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Dears, I have a jersey - spring api deployed on apache tomcat 9.0.46. (Jersey to handle restful services JAX-RS and Spring to handle all my beans{controllers, DAO, SessionFactory, JPA etc...}). Everything works fine on tomcat 9 on windows... When deploying the exact same war in ubuntu tomcat 9.0.46, the ContextLoader is getting triggered 3 times and I have all my singletons instantiated 3 times. I'm deploying the api on tomcat ports 80 and 443 (https - godady certificate). once I start tomcat the war is deployed and ports 80 and 443 get started (netstat -tulnp | grep java) and I see in log all singletons instantiated. (pool-2) Applicationcontext class my custom spring @Configuration class and it is getting triggered and DB is accessed without any issues

this is my first time building a Jersey Restful web service.

The project is supposed to be a server that provides information about Reddit posts. For now, this information is stored in a large JSON file, and because it is not supposed to be manipulated, my idea is to store this information in the dao class in form of Post instances.

here is my projects' folder organisation: filesView

So my idea is to populate the dao class by reading the json file something like this:

I would like the last field to have 50px border radius on the right. Why is this not working?

I am currently doing an assignment for a class that requires me to develop a Maven project on eclipse that utilizes Dropwizard Authentication and Jersey HTTP. I looked everywhere on the internet for a solution, including stackoverflow. When I run the server on my local machine, it seems to run fine. But when I do the simple health check on http://localhost:8080/status, it gives me this error message.

My API method couldn't convert object to XML but it can converts to JSON. when the method return type is Collection (MAP) it converts to XML without any runtime exceptions (MessageBodyWriter not found) but when use Response as return type it causes the runtime exceptions. here I mention the codes. I think I don't have any issues in my code but problems on dependencies.

Below is an example of a df that contains three columns, each with multi-level categorical data. I want to calculate some descriptive statistics across the three columns per level within the column - for instance the number of people per age group in each location and status, including counts, proportions, and standard deviations (which i suppose should actually be a confidence interval here). But I am not sure how to do it in an elegant way. Any advice is really appreciated, thanks so much

I have a webapp that runs fine in JBoss EAP 6.4. I want to add some functionality to my webapp so that it can process Parquet files that reside in AzureBlob storage. I add a single dependency to my pom.xml:

I am new to web services. have developed a simple rest web svc in java using Eclipse, Tomcat following this link. Application successfully runs on Tomcat but when i deploy it to IBM WebSphere 8.5.5. It deploys successfully but fails to start. I know its something with my Web.xml so i am adding it for rectification. Tried this but to no avail.

I am use the proxy pattern to call web services using JAX-RS and Jersey. I would like to conceptually do something like... add @Context annotation to the interface like: