envVarMap.put("testSpecialCharactersKey", "<test&Value>");
        OperatingSystemUtils.setEnvVarSource(new TestEnvVarSource(envVarMap));

        toolchainBuilder = new DefaultToolchainsBuilder(
                new org.apache.maven.internal.impl.DefaultToolchainsBuilder(
                        new DefaultInterpolator(), toolchainsXmlFactory),
                toolchainsXmlFactory);
    }

    @Test

              <exclude>org.apache.maven.settings.DefaultMavenSettingsBuilder</exclude>
              <exclude>org.apache.maven.settings.MavenSettingsBuilder</exclude>
              <exclude>org.apache.maven.toolchain.DefaultToolchainsBuilder</exclude>
              <exclude>org.apache.maven.toolchain.ToolchainsBuilder</exclude>
            </excludes>
          </parameter>
        </configuration>
      </plugin>
    </plugins>
  </build>