oracle offers a comprehensive and fully integrated stack of cloud applications and cloud platform services.

adoptopenjdk provides prebuilt openjdk binaries from a fully open source set of build scripts and infrastructure. supported platforms include linux, macos, windows, arm, solaris, and aix.

openjdk

openlogic delivers comprehensive open source services, including mission-critical support, ready-to-go solution stacks, design guidance, and training. by engaging openlogic, global organizations can quickly adopt the right open source technologies to drive innovation, boost efficiency, and improve agility.

java programming tutorials, articles, tips, tricks, code examples and sample projects: core java, exception handling, collections, concurrency, jdbc, swing, graphics, file io, servlet, jsp, javamail, jstl, web services, jpa, networking, spring, struts, hibernate, eclipse, netbeans, tomcat.

sourceforge provides free & fast open source software downloads and development, and business software reviews and comparisons featuring the largest open source and business software directory.

in-depth, to-the-point tutorials on java, spring, spring boot, security, and rest.

the eclipse foundation provides our global community of individuals and organizations with a mature, scalable, and business-friendly environment for open source …

jetbrains is a cutting-edge software vendor specializing in the creation of intelligent development tools, including intellij idea – the leading java ide, and the kotlin programming language.

bellsoft — a leading openjdk contributor providing security, progressive java runtime and special tools for java apps for modern architectures and cloud