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  • security exception in file handling in j2me

    - by learn
    i am trying to generate a logfile. static String fname="file:///c:/logfile.txt;append=true"; fc = (FileConnection) Connector.open(fname, Connector.WRITE); if (fc.exists()) { // file exists, open at EOF. offset = fc.fileSize(); os = fc.openOutputStream(offset); } else { // file does not exist, create and open. fc.create(); os = fc.openOutputStream(); } getting tthe following exception java.lang.SecurityException: Access denied at com.symbian.midp.io.protocol.file.FileConnectionImpl.open(FileConnectionImpl.java:71) at com.symbian.midp.io.protocol.file.Protocol.openConnection(Protocol.java:40) at com.symbian.gcf.ProtocolBase.openConnection(), bci=159 at com.symbian.gcf.GCFConnector.open(), bci=237 at com.symbian.j2me.midp.legacy.LegacyConnectionFactory.open(LegacyConnectionFactory.java:35) at com.symbian.j2me.midp.runtimeV2.ConnectionService.open(), bci=8 at javax.microedition.io.Connector.open(), bci=6 at javax.microedition.io.Connector.open(Connector.java:48) at Symbian.LogFile.FileOpen(LogFile.java:27) at Symbian.Symbian.startApp(Symbian.java:216) at javax.microedition.midlet.MIDletInvoker.invokeStartApp(MIDletInvoker.java:30) at com.symbian.j2me.midp.runtimeV2.Application.startAction(Application.java:458) at com.symbian.j2me.midp.runtimeV2.Application.startRequest(Application.java:413) at com.symbian.j2me.midp.runtimeV2.Application.event(Application.java:264) at com.symbian.j2me.midp.runtimeV2.ApplicationEvent.dispatch(ApplicationEvent.java:90) at com.symbian.j2me.midp.runtimeV2.ApplicationThread.run(ApplicationThread.java:30) Access denied

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  • How to trigger a Symbian C++ application within a J2ME application for Nokia phones using J2ME API?

    - by kennykee
    Hi all, Anyone knows how to trigger a Symbian C++ application using any J2ME API call? I have a J2ME application that needs a customized photo taking application in Symbian C++. The reason for separating into two applications is because J2ME has a limit in heap size and the J2ME needs to know the path of photo after taking it. Thanks a lot for your help. Regards, Kenny

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  • implementation of interp1 function of MATLAB in J2ME

    - by Jeeka
    Hi, i am looking to implement the interp1, 1-D data interpolation (table lookup), function available in MATLAB in J2ME or JAVA. here is the link http://www.mathworks.com/access/helpdesk/help/techdoc/ref/interp1.html Is there any library available in J2ME or JAVA which has already implemented the same function ? If not can anybody help me in implementing interp1 function in J2ME or JAVA ?

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  • How to implement thread timeout in J2ME?

    - by lilo
    I am using Connector in J2ME and found that sometimes it take a very long time to send a request, and sometime it may halt the whole process. So I try to put code related to Connector in a thread and try to set timeout to the thread. But I found out that it's very difficult to do this in J2ME because there's no join(long) in J2ME. Is there any way to do this? Or any better way to deal with network connection in J2ME? Thanks a lot in advance.

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  • J2ME Development: Netbeans vs Eclipse

    - by Andrea Zilio
    I have to develop a J2ME application that will take advantage of Bluetooth technology to communicate with other instances of itself on other mobile devices. I know that both NetBeans and Eclipse offer an integrated environment to develop J2ME applications. Which one is more mature and stable? Which one offers better tools? My application has to communicate to many more devices running the same app and so I need to test my application with multiple instances of emulators running it and allowing these emulator instances to see each other via the J2ME Bluetooth APIs. Will I be able to do this?

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  • Using the Antenna and J2ME Polish preprocessors interchangeably and setting a variable value

    - by walter
    I have J2ME code, which I want to be able to compile using the J2ME Polish preprocessor or the wtkpreprocessor (antenna). They mostly use the same directives so it usually works, but ... When I want to insert an URL value in the Java code this gives a problem. In Antenna the code would look like this: //#ifdef my.url //# System.out.println("My Url"); //#expand String location = "%my.url%"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif and in J2ME Polish it would look like this: //#ifdef my.url:defined //# System.out.println("My Url"); //#= String location = "${my.url}"; //#else System.out.println("Default"); String location = "http://www.some.default.url.com"; //#endif I want some way in which I can use the preprocessors interchangeably and still be able to set the url in the build.xml, any ideas?

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  • J2ME JAD file analog in Android

    - by Arkaha
    When my server gaves apk file to user, I need to put some values In this file, for j2me platform I use JAD file, and put my values there: MY_KEY: SomeKeyValue MY_KEY2: SomeKeyValue2 When j2me application starts on device, I can access this values through System.getProperty. How can I do the same on android platform?

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  • use bouncy castle to create public key on j2me

    - by mike
    I got the public key from the certificate, keypair is a java.security.KeyPair object String public_key = keypair.getPublic().toString(); I want to send this to the via an http connection to a J2me application. I cannot find any documentation to convert the transmitted string to a Public key that can be used to encrypt Strings. I also want the J2me to verify signed strings from the server. I want to then send the encrypted strings back to the server.

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  • Pass certificate to j2me

    - by user326096
    I created a certificate on apache server. x.509 public key certificate RSA created using the keytool I need to pass this to a J2me app, via http. So the J2me app can encrypt data How do I do this.

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  • pleasae help in j2me

    - by samira
    hello i am a student and i am doing my senior project it is about developing an application in j2me for scanning a barcode and extract the number of the barcode in a message to be send. please i search the net but i cant found something usefull i am new at j2me if someone could help me with sourch code and how to create it i will be very thankfull my email is [email protected] thanks in advanced

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  • combobox in j2me

    - by learn
    how can i keep the combobox on the form in j2me with out using frameworks? i have tried this but it is not showing any drop down for selection. ChoiceGroup CoursePOP = new ChoiceGroup ("Pop Up choice", Choice.EXCLUSIVE, new String[] {"Python", "J2ME","Symbian"}, null);

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  • JSON parser for J2ME

    - by Liedman
    I need a basic JSON parser that works with J2ME / CLDC 1.1. A Google search returns tons of answers on this (some even on stackoverflow), but it appears that all point to libraries and solutions that are no longer available (for example, lots point to an implementation that is supposed to be on the json.org site, but at least I can't find anything that isn't J2SE only there). My best hope so far is the source linked here: https://meapplicationdevelopers.dev.java.net/mobileajax.html, but from that one I can't even find a straight forward way to download the code. Given the mature state of Java in all other aspects, surely there must be somewhere I can get a pre-compiled JAR to use for parsing JSON from J2ME?

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  • J2ME HTTPS Connection Problem: Certificate was issued by an unrecognized entity

    - by Mustafa
    I am developing a little J2ME application that will read our grades from our university's server. With Desktop Applications, It is fine, I can do it but in J2ME, it always gives me this error, even I use well-known services like HTTPS Google, I still get the same error. urlConn = (HttpsConnection) Connector.open("https://stars.bilkent.edu.tr/srs/ajax/login.php"); urlConn.setRequestMethod(HttpsConnection.POST); urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); o = urlConn.openOutputStream(); // Sending my POST requests to server input = urlConn.openDataInputStream(); In the last line I always get the error I mentioned above. What should I do about it?

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  • Upload image from J2ME client to a Servlet

    - by Akash
    I want to send an image from a J2ME client to a Servlet. I am able to get a byte array of the image and send it using HTTP POST. conn = (HttpConnection) Connector.open(url, Connector.READ_WRITE, true); conn.setRequestMethod(HttpConnection.POST); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); os.write(bytes, 0, bytes.length); // bytes = byte array of image This is the Servlet code: String line; BufferedReader r1 = new BufferedReader(new InputStreamReader(in)); while ((line = r1.readLine()) != null) { System.out.println("line=" + line); buf.append(line); } String s = buf.toString(); byte[] img_byte = s.getBytes(); But the problem I found is, when I send bytes from the J2ME client, some bytes are lost. Their values are 0A and 0D hex. Exactly, the Carriage Return and Line Feed. Thus, either POST method or readLine() are not able to accept 0A and 0D values. Any one have any idea how to do this, or how to use any another method?

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  • J2ME UI on Samsung Bada platform

    - by Kiran Kuppa
    Hello All, When a J2ME application runs on Samsung Bada phone (GT-S5320, in my case),a virtual keypad is shown on the screen by default and always! This virtual keypad consists of the following keys - LEFT,RIGHT,UP,DOWN,FIRE and SOFT1, SOFT2. Is there anyway I can control when this keypad is displayed and when it isn't. I understand that this would be a platform specific solution. But does it exist? Thanks, -- Kiran Kuppa

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  • bluetooth GPS device in J2ME emulator / Wireless Toolkit

    - by hsmit
    I'm developing a j2me application for my mobile phone (a Nokia). I'm using WTK (Wireless Toolkit) to test my code. Because I'm using a GPS device via a Bluetooth connection, I would like to be able to extend the emulator with bluetooth possibilities. Has anyone experience with BT & WTK? according to this article there is no way to do it by default. Any other ideas?

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