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I am migrating an application to Liberty. The application is servlet-based and uses JSP files. I have created Dockerfiles, a Helm chart, and Liberty configuration files such as server.xml. My ...
Advice
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Suppose I want to create a simple counter app with three different servlets: one to read the value (GET), one to increment and one to decrement the value (both POST): readvalue.java: @WebServlet("...
bui3's user avatar
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Advice
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8 replies
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<img src="images/logo.png"> I created a web project using HTML and Servlets (no JSP). When I open the HTML file directly using "Open in Browser," the image displays correctly. But when ...
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60 views

So basically I have put up my backend on Render web Service (on tomcat) and my frontend(Nextjs) is on Vercel. I have put up a Filter for Cors Policy to intercept all policies and as well as handled ...
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1 answer
74 views

I have a Jersey servlet project, where I organize the depencies with maven. It runs in Tomcat. Update of slf4j-api Now I am trying to use <artifactId>slf4j-api</artifactId><version>2....
BairDev's user avatar
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2 votes
0 answers
80 views

I have inherited some JAX-RS code with a logout function that appears to be properly "logging out" the user by redirecting to the login page, invalidating the session, and expiring the ...
1 vote
1 answer
99 views

I want to be able to capture HTML content and then set a header about that content using servlet filter. I Can capture the content but I always get an error that the response has already been ...
1 vote
1 answer
106 views

When I tried doing research on this, everything I found was how to debug an application running under Tomcat. I'm trying to debug Tomcat itself, because something strange is happening that I can't ...
2 votes
1 answer
220 views

I manage a Tomcat/JSP webapp. We are updating our source code to conform to the recent javax -> jakarta namespace change in the Servlet package. The app uses the Apache Commons FileUpload package, ...
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0 answers
50 views

1. System Setup Framework: Spring Boot REST API (servlet-based). Global Exception Handler: Uses @RestControllerAdvice to catch MyOperationException. Returns a ResponseEntity with HTTP 400 and a ...
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1 answer
133 views

I have an older Java/JSP application that I have to update to Tomcat 10 by May 31, 2025. This change in Tomcat versions covers Java's recent javax -> jakarta API namespace change in the packages ...
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1 answer
52 views

I'm building an Expense Tracker web app using Java Servlets and MongoDB. I want to filter expense documents based on user and category (e.g., user: "chir", category: "education"). ...
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1 answer
121 views

Summary We're seeing an intermittent IllegalArgumentException during HTTP response serialization using Spring Boot 3.4.2 on Kubernetes. The exact same image sometimes works perfectly, and other times ...
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105 views

I'm developing a Spring Boot application (with Spring Security) and need to add default headers (specifically, Content-Type and Content-Length) to requests targeting the endpoint /api/v1/mpos/set-...
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71 views

I am trying to run a page using Vaadin 23, but I get index.html on any url My project uses: java version=17 spring-mvc version=5.3.20 apache tomcat version=8.5.85 But as a dependency manager on the ...

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