I try make it with use this code, but I get WrappedArray How make it correctly? Answer You can use getList method: where lemmas is the name of the column with lemmatized text. If there is only one column (it looks like this is the case) you can skip select. If you know the index of the column you can
Java: FasterXML / jackson deserialize array without keys
Is there a way how to deserialize JSON array into following Java class using FasterXML jackson-databind? I only found answers where there are key: value items in the array. Answer Firstly {[“a”, “b”, 1]} is not a Valid Json Array (or JSON) …. JSON Array would look like this [“a”, “b”, 1] Also you could deserialize the Json Array into
ConfigurationProperties does not bind properties
I want to bind my application.properties into a class automatically by using @ConfigurationProperties annotation. First, I tried with @Value annotation and was able to inject property values into class variables. However, @ConfigurationProperties did not inject properties into values. my application.properties: application.java ConfigBinder.java output: What is the wrong with this implementation? edit and solution: possible duplication: Spring Boot @ConfigurationProperties not retrieving
How to return a set of objects with Spring Boot?
I did a lesson about Spring Boot and it works perfectly. But what if I want to return a set of objects ? I tried doing this but it doesn’t work. How can I do it correctly ? With one object (it works): With many objects (it doesn’t work): Answer If you compare your original method to your newly made
How would I get only IPv4 addresses
I have the following code which is supposed to get only the IPv4 addresses of all active interfaces, but it still returns an IPv6 address on some computers. I’ve tried to specify using only IPv4 by using System.setProperty(“java.net.preferIPv4Stack” , “true”);, but this only causes getIpAddress() to return an empty list. How should I be getting the IPv4 of active interfaces
Is there way to mock pojo other then setting values manually in mockito?
consider a method returns class A in my service, My pojo class so in test case ,i wrote as Here everything is working fine .Code coverage is also fine.But my question is ,is there any possible way to avoid above private method that returns class A by using mockito ? Answer in a unittest you define the behavior of your
Regex Pattern with Unicode doesn’t do case folding
In C# it appears that Grüsse and Grüße are considered equal in most circumstances as is explained by this nice webpage. I’m trying to find a similar behavior in Java – obviously not in java.lang.String. I thought I was in luck with java.regex.Pattern in combination with Pattern.UNICODE_CASE. The Javadoc says: UNICODE_CASE enables Unicode-aware case folding. When this flag is specified
Radiobutton display problems with PDFBox
I used the code from the answer from this question to create my radiobuttons: How to Create a Radio Button Group with PDFBox 2.0 After I created my PDF and tried to read the (programatically) selected value from it, this code worked fine: When I open the PDF in Acrobat Reader DC, make changes and save it again the code
Method invocation ‘toString’ may produce ‘java.lang.NullPointerException’?
When I start the application, everything works normal, but when I press the button enter, it closes alone. I do not know what could be the problem I think this is it, could you please help me I have this code Method invocation ‘toString’ may produce ‘java.lan.NullPointerException’ Can you help me? Please Answer you can replace StringBuilder resul=null; with StringBuilder
android.support.v7.widget.AppCompatButton cannot be cast to android.widget.LinearLayout
I’m developing an app and I had some errors. When I run on the tablet it gives this error, but when I go to mobile it works perfectly. I already tried to clean and rebuild and tried to reboot the computer but I’m still having errors. See the code below: XML And the others linearlayout is the same, the error