearLayout.java:681) at android.widget.LinearLayout.onMeasure(LinearLayout.java:574) at android.view.View.measure(View.java:15172) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4814) at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2148) at android.view.View.measure(View.java:15172) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1848) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1100) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1273) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:998) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4212) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) at android.view.Choreographer.doCallbacks(Choreographer.java:555) at android.view.Choreographer.doFrame(Choreographer.java:525) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) Im seeing above stack trace. I'm unable to understand the issue. Please help me on tacking the issue. Thank you.

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  • Design Code Outside of an IDE (C#)?

    - by ryanzec
    Does anyone design code outside of an IDE? I think that code design is great and all but the only place I find myself actually design code (besides in my head) is in the IDE itself. I generally think about it a little before hand but when I go to type it out, it is always in the IDE; no UML or anything like that. Now I think having UML of your code is really good because you are able to see a lot more of the code on one screen however the issue I have is that once I type it in UML, I then have to type the actual code and that is just a big duplicate for me. For those who work with C# and design code outside of Visual Studio (or at least outside Visual Studio's text editor), what tools do you use? Do those tools allow you to convert your design to actual skeleton code? It is also possible to convert code to the design (when you update the code and need an updated UML diagram or whatnot)?

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  • Software Architecture - From design to sucessful implementation

    - by user20358
    As the subject goes; once a software architect puts down the high level design and approach to a software that is to be developed from scratch, how does the team ensure that it is implemented successfully? To my mind the following things will need to be done Proper understanding of requirements Setting down coding practices and guidelines Regular code reviews to ensure the guidelines are being adhered to Revisiting the requirements phase and making necessary changes to design based on client inputs if there are any changes to requirements Proper documentation of what is being done in code Proper documentation of requirements and changes to them Last but not the least, implementing the design via object oriented code where appropriate Did I miss anything? Would love to hear any mistakes that you have learned from in your project experiences. What went wrong, what could have been done better. Thanks for taking the time..

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  • Replace JBoss error page with Axis2 fault XML response

    - by Dario
    I'm developing a webservice with Axis2 1.4.1 on JBoss 4.2.3/Tomcat 5.5.27 and Java 1.5.0 (15-b04). It works flawlessly but when an exception happens I get a JBoss error 500 HTML page instead of an Axis2 XML/SOAP fault. This behavoir is vexing, because it difficults to handle errors in the webservice client or in SoapUI while developing. Can I change this to get the SOAP fault? Maybe it's just an Axis2 or JBoss parameter, but I didn't find any clue about. EDIT: Here goes the new stacktrace: [ERROR] WSDoAllReceiver: security processing failed org.apache.axis2.AxisFault: WSDoAllReceiver: security processing failed at org.apache.rampart.handler.WSDoAllReceiver.processBasic(WSDoAllReceiver.java:214) at org.apache.rampart.handler.WSDoAllReceiver.processMessage(WSDoAllReceiver.java:86) at org.apache.rampart.handler.WSDoAllHandler.invoke(WSDoAllHandler.java:72) at org.apache.axis2.engine.Phase.invoke(Phase.java:317) at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:264) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:163) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:133) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:595) Caused by: org.apache.ws.security.WSSecurityException: The security token could not be authenticated or authorized at org.apache.ws.security.processor.UsernameTokenProcessor.handleUsernameToken(UsernameTokenProcessor.java:155) at org.apache.ws.security.processor.UsernameTokenProcessor.handleToken(UsernameTokenProcessor.java:53) at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:311) at org.apache.ws.security.WSSecurityEngine.processSecurityHeader(WSSecurityEngine.java:228) at org.apache.rampart.handler.WSDoAllReceiver.processBasic(WSDoAllReceiver.java:211) ... 23 more [ERROR] Servlet.service() para servlet AxisServlet lanzó excepción java.lang.NullPointerException at org.apache.rampart.RampartMessageData.<init>(RampartMessageData.java:308) at org.apache.rampart.MessageBuilder.build(MessageBuilder.java:61) at org.apache.rampart.handler.RampartSender.invoke(RampartSender.java:64) at org.apache.axis2.engine.Phase.invoke(Phase.java:317) at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:264) at org.apache.axis2.engine.AxisEngine.sendFault(AxisEngine.java:520) at org.apache.axis2.transport.http.AxisServlet.handleFault(AxisServlet.java:416) at org.apache.axis2.transport.http.AxisServlet.processAxisFault(AxisServlet.java:379) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:167) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:595) EDIT 2: After giving the bounty I found that I was wrong about 1.2.9-SNAPSHOT version of Axiom. I built it again, made sure the jars where correctly copied to lib directory and it worked! Finally, it was an Axiom bug, as said in the links provided by Vineet. Thanks!

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  • Patterns for dynamic CMS components (event driven?)

    - by CitrusTree
    Sorry my title is not great, this is my first real punt at moving 100% to OO as I've been procedural for more years than I can remember. I'm finding it hard to understand if what I'm trying to do is possible. Depending on people's thoughts on the 2 following points, I'll go down that route. The CMS I'm putting together is quote small, however focuses very much on different types of content. I could easily use Drupal which I'm very comfortable with, but I want to give myself a really good reasons to move myself into design patterns / OO-PHP 1) I have created a base 'content' class which I wish to be able to extend to handle different types of content. The base class, for example, handles HTML content, and extensions might handle XML or PDF output instead. On the other hand, at some point I may wish to extend the base class for a given project completely. I.e. if class 'content-v2' extended class 'content' for that site, any calls to that class should actually call 'content-v2' instead. Is that possible? If the code instantiates an object of type 'content' - I actually want it to instantiate one of type 'content-v2'... I can see how to do it using inheritance, but that appears to involve referring to the class explicitly, I can't see how to link the class I want it to use instead dynamically. 2) Secondly, the way I'm building this at the moment is horrible, I'm not happy with it. It feels very linear indeed - i.e. get session details get content build navigation theme page publish. To do this all the objects are called 1-by-1 which is all very static. I'd like it to be more dynamic so that I can add to it at a later date (very closely related to first question). Is there a way that instead of my orchestrator class calling all the other classes 1-by-1, then building the whole thing up at the end, that instead each of the other classes can 'listen' for specific events, then at the applicable point jump in and do their but? That way the orchestrator class would not need to know what other classes were required, and call them 1-by-1. Sorry if I've got this all twisted in my head. I'm trying to build this so it's really flexible.

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  • PHP/Java bridge problem

    - by Jack
    I am using tomcat 6 on windows. Here is the code I am testing. import java.io.ByteArrayOutputStream; import java.io.Closeable; import java.io.StringReader; import javax.script.Invocable; import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; /** * Create and run THREAD_COUNT PHP threads, concurrently accessing a * shared resource. * * Create 5 script engines, passing each a shared resource allocated * from Java. Each script engine has to implement Runnable. * * Java accesses the Runnable script engine using * scriptEngine.getInterface() and calls thread.start() to invoke each * PHP Runnable implementations concurrently. */ class PhpThreads { public static final String runnable = new String("<?php\n" + "function run() {\n" + " $out = java_context()->getAttribute('sharedResource', 100);\n" + " $nr = (string)java_context()->getAttribute('nr', 100);\n" + " echo \"started thread: $nr\n\";\n" + " for($i=0; $i<100; $i++) {\n" + " $out->write(ord($nr));\n" + " java('java.lang.Thread')->sleep(1);\n" + " }\n" + "}\n" + "?>\n"); static final int THREAD_COUNT = 5; public static void main(String[] args) throws Exception { ScriptEngineManager manager = new ScriptEngineManager(); Thread threads[] = new Thread[THREAD_COUNT]; ScriptEngine engines[] = new ScriptEngine[THREAD_COUNT]; ByteArrayOutputStream sharedResource = new ByteArrayOutputStream(); StringReader runnableReader = new StringReader(runnable); // create THREAD_COUNT PHP threads for (int i=0; i<THREAD_COUNT; i++) { engines[i] = manager.getEngineByName("php-invocable"); if (engines[i] == null) throw new NullPointerException ("php script engine not found"); engines[i].put("nr", new Integer(i+1)); engines[i].put("sharedResource", sharedResource); engines[i].eval(runnableReader); runnableReader.reset(); // cast the whole script to Runnable; note also getInterface(specificClosure, type) Runnable r = (Runnable) ((Invocable)engines[i]).getInterface(Runnable.class); threads[i] = new Thread(r); } // run the THREAD_COUNT PHP threads for (int i=0; i<THREAD_COUNT; i++) { threads[i].start(); } // wait for the THREAD_COUNT PHP threads to finish for (int i=0; i<THREAD_COUNT; i++) { threads[i].join(); ((Closeable)engines[i]).close(); } // print the output generated by the THREAD_COUNT concurrent threads String result = sharedResource.toString(); System.out.println(result); // Check result Object res=manager.getEngineByName("php").eval( "<?php " + "exit((int)('10011002100310041005'!=" + "@system(\"echo -n "+result+"|sed 's/./&\\\n/g'|sort|uniq -c|tr -d ' \\\n'\")));" + "?>"); System.exit(((Number)res).intValue()); } } I have added all the libraries. When I run the file I get the following error - run: Exception in thread "main" javax.script.ScriptException: java.io.IOException: Cannot run program "php-cgi": CreateProcess error=2, The system cannot find the file specified at php.java.script.InvocablePhpScriptEngine.eval(InvocablePhpScriptEngine.java:209) at php.java.script.SimplePhpScriptEngine.eval(SimplePhpScriptEngine.java:178) at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:232) at PhpThreads.main(NewClass.java:53) Caused by: java.io.IOException: Cannot run program "php-cgi": CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(ProcessBuilder.java:459) at java.lang.Runtime.exec(Runtime.java:593) at php.java.bridge.Util$Process.start(Util.java:1064) at php.java.bridge.Util$ProcessWithErrorHandler.start(Util.java:1166) at php.java.bridge.Util$ProcessWithErrorHandler.start(Util.java:1217) at php.java.script.CGIRunner.doRun(CGIRunner.java:126) at php.java.script.HttpProxy.doRun(HttpProxy.java:63) at php.java.script.CGIRunner.run(CGIRunner.java:111) at php.java.bridge.ThreadPool$Delegate.run(ThreadPool.java:60) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.<init>(ProcessImpl.java:81) at java.lang.ProcessImpl.start(ProcessImpl.java:30) at java.lang.ProcessBuilder.start(ProcessBuilder.java:452) ... 8 more What am I missing?

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  • Cisco Prime NCS not starting

    - by Kwazii
    I have received the Cisco Prime OVA file and which we placed onto an Oracle virtual environment. We turn the VM on and the CLI boots, When we try to start the NCS service we get errors. HOSTNAME/USER# ncs start Starting Network Control System... Exception in thread "main" java.lang.NullPointerException at com.cisco.wnbu.udi.impl.UDIManager.isPhysicalAppliance(UDIManager.java:184) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:335) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) Logs HOSTNAME/USER# show logging 07/18/13 10:25:38.878 INFO [system] [main] Setting management interface address to 192.168.0.10 07/18/13 10:25:38.884 INFO [system] [main] Setting peer server interface address to 192.168.0.10 07/18/13 10:25:38.884 INFO [system] [main] Setting client interface address to 192.168.0.10 07/18/13 10:25:38.884 INFO [system] [main] Setting local host name to HOSTNAME 07/18/13 10:25:40.341 ERROR [system] [main] THROW java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:419) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:536) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:228) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521) at java.sql.DriverManager.getConnection(Unknown Source) at java.sql.DriverManager.getConnection(Unknown Source) at com.cisco.server.persistence.util.OracleSchemaUtil.openConnection(OracleSchemaUtil.java:277) at com.cisco.server.persistence.util.OracleSchemaUtil.dbServerUp(OracleSchemaUtil.java:836) at com.cisco.packaging.DBAdmin.dbServerUp(DBAdmin.java:1429) at com.cisco.packaging.WCSAdmin.status(WCSAdmin.java:833) at com.cisco.packaging.WCSAdmin.status(WCSAdmin.java:757) at com.cisco.packaging.WCSAdmin.wcsServerUp(WCSAdmin.java:637) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:294) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:375) at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:422) at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:678) at oracle.net.ns.NSProtocol.connect(NSProtocol.java:238) at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1054) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308) ... 15 more Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(Unknown Source) at java.net.PlainSocketImpl.connectToAddress(Unknown Source) at java.net.PlainSocketImpl.connect(Unknown Source) at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:209) at oracle.net.nt.ConnOption.connect(ConnOption.java:123) at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:353) ... 20 more 07/18/13 10:25:40.347 INFO [admin] [main] 07/18/13 10:25:40.347 INFO [admin] [main] Starting Network Control System... 07/18/13 10:25:40.347 INFO [admin] [main] 07/18/13 10:25:40.394 ERROR [admin] [main] Problem using CARS API: com.cisco.cars.fnd.CARSException: CARS_FAILURE : -999 : Failed to get UDI configuration. : Failure occurred during request at com.cisco.cars.fnd.CARSException.analyzeReturnCode(CARSException.java:118) at com.cisco.cars.serviceEngine.impl.EngineAdminServiceImpl.getUDI(EngineAdminServiceImpl.java:66) at com.cisco.wnbu.udi.impl.UDIManager.generateUDI(UDIManager.java:69) at com.cisco.wnbu.udi.impl.UDIManager.setPersistenceDirectory(UDIManager.java:139) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:332) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) 07/18/13 10:25:40.396 ERROR [admin] [main] Problem using CARS API: com.cisco.cars.fnd.CARSException: CARS_FAILURE : -999 : Failed to get UDI configuration. : Failure occurred during request at com.cisco.cars.fnd.CARSException.analyzeReturnCode(CARSException.java:118) at com.cisco.cars.serviceEngine.impl.EngineAdminServiceImpl.getUDI(EngineAdminServiceImpl.java:66) at com.cisco.wnbu.udi.impl.UDIManager.generateUDI(UDIManager.java:69) at com.cisco.wnbu.udi.impl.UDIManager.setVirtualPID(UDIManager.java:169) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:333) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) 07/18/13 10:25:40.397 ERROR [admin] [main] Problem using CARS API: com.cisco.cars.fnd.CARSException: CARS_FAILURE : -999 : Failed to get UDI configuration. : Failure occurred during request at com.cisco.cars.fnd.CARSException.analyzeReturnCode(CARSException.java:118) at com.cisco.cars.serviceEngine.impl.EngineAdminServiceImpl.getUDI(EngineAdminServiceImpl.java:66) at com.cisco.wnbu.udi.impl.UDIManager.generateUDI(UDIManager.java:69) at com.cisco.wnbu.udi.impl.UDIManager.setPhysicalPID(UDIManager.java:154) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:334) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) 07/18/13 10:25:40.397 ERROR [admin] [main] Problem using CARS API: com.cisco.cars.fnd.CARSException: CARS_FAILURE : -999 : Failed to get UDI configuration. : Failure occurred during request at com.cisco.cars.fnd.CARSException.analyzeReturnCode(CARSException.java:118) at com.cisco.cars.serviceEngine.impl.EngineAdminServiceImpl.getUDI(EngineAdminServiceImpl.java:66) at com.cisco.wnbu.udi.impl.UDIManager.generateUDI(UDIManager.java:69) at com.cisco.wnbu.udi.impl.UDIManager.getUDI(UDIManager.java:112) at com.cisco.wnbu.udi.impl.UDIManager.isPhysicalAppliance(UDIManager.java:184) at com.cisco.packaging.WCSAdmin.start(WCSAdmin.java:335) at com.cisco.packaging.WCSAdmin.runMain(WCSAdmin.java:281) at com.cisco.packaging.WCSAdmin.main(WCSAdmin.java:901) Any help is appreciated, Thanks

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  • A way to return multiple return values from a method: put method inside class representing return value. Is it a good design?

    - by john smith optional
    I need to return 2 values from a method. My approach is as follows: create an inner class with 2 fields that will be used to keep those 2 values put the method inside that class instantiate the class and call the method. The only thing that will be changed in the method is that in the end it will assign those 2 values to the fields of the instance. Then I can address those values by referencing to the fields of that object. Is it a good design and why?

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  • exception occured in java compiler

    - by user2892977
    I am a beginner in Java.I have JDK1.7.0 installed on windows 7 OS.I just wrote a sample java file where the file was not getting compiled and throws the below error. Sam.java:5: ';' expected Sample p = New Sample(); An exception has occurred in the compile r (1.7.0-ea). Please file a bug at the Java Developer Connection (http://java.su n.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you. java.lang.StringIndexOutOfBoundsException: String index out of range: 26 at java.lang.String.charAt(String.java:694) at com.sun.tools.javac.util.Log.printErrLine(Log.java:251) at com.sun.tools.javac.util.Log.writeDiagnostic(Log.java:343) at com.sun.tools.javac.util.Log.report(Log.java:315) at com.sun.tools.javac.util.AbstractLog.error(AbstractLog.java:96) at com.sun.tools.javac.parser.Parser.reportSyntaxError(Parser.java:295) at com.sun.tools.javac.parser.Parser.accept(Parser.java:326) at com.sun.tools.javac.parser.Parser.blockStatements(Parser.java:1599) at com.sun.tools.javac.parser.Parser.block(Parser.java:1500) at com.sun.tools.javac.parser.Parser.block(Parser.java:1514) at com.sun.tools.javac.parser.Parser.methodDeclaratorRest(Parser.java:25 69) at com.sun.tools.javac.parser.Parser.classOrInterfaceBodyDeclaration(Par ser.java:2518) at com.sun.tools.javac.parser.Parser.classOrInterfaceBody(Parser.java:24 45) at com.sun.tools.javac.parser.Parser.classDeclaration(Parser.java:2290) at com.sun.tools.javac.parser.Parser.classOrInterfaceOrEnumDeclaration(P arser.java:2228) at com.sun.tools.javac.parser.Parser.typeDeclaration(Parser.java:2217) at com.sun.tools.javac.parser.Parser.compilationUnit(Parser.java:2163) at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:530) at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:571) at com.sun.tools.javac.main.JavaCompiler.parseFiles(JavaCompiler.java:82 2) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:748) at com.sun.tools.javac.main.Main.compile(Main.java:386) at com.sun.tools.javac.main.Main.compile(Main.java:312) at com.sun.tools.javac.main.Main.compile(Main.java:303) at com.sun.tools.javac.Main.compile(Main.java:82) at com.sun.tools.javac.Main.main(Main.java:67) Below is the code for Sam.java file class sam { public static void main(String args[]) { Sample p = New Sample(); p.show(); p.display(); } } I researched in google with the various compiler options but that did not help.I would like to understand the below errors. 1 - Sam.java:5: ';' expected 2 - An exception has occurred in the compiler (1.7.0-ea)

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  • Mac OS 10.7 Missing Java Completely

    - by Stuartsoft
    I'm in dire straights. I was trying to replace my java JDK and downgrade to 1.6 and somehow managed to completely screw up all the previous versions in the process. Bottom line, my Mac has no JDK installed at all. I've tried reinstalling java 1.7 from Oracle, I've tried using Pacifist to manually extract the files from the 1.6 Apple Java... nothing. When I open terminal and use java -version all I get is -bash: java: command not found My real goal is just to get back to java 1.7, but even after running the installer, java is still inaccessible to terminal and other applications.

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  • Java Runtime Exception

    - by ikurtz
    when i run my application i get the following error: Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.text.FlowView$FlowStrategy.layoutRow(FlowView.java:546) at javax.swing.text.FlowView$FlowStrategy.layout(FlowView.java:460) at javax.swing.text.FlowView.layout(FlowView.java:184) at javax.swing.text.BoxView.setSize(BoxView.java:380) at javax.swing.text.BoxView.updateChildSizes(BoxView.java:349) at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:331) at javax.swing.text.BoxView.layout(BoxView.java:691) at javax.swing.text.BoxView.setSize(BoxView.java:380) at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:1702) at javax.swing.plaf.basic.BasicTextUI.modelToView(BasicTextUI.java:1034) at javax.swing.text.DefaultCaret.repaintNewCaret(DefaultCaret.java:1291) at javax.swing.text.DefaultCaret$1.run(DefaultCaret.java:1270) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) as the error does not mention any of my classes, how would i go about in finding what is causing this? if i try: public void notifyChatMessage(String message){...} the error goes away. but if i try: public void notifyChatMessage(Object message){...} the error is reported. please advise.

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  • How to resolve a java.security.AccessControlException?

    - by thisisananth
    I have written an SAX parser in my Google App Engine Web application. in that I try to validate my xml file with an xsd. But I am getting an access control exception when my code is tyring to access that xsd. java.security.AccessControlException: access denied (java.io.FilePermission \WEB-INF\ApplicationResponse.xsd read) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:166) at java.lang.SecurityManager.checkRead(SecurityManager.java:871) at java.io.FileInputStream.(FileInputStream.java:100) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.xsdToXMLInputSource(XMLSchemaLoader.java:830) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.processJAXPSchemaSource(XMLSchemaLoader.java:708) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:554) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:2459) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1807) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:705) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:330) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242) at sax.SAXLocalNameCount.parse(SAXLocalNameCount.java:220) at com.sms2mint.InterfaceServlet.doGet(InterfaceServlet.java:54) Please let me know how to debug this? I have tried to place the xsd in classes, webcontent, /WEB-INF but didn't help. Also declared this as a resource file in appengine-web.xml also but no avail.

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  • Java Spotlight Episode 56: Stephan Jenssen, Java Champion, on Devoxx and Parleys

    - by Roger Brinkley
    Tweet Interview with Stephan Janssen, Java Champion, on Devoxx and Parleys Joining us this week on the Java All Star Developer Panel are Dalibor Topic, Java Free and Open Source Software Ambassador and Alexis Moussine-Pouchkine, Java EE Developer Advocate. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link: Java Spotlight Podcast in iTunes. Show Notes News Devoxx Live Recording of the Java Spotlight Podcast. Come be part of the live recording. November 18, 10:45am in BOF 1 room next to the info desk Wanted: Java Code Brainteasers Adopt a JSR Flash to Focus on PC Browsing and Mobile Apps; Adobe to More Aggressively Contribute to HTML5 First binary snapshots of Project Lambda are available JSF 2.2 recent progress - Early Draft Latest OEPE (11.1.1.8) - Eclipse 3.7.1-based  Events Nov 14-18 Devoxx, Antwerp Nov 15-17, DOAG, Nuremberg, Germany Nov 22-25, OTN Developer Days in the Nordics Nov 22-23, Goto Conference, Prague Dec 6-8, Java One Brazil, Sao Paulo Feature interview Stephan Janssen is a serial entrepreneur that has founded several successful organizations such as the Belgian Java User Group (BeJUG) in 1996, JCS Int. in 1998, JavaPolis in 2002 and now Parleys.com in 2006. He has been using Java since its early releases in 1995 with experience of developing and implementing real world Java solutions in the finance and manufacturing industries. Today Stephan is the CTO of the Java Competence Center at RealDolmen. He was selected by BEA Systems as the first European (independent) BEA Technical Director. He has also been recognized by the Server Side as one of the 54 Who is Who in Enterprise Java 2004. Sun has recognized in 2005 his efforts for the Java Community and has engaged him in the Java Champion project. He has spoken at numerous Java and JUG conferences around the world. Mail Bag What's Cool Increased interest in Mobile and Embedded topics, on the heels of the JavaOne announcements. Speaking engagements, etc PodFodder: John Duimovich on IBM & OpenJDK at JavaOne 2011 Oracle Releases Oracle Solaris 11, the First Cloud OS Show Transcripts Transcript for this show is available here when available.

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  • Java Web Start vs Embedded Java Applet

    - by Matt H
    Hi, I'm going to deploy my Java game to show it to my friends and whatnot, but I'm having trouble deciding between Java Web Start and applets. Under what conditions is one preferable over another and what advantages/disadvantages are there?

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  • Running a Java Mobile application in Java Standard Edition

    - by Casebash
    I have a Java Mobile application using CLDC 1.0 and MIDP 2.0 and I would like to port it to Java standard edition so that I can demonstrate the application on my company website. Can anyone give me any advice on how I would do this or suggest any tools that could help? Links GamesOnDeck: Contains information on implementing quite a few basic classes

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  • On which crowdsourced design site have you the best experience? (ie, crowdspring, mycroburst, etc)

    - by Darryl Hein
    I wasn't sure which site to ask this on (as Graphic Design hasn't reached beta yet), so I thought I would try here. I'm looking to have a couple logos and website designs done. I've had some great local designers, but each one has moved or gone else where so I keep having to look for new designers. My thought and realization in the last couple days is to go to a crowdsourced design site like crowdspring.com or mycroburst.com. Both of these sites look good, but I'm wondering what else is out there? Are there better ones and how have your experiences been them?

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  • JSR 360 and JSR 361: A Big Leap for Java ME 8

    - by terrencebarr
    It might have gone unnoticed to some, but Java ME took a big leap forward a couple of weeks ago with the filing of two new JSRs: JSR 360: “Connected Limited Device Configuration 8″ (aka CLDC 8) JSR 361: “Java ME Embedded Profile” (aka ME EP) Together, these two JSRs will significantly update, enhance, and modernize the Java ME platform, and specifically small embedded Java, with a host of new features and functionality. JSR 360 – Connected Limited Device Configuration 8 CLDC 8 is based on JSR 139 (CLDC 1.1) and updates the core Java ME VM, language support, libraries, and features to be aligned with Java SE 8. This will include: VM updated to comply with the JVM language specification version 2 Support for SE 7/8 language features like Generics, Assertions, Annotations, Try-with-Resources, and more New libraries such as Collections, NIO subset, Logging API subset A consolidated and enhanced Generic Connection Framework for multi-protocol I/O With CLDC 8, Java ME and Java SE are entering their next phase of alignment – making Java the only technology today that truly scales application development, code re-use, and tooling across the whole range of IT platforms, from small embedded to large enterprise. JSR 361 – Java ME Embedded Profile ME EP is based on JSR 228 (IMP-NG) and updates the specification in key areas to provide a powerful and flexible application environment for small embedded Java platforms, building on the features of CLDC 8:  A new, lightweight component and services model Shared libraries Multi-application concurrency, inter-application communication, and event system Application management API optionality, to address low-footprint use cases With ME EP, application developers will have a modern application environment which allows development and deployment of  modular, robust, sophisticated, and footprint-optimized solutions for a wide range of embedded use cases and devices. Summary While these JSRs are still under development, it’s clear that there are exciting new times ahead for Java ME – turning into a serious application platform while maintaining the focus on resource-constrained devices to address the expected explosion of small, smart, and connected embedded platforms. To learn more, click on the above links for JSR 360 and JSR 361. Or review the JavaOne 2012 online presentations on the topic: CON11300: Expanding the reach of the Java ME Platform CON5943: Java ME 8 Service Platform And stay tuned for more in this space! Cheers, – Terrence Filed under: Mobile & Embedded Tagged: "jsr 360", "jsr 361", "me 8", embedded, Embedded Java, JCP

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