https://issues.apache.org/jira/browse/MCOMPILER-174
                    (Compare what guava-gwt has to do for maven-javadoc-plugin.)
                -->
                <arg>-sourcepath</arg>
                <arg>doesnotexist</arg>
              </compilerArgs>
            </configuration>
          </execution>
          <execution>
            <id>compile-java9</id>
            <goals>

                the base compiler settings (in the root `pom.xml`) to enable MRJAR output.
              -->
              <compilerArgs combine.self="override">
                <arg>-sourcepath</arg>
                <arg>${project.basedir}/src</arg>
                <arg>--add-reads=com.google.common=ALL-UNNAMED</arg>
                <arg>--add-reads=com.google.common.testlib=ALL-UNNAMED</arg>

                the base compiler settings (in the root `pom.xml`) to enable MRJAR output.
              -->
              <compilerArgs combine.self="override">
                <arg>-sourcepath</arg>
                <arg>${project.basedir}/src</arg>
                <arg>--add-reads=com.google.common=ALL-UNNAMED</arg>
                <arg>--add-reads=com.google.common.testlib=ALL-UNNAMED</arg>

                base compile settings (in the root `pom.xml`) to enable MRJAR output.
              -->
              <compilerArgs combine.self="override">
                <arg>-sourcepath</arg>
                <arg>${project.basedir}/src</arg>
                <arg>--add-reads=com.google.common=ALL-UNNAMED</arg>
                <!-- https://errorprone.info/docs/installation#maven -->

        byte[] sourceData = { 1, 2, 3, 4, 5 };
        byte[] buffer = new byte[10];
        System.arraycopy(sourceData, 0, buffer, 2, sourceData.length);

        int result = smallResponse.readDataWireFormat(buffer, 2, sourceData.length);

        assertEquals(sourceData.length, result);
        assertArrayEquals(sourceData, smallOutputBuffer);
    }

    @Test

    private static final long serialVersionUID = 1L;

    @Override
    protected ObjectiveProperties newObjectiveProperties(final String resourcePath, final PropertyFilter propertyFilter) {
        return new ObjectiveProperties(resourcePath) { // for e.g. checking existence and filtering value
            Cache<String, String> cache = CacheBuilder.newBuilder().build();

            @Override

                final String filePath = FileUtil.getCanonicalPath(file);
                final String resourcePath = filePath.substring(pos + 1).replace('\\', '/');
                final InputStream is = InputStreamUtil.create(file);
                try {
                    handler.processResource(resourcePath, is);
                } finally {
                    CloseableUtil.close(is);
                }
            }