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• net.sf.json.JSONObject adds backslashes where it's not expected ?

  - by cx42net

  Hi there, I'm loosing my hair trying to figure out why net.sf.json.JSONObject add extra backslash where it shouldn't on my java code : JSONObject obj = new JSONObject (); obj.element ("column_name", "<a href=\"#\" title=\"test\">Test !</a>"); will output : <a href=\"#\" title=\"test\">Test !<\/a> with an extra "\" near <\/a. How can I avoid this behavior ? Thanks for your help !

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• File upload-download in its actual format.

  - by ras

  hi, I've to make a code to upload/download a file on remote machine. But when i upload the file new line is not saved as well as it automatically inserts some binary characters. Also I'm not able to save the file in its actual format, I've to save it as "filename.ser". I'm using serialization-deserialization concept of java. Thanks in advance.

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• topic for final year project

  - by Mrinal Shrivastava

  i am a computer science student and have just entered in my final year. i wanna do a project on something new and exciting in the field of networking dbms os or ai. i am proficient in java c, oracle and am improving my linux skills.. please give me some suggestions for hot topics..

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• How to create a database binding using Windows Builder Pro?

  - by Tiago

  For the first time, I'm creating a Java Swing application. I'm using Windows Builder Pro in Eclipse, and a MySQL database (already setup up). Let's say I have a combo box, and I want (for instance) all 'name' fields from a 'certain' table appear. How can I setup that binding? I know how to programatically handle the connection and query code, what I would like to know is how to make that binding in Eclipse.

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• too long line in manifest file while trying to create jar

  - by fadmaa

  I am getting a too long line error while trying to build a jar. the long line in the manifest file is the Class-Path line as the application uses a lot of third-party libraries. needless to say, I am using Windows :-( and Eclipse Java 1.6 I tried Class-Path: lib or Class-Path: lib/ but they did not work.

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• Automation of EAR packing

  - by glebreutov

  I need to automate packing of Java EE projects into EAR archive in Eclipse. The most easy way, I think, is using Ant script. But writing of Ant from start is routine and long task. Is there a way to generate Ant script based on my actions in eclipse (like macros in MS Office)? Or, maybe, exists easier way to do this? Thanks!

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• How to make the generic return type of a method dependend of the parameter type?

  - by deamon

  I have a convert method, which takes a String and a class as arguments and constructs an object of the given class, which will be returned. The usage should look like this Something s = Converter.convert("...", Something.class) Is it possible to express this with Java generics? Something like: public static <T> T convert(String source, ??? TClass) What would be ????

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• How to get the number of columns from a JDBC Resultset?

  - by Sanoj

  I am using CsvJdbc (it is a JDBC-driver for csv-files) to access a csv-file. I don't know how many columns the csv-file contains. How can I get the number of columns? Is there any JDBC-function for this? I can not find any methods for this in java.sql.Resultset. For acessing the file, I use code similar to the example on the CsvJdbc website.

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• Browser removing + from request parameter

  - by Marquinio

  Hello everyone, I'm trying to pass an SQL query string from a Java Applet to Servlet as a parameter. Problem is that in Applet I have something say: sql=select * from p where(+p=1) The resulting sql parameter in the Servlet is sql=select * from p where(+p=1). So anyone knows how to prevent the browser from removing the + character from parameters? Is there a escape character? Thank you.

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• How can I connect to a mysql db from a different server ?

  - by HJ-INCPP

  Hello, I have, let's say, a root website with mysql db on a remote server. I want to connect to that particular database (to make queries), from many other little websites (with lower priviledges). Can this be done? Language: jsp,java,php Thank you

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• JUnit @Rule to pass parameter to test

  - by 01

  I'd like to create rule to be able to do something like this @Test public void testValidationDefault(int i) throws Throwable {..} Where i is parameter passed to the test by @Rule. However I do get java.lang.Exception: Method testValidationDefault should have no parameters is there any way to bypass it and set the i parameter in the @Rule?

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• How to convert an ArrayList containing Integers to primitive int array?

  - by Snehal

  I'm trying to convert an ArrayList containing Integer objects to primitive int[] with the following piece of code, but it is throwing compile time error. Is it possible to convert in Java? List<Integer> x = new ArrayList<Integer>(); int[] n = (int[])x.toArray(int[x.size()]);

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• Open source project. I want to participate in something

  - by user69514

  I am a senior in Computer Science. I want to be part of some open source project. I don't know what's available out there. Can anybody guide me? I'm good with Java, not that great with C and C++, but I know both. I also know some Cincom Smalltalk. Or if anyone has something good that they're working on I could help.

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• I am looking for some kind of code by Contracts that I can use with Eclipse

  - by devoured elysium

  I've tried before some Eclipse plugin (I don't remember its name) but it was lacking a lot of features (generics, for example). Is there anything easy to set up that would run on the last version of Java? Thanks

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• Secure WS client with UsernameToken(SOAP security header)

  - by user79163

  Hi, I'm trying to secure my WS client to be able to call the WS. My code looks like this: SendSmsService smsService = new SendSmsService(); SendSms sendSMS = smsService.getSendSms(); BindingProvider stub = (BindingProvider)sendSMS; //Override endpoint with local copy of wsdl. String URL ="";//here is the wsdl url Map<String,Object> requestContext = stub.getRequestContext(); requestContext.put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, URL); //Set usernametoken URL fileURL = loader.getResource("client-config.xml"); File file = new File(fileURL.getFile()); FileInputStream clientConfig = null; try { clientConfig = new FileInputStream(file); } catch (FileNotFoundException e) { e.printStackTrace(); } XWSSecurityConfiguration config = null; try { config = SecurityConfigurationFactory.newXWSSecurityConfiguration(clientConfig); } catch (Exception e) { e.printStackTrace(); log.warn("Exception: "+e.getMessage()); } requestContext.put(XWSSecurityConfiguration.MESSAGE_SECURITY_CONFIGURATION, config); //Invoke the web service String requestId = null; try { requestId = sendSMS.sendSms(addresses, senderName, charging, message, receiptRequest); } catch (PolicyException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ServiceException e) { // TODO Auto-generated catch block e.printStackTrace(); } and the config file looks like this: <xwss:JAXRPCSecurity xmlns:xwss="http://java.sun.com/xml/ns/xwss/config" optimize="true"> <xwss:Service> <xwss:SecurityConfiguration dumpMessages="true" xmlns:xwss="http://java.sun.com/xml/ns/xwss/config"> <xwss:UsernameToken name="username" password="password> </xwss:SecurityConfiguration> </xwss:Service> <xwss:SecurityEnvironmentHandler> util.SecurityEnvironmentHandler </xwss:SecurityEnvironmentHandler> </xwss:JAXRPCSecurity> The SecurityEnviromentHandler is a dummy class that implements javax.security.auth.callback.CallbackHandler. Authentication must be in compliance with Oasis Web Services Security Username Token Profile 1.0. But I'm constantly getting "Security header not valid" error. Where am I going wrong, can anyone tell me. I used wsimport(JAX_WS 2.1 to generate classes for my client) Note:Only thing I know about this WS is WSDL URL and user&pass for authentication

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• Alternative to JFileChooser on Linux?

  - by Martijn Courteaux

  I don't like this ugly FileChooser layout in Linux. This layout is used by any other program and is MUCH more beautiful. Is this layout available in Java? If so, how?

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• How to generate one jar with different executable classes in maven2?

  - by GuidoMB

  I have a big project that uses maven and I'm creating the project's jar. The problems is that the project has several classes that can be executed. How can I accomplish this? Every time that I try to execute a class I get this message java -jar library.jar ExecutableClass1 Failed to load Main-Class manifest attribute from library.jar

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• How can I use OpenOffice in server mode as a multithreaded service?

  - by user63898

  What is the experience of working with OpenOffice in server mode? I know OpenOffice is not multithreaded and now I need to use its services in our server. What can I do to overcome this problem? I'm using Java.

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• Hot to get the fields in an Object via reflection?

  - by Apps

  I have an object (basically a VO) in Java and I don't know its type. I need to get values which are not null in that object. How can this be done?

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• Build a road network out of shapefile coordinates

  - by Sameer

  I want to build a road network from the ESRI shapefiles. I am able to read the data from the .shp files but unable to proceed any further with building the road network out of the shapefile coordinates and display it on the screen. I am not that expirienced in Java. I would appreciate any kind of suggestions on how should i proceed now.

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• How do I combine/merge two wav files into one wav file?

  - by masterkapu

  How can I merge two wav files using java? I tried this but it didn't work correctly, is their any other way to do it?

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• Best way to package a class for use in another app?

  - by Brad Hein

  I've written an Android app wich various abstract classes that perform useful functions. These functions could be leveraged in other apps. I want to share a class module with another programmer, but I don't want to share the source code. I would like to share a .class file but I'm not sure how to do the following: Compile an Android .java file into .class What does the receiver of the .class file have to do to use that .class in their project? (using Eclipse environment) Thank you very much

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• How does polymorph ambiguity distinction work?

  - by Pentius

  Given I have a class with two constructors: public class TestClass { ObjectOne o1; ObjectTwo o2; public TestClass(ObjectOne o1) { // .. } public TestClass(ObjectTwo o2) { // .. } } What happens, if I call: new TestClass(null); How to determine the correct method to call? And who determines that? Are there differences between Java and other OOP languages?

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• How is the implementation of LinkedHashMap different from HashMap?

  - by Passionate programmer

  If LinkedHashMap's time complexity is same as HashMap's complexity why do we need HashMap? What are all the extra overhead LinkedHashMap has when compared to HashMap in Java?

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• Wicket @SpringBean doesn't create serializable proxy

  - by vinga

  @SpringBean PDLocalizerLogic loc; When using above I receive java.io.NotSerializableException. This is because loc is not serializable, but this shouldn't be problem because spring beans are a serializable proxies. On the page https://cwiki.apache.org/WICKET/spring.html#Spring-AnnotationbasedApproach is written: Using annotation-based approach, you should not worry about serialization/deserialization of the injected dependencies as this is handled automatically, the dependencies are represented by serializable proxies What am I doing wrong?

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