Convert JSON payload to xml with SpringBoot

I have a controller action written using SpringBoot that handles POST requests for /greeting and returns a String response. My intention is to convert the json payload to xml and eventually hit another webservice with an xml payload. I tried the foll...
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2017-04-20 21:04 (3) Answers

How bit manipulation works?

There was a question asked: "Presented with the integer n, find the 0-based position of the second rightmost zero bit in its binary representation (it is guaranteed that such a bit exists), counting from right to left. Return the value o...
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2017-04-20 07:04 (1) Answers

Retrofit says auth token exists when logged out

When I log into my account in my app, I save an auth token in my SharedPreferences, like this: PreferenceUtils.setAuthToken(LoginActivity.this, authToken); Here is my PreferenceUtils class: public class PreferenceUtils { public static SharedP...
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2017-04-20 02:04 (2) Answers

What is lub(null, Double)?

Table 15.25-B in JLS version 8 says that the type of a conditional expression true ? null : 0.0 is lub(null,Double), where lub appears to be some crazy incomprehensible thing from section 4.10.4. This appears to be distinct from the Double type s...
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2017-04-19 23:04 (2) Answers

Combine integers into a long

I need to somehow concatenate a series of 8 integers into a single long in Java. The values of the integers are between 0-255. They have to be combined in this manner: Lets say we got this sample of integers (in binary): 00000000 00000000 00000000 1...
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2017-04-19 20:04 (3) Answers

Java ME SDK not recognized by Netbeans/Eclipse

I'm currently trying to use the Java ME platform for a project. However, I've spent several days trying to integrate the Java ME SDK with an IDE. I've downloaded/installed: Java JDK Both Netbeans/Eclipse, their respective Java ME plugins. Java M...
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2017-04-19 18:04 (2) Answers

Parse Json Java

I have a very weird json response in the following format (with many more attributes): { "foo": [ { "key": "name", "value": "Hans" }, { "key": "lastName", "value": "Peter" ...
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2017-04-19 18:04 (1) Answers

Make a configuration field required in Dropwizard

In a Configuration class for Dropwizard, if my yml file is missing a field, Dropwizard does not log anything nor throws any errors/exceptions. How can I make it throw an error and fail to start if the configuration file is missing a required configu...
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2017-04-19 02:04 (1) Answers

Exporting Tiled maps on Eclipse with Libgdx

i'm having some problems loading the levels of a project i'm doing. I already put the .tmx files and the .png images from the level on the "Assets" folder but i keep having this error: Exception in thread "LWJGL Application" com.badlogic.gdx.utils.G...
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2017-04-19 00:04 (1) Answers