Google HTTP Client Library for Java. Functionality that works on all supported Java platforms,

The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.

The Apache Commons IO library contains utility classes, stream implementations, file filters,

Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are ...

API for Jakarta Servlet, enabling web applications to handle HTTP requests and responses through a standard interface ...

Apache CXF JAX-RS Client

Apache HttpComponents HTTP/1.1 core components

Apache HttpComponents Client

OSGi Core Release 8, Interfaces and Classes for use in compiling bundles

API for SLF4J (The Simple Logging Facade for Java) which serves as a simple facade or abstraction for various logging ...

Extensions to the SLF4J API

Basic building block for Spring that in conjunction with Spring Beans provides dependency injection and IoC features.

Apache XML Security for Java supports XML-Signature Syntax and Processing,