javapackages-tools/SOURCES/toolchains-openjdk8.xml

<toolchains>
  <toolchain>
    <type>jdk</type>
    <provides>
      <xmvn>xmvn</xmvn>
    </provides>
    <configuration>
      <jdkHome>/usr/lib/jvm/java-1.8.0-openjdk</jdkHome>
    </configuration>
  </toolchain>
</toolchains>