SHA (Secure Hash Algorithm) is a family of digest algorithms (i.e. cryptographic hashes), i.e. checksum functions that are hard to forge. The recommended digest algorithms these days are SHA-1 and SHA-2 (which covers both SHA-256 and SHA-512). MD5 is a deprecated alternative.

The ref keyword causes an argument to be passed by reference, not by value. The effect of passing by reference is that any change to the parameter in the method is reflected in the underlying argument variable in the calling method. The value of a reference parameter is always the same as the value of the underlying argument variable.

GXT, also known as Ext GWT, is a dual licensed component framework that seeks to provide similar functionality to ExtJs for Google Web Toolkit (GWT) applications.

The Surefire Plugin is used during the test phase of the build lifecycle to execute the unit tests of an application. It is commonly used in continuous integration.

The mainframe tag refers to the class of "big iron" computers, primarily those from IBM. Currently this is limited to the IBM Z hardware, typically running z/OS, z/VM, z/VSE, z/TPF, or a distribution of Linux on IBM Z as its operating system.

For questions related to a single-line, text input. EG: `<input type="text" ...>`, or a UITextField, or TextInput (Flash), or `<textinput>` (RSS). ... Use textarea for multiline or WYSIWYG text controls.

SCons is a cross platform, open source build tool and an alternative to the classic "Make". It works based on a declarative description of a build, using the Python programming language.

Obtains a local copy of a remote Git repository.

HikariCP is a high-performance JDBC connection pool library.

DST is the tag for Daylight Saving Time issues. DST, also known as summer time, starts when a time zone shifts its clocks forward (in the spring), and ends when the clocks shift back (in the fall).

This tag is for the game of Chess and problems getting computers to play it.