1.0.0+ The {@code <toolchains>} element is the root of the descriptor. The following table lists all the possible child elements. 1.0.0+ The {@code <toolchains>} element is the root of the descriptor. The following table lists all the possible child elements. 1.0.0+ The toolchain instance definition. 1.0.0+ Definition of a toolchain instance. 1.0.0+ Type of toolchain:<ul> <li>{@code jdk} for <a href="https://maven.apache.org/plugins/maven-toolchains-plugin/toolchains/jdk.html">JDK Standard Toolchain</a>,</li> <li>other value for <a href="https://maven.apache.org/plugins/maven-toolchains-plugin/toolchains/custom.html">Custom Toolchain</a></li> </ul> 1.1.0+ Toolchain identification information, which will be matched against project requirements. <p>Each toolchain defines its own properties names and semantics. 1.0.0+ Toolchain configuration information, like location or any information that is to be retrieved. <p>Actual content structure is completely open: each toolchain type will define its own format and semantics. <p>In general, this is a properties format: {@code <name>value</name>} with per-toolchain defined properties names.