I’m using parseq framework for asynchronous computation. Consider the following code. It first queries the content of google.com and then map the content to it’s length. Finally, the length is printed. The problem is that only the first task is ran. Why? Answer I was able to solve your problem wit…
Spring Boot Error @Autowired RestTemplateBuilder with junit
Trying to @Autowired a RestTemplate in Spring Boot 2.1.4 using RestTemplateBuilder. When i run junit tests i get an error when trying to autowired RestTemplate. I saw here: How to autowire RestTemplate using annotations It seems that RestTemplateBuilder is better so i would like to use that. This is the confi…
Cannot find symbol error in android studio
I’m trying to add fragments to a navigation drawer. But I have the error: cannot find symbol class Fragment. I added: import android.support.v4.app.Fragment Also add the fragment object(Fragment fragment) Where is the mistake? What should I do? Home.java build.grandle I’ve tried to search the web …
Could not find method compileOptions() for arguments
The error appears: Could not find method compileOptions() for arguments [build_88ddjipq2tquhqjwgj0asxwi4$_run_closure3@5ddee9dd] on project ‘:app’ of type org.gradle.api.Project. Answer Put compileOptions inside android tag like this : EDIT: To be exact
Does hibernate SessionFactory.openSession() wait for a database connection to be available from pool
Does hibernate SessionFactory.openSession() wait for a database connection to be available from pool ? I assumed it did, but I have customer with this exception org.hibernate.exception….
how to clear contents of ServletOutputStream?
I’m wondering how to delete all contents from ServletOutputStream (or any other OutputStream) in case when exception is occurred at some point and I need outputStream to be empty so that it doesn’t …
Reading a JsonFile to an ArrayList
I have an assingment to create something on the lines of a quiz. The teacher gave us all the interfaces for the Questions and the Test and even the “graphic layer” to display the quiz. I created two classes for the Test and Question interfaces. The test class has a listArray of Questions objects a…
How to extract claims from Spring Security OAuth2 Boot in the Resource Server?
I have an Authorization Server built in .Net Core Using Identity Server 4! It is working as expected to authorize clients and resources from Node Js and .Net. Now I’m trying to add a Java spring Boot 2 API (jdk 1.8) as a Protected Resource. I have achieved that goal by using the OAuth2 Boot Documentatio…
Guice -How to inject dependency inside the class which is extending Abstract module – Java
I have to trigger TestDriver.startPoller() from EnvironmentModule since EnvironmentModule is extending from Abstractmodule I am not sure how to inject dependency inside EnvironmentModule is it even …
Does Lombok toBuilder() method creates deep copy of fields
I am using toBuilder() on an object instance to create a builder instance and then build method to create new instance. The original object has a list, does the new object has reference to same list or a copy of it? Will lib2 books refer to same list as lib1 books ? Answer Yes, the @Builder(toBuilder=true) an…