java-jwt | java-token authentication login | Frontend Utils library

I've searched Stack and google looking for an answer to no luck. So I'm hoping someone can help me here.

I have a Spring Boot API which is currently using Tomcat, now I've read about some of the performance improvements in Undertow so I wanted to give it a go and see for myself.

Now, I've removed my spring-boot-web-starter dependancy and added undertow however I'm getting the following errors in a few classes and I can't seem to find how to resolve them:

I've a Spring Web application that I'm writing, and I'm attempting to implement a middleware to handle authentication using JWTs. I've set up a configuration component to pull the configuration from my application.yml file to be used in the middleware, but it's pulling only nulls and 0s. I've tried multiple different configurations to get this, but I can't figure out what I'm doing wrong, since the application is correctly pulling the spring configuration from the application.yml file.

Here is the stacktrace:

Java 8, Spring Boot 2.3.8 and Gradle 6.7 here, and the last time I used Gradle it was on 4.x.

I created a new Java application using Gradle via:

so I have a simple project like:

I am deploying Spring Boot App on Jenkins port 8081. I have tomcat running on port 5050. When I deploy the App it shows a Success message but when I navigate to localhost:5050/{given context name} it shows me a 404 Not found message. I have also tried using the embedded way it doesn't work if there is any way for deploying with embedded tomcat that will be more good

pom.xml

As the title suggests, I met the StackOverFlow problem when I connect to Neo4j in Springboot with Mybatis. The CQL runs well in Neo4j desktop, but the api returns a 500 result with the same CQL in mapper.

The error message goes like:

I am attempting to use kotlinx.serialization in a multiplatform (JVM/JS) project.

When I add @Serializable annotation to some data classes in some class in common module:

I am building a Spring Boot web application that uses MongoDB as a data store. I am communicating directly to the live cluster (not a local cluster) using a MongoDB URI. I am using Java 11 (AdoptOpenJDK 11.0.5).

On application startup, my application is unable to communicate to MongoDB cluster due to what looks like a TLS/SSL error:

I demonstrate asynchronous process in REST API using javax(2.26 version). When I tried I got"A filter or servlet of the current chain does not support asynchronous operations." I don't know what to do with that. I tried many ways but doesn't work out.

The below is the resource file Resource.java