Freaks City

Most developers use Tomcat daily, but few understand the execution strategy behind its thread pool. This article explores how Tomcat's thread pool differs from the standard JDK implementation, diving into the mechanism that allows Tomcat to utilize maximum threads before queuing tasks. The JDK ThreadPoolExecutor Behavior Before examining Tomcat ...

404 Error Troubleshooting Common causes for 404 errors include incorrect context path configuration or mismatched servlet mappings. The correct URL format must follow http://host:port/context-root/servlet-path. Deployment issues may stem from malformed web.xml files, improper directory structures, or incorrect server deployment. Ensure the proj ...

Tomcat In-Memory Shells Servlet fundamentals are essential for understanding this topic. This section explores three types of in-memory shells: Filter-Based Implemantation Filters intercept requests before reaching servlets. This example demonstrates a basic filter: public class ExampleFilter implements Filter { public void init(FilterConfi ...

Tomcat uses custom class loaders for several core technical reasons: Application Isolation: As a web container, Tomcat can run multiple web applications simultaneously. Different apps may depend on conflicting libray versions or have classes with identical fully qualified names. To prevent class conflicts and keep each application's classpath ...

Servlet Lifecycle Overview In this article, we will explore the complete lifecycle of a Servlet object in Java web applications. Understanding how Servlets are created, executed, and destroyed is fundamental to building robust web applications. What is Servlet Lifecycle? The Servlet lifecycle refers to the complete journey of a Servlet object f ...

Environment and Nginx Installation Assume a CentOS 7 environment targeting Nginx 1.18+. Begin by configuring the official package repository and installing the binary. Ensure the http_ssl_module is compiled into the binary, as it is mandatory for TLS termination. # Install repository management utility yum install -y yum-utils # Create reposit ...

This guide details the steps for configuring the local development environment for Primate EOS, a low-code development platform. The instructions focus on database configuration and initial service startup. Key Primate EOS Modules BPS: Business Process Suite for workflow management. Coframe: Handles login authentication and authorization. Gove ...

System Requirements GitLab Version: 13.1.11 PlantUML Version: 1.2023.10 Graphviz Version: 8.1.0 Deployment Architecture PlantUML is deployed separately from GitLab on Anolis OS 7.9. The PlantUML server is compiled from source into a WAR package and deployed using Tomcat 10 with Oracle JDK 11.0.6. Graphviz is compiled and installed from source ...

Configuring Maven for WAR Output Modify the build configuration to change the artifact type. Set the packaging element to war within the POM. <project> <groupId>com.example</groupId> <artifactId>enterprise-app</artifactId> <version>1.0.0</version> <packaging>war</packaging> ...

CentOS 7 Base ImageNetwork restrictions and misaligned configurations in public repositories make custom base images essential for streamlined workflows. Four configuration assets are required for this build.[root@host centos7]$ ls custom-epel.repo custom-base.repo Dockerfile supervisord.cfg DockerfileFROM centos:7.9.2009 LABEL maintainer="D ...