I am trying to make simple GET request using groovy HTTP request. I am expecting JSON response in this form: So far I have done this in my code: and I am always getting this response: I have googled and found out that it’s problem related to groovy and this problem was not occurring before version 2.3.0, like this post
Why am I getting “classes must have either one (and only one) constructor” error?
I have been trying to get Guice working but end up with this: Classes must have either one (and only one) constructor My interface: The implementation: The binding module: The AddrBook client where I am injecting: And my main: After all this, I’m getting this error: I have experience with Spring and not with Guice. Where am I going wrong
Java instance for comparable
Why is it legal to create new Box(); and new Box<Integer>();? Is it because Box is comparable? Answer You have declared the class with a generic type parameter. This is not the same as implementing the Comparable interface: Is the same as: Which is not the same as: Because the type parameter is unbounded, it will accept any type. So
How to return when an optional is empty?
I love that optionals are in the Java standard library now. But there is one basic problem that I keep running into that I haven’t figured out how to solve in the best way (easiest to read and understand, prettiest, shortest): How to return from a method when an optional is empty? I am looking for a general solution that
Spring cloud : Can not get Feign client to work with consul
I am trying to set up a simple spring cloud consul app. I have a “distribution” service up and registered in consul (with the spring.application.name property set to “distribution”) I have an “acquisition” service that is trying to make a call to the “distribution” service using feign. Here is my main class here is my feign client and here is
Draw an ASCII diamond in a frame
I am trying to draw out a diamond in a frame. I figured my way through the top half, but when I come to the 2nd half I had attempted to invert the loops and problems came up. I played around switching operators just to see the result, but still nothing works. Please help. What am I not seeing. Answer
`Type cannot be null` exception when trying to run out Stored Procedure using Spring Data JPA
I am trying to invoke a Stored Procedure whose signature looks like the following: I am using Spring-Data JPA and have tried a number of different variants, but all of them follow more or less the following pattern. My entity model is decorated as follows: Then I have my repository which looks like the following: I have followed the instructions
DBUnit PostgresqlDataTypeFactory does not recognizes enum list
I’m using DBUnit for an integration test, and before executing the test code I’m running into this error: the column that is ignored is a list of enums. In the dataset it’s written like this : I looked in the DBUnit FAQ and saw this issue , that says that I have to override the isEnumType() method to support my
Behavior of costructors in sub classes in Java
let’s say I have the following code: What are the outputs when I try to execute I thought it would first call the constructor of B and the constructor of B will call the constructor of A but the I don’t know which between “creating A” or “Hi” message will be shown first. The first thing invoked on a class
Force Java Android Socket to Send Data Immediately
As a hobby project, I’m writing an android voip client. When writing voice data to the socket (Vars.mediaSocket), many times, the data isn’t immediately sent out over the wifi but just stalls and then all at once it will send 20 seconds worth of voice. Then it will stall again and wait for 30 seconds and then send 30 seconds