Java SE CPU releases are odd numbered versions (i.e.

Oracle strongly recommends that all Java SE users upgrade to the latest CPU releases as they are made available. Java SE Critical Patch Updates (CPU) contain fixes to security vulnerabilities and critical bug fixes. What is the difference between a Java CPU and PSU release? For this reason, organizations should test the current PSU in their environment in anticipation of these fixes being included in the next CPU. The subsequent CPU release will contain all of the fixes from the current PSU. Users should only use the corresponding PSU release if they are being impacted by one of the additional bugs fixed in that version as noted in the release notes. Most users should choose the CPU release. Oracle strongly recommends that all Java SE users upgrade to the latest CPU release available for a release family. Which Java version should I choose: the CPU or the PSU? There is also a known bug in 8u101 which is resolved in 8u102. This is a Critical Patch Update (CPU).Ĩu102 contains the security updates and new features. It consists of a Java Virtual Machine and all of the class libraries present in the production environment, as well as additional libraries only useful to developers, and such as the internationalization libraries and the IDL libraries.Are there any noticeable differences in them?Ĩu101 contains security updates. The JDK also comes with a complete Java Runtime Environment, usually called a private runtime. This tool also helps manage JAR files, javadoc - the documentation generator, which automatically generates documentation from source code comments, jdb - the debugger, jps - the process status tool, which displays process information for current Java processes, javap - the class file disassembler, and so many other components. JDK has as its primary components a collection of programming tools, including javac, jar, and the archiver, which packages related class libraries into a single JAR file.

Java Development Kit contains the software and tools that you need to compile, debug, and run applets and applications that you've written using the Java programming language.

Java se development kit 8u101 vs 8u102