return new InnerInterpolator() {
            @Override
            public String interpolate(String value) {
                if (value != null && value.contains("${")) {
                    String c = cache.get(value);
                    if (c == null) {
                        try {
                            c = interpolator.interpolate(value, recursionInterceptor);

     * @throws NullPointerException if {@code element} is null
     */
    @Override
    @CanIgnoreReturnValue
    public Builder<E> add(E element) {
      checkNotNull(element);
      if (hashTable != null && chooseTableSize(size) <= hashTable.length) {
        addDeduping(element);
        return this;
      } else {
        hashTable = null;
        super.add(element);
        return this;
      }

        // Test constructor with null message
        GsaConfigException exception = new GsaConfigException(null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructorWithNullMessageAndCause() {
        // Test constructor with null message and null cause

            xml.append("    </parent>\n");
        }

        if (groupId != null) {
            xml.append("    <groupId>").append(groupId).append("</groupId>\n");
        }
        if (artifactId != null) {
            xml.append("    <artifactId>").append(artifactId).append("</artifactId>\n");
        }
        if (version != null) {
            xml.append("    <version>").append(version).append("</version>\n");
        }

     * @param coordinates array of {@link ArtifactCoordinates}
     * @return {@link ArtifactResolverResult}
     * @throws ArtifactResolverException in case of an error.
     * @throws IllegalArgumentException in case of parameter {@code buildingRequest} is {@code null} or
     *             parameter {@code coordinates} is {@code null} or invalid
     */

        int exitCode = new MavenCling().run(args, null, null, null, false);
        System.exit(exitCode);
    }

    /**
     * ClassWorld Launcher "enhanced" entry point: returning exitCode and accepts Class World.
     */
    public static int main(String[] args, ClassWorld world) throws IOException {
        return new MavenCling(world).run(args, null, null, null, false);
    }

    /**

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.
     * @param time The build time of the project in milliseconds.
     * @param cause The cause of the build failure, may be {@code null}.
     */
    public BuildFailure(MavenProject project, long time, Throwable cause) {
        this(project, Duration.ofMillis(time), cause);
    }

      if (lhs == rhs) {
        return 0;
      }
      if (lhs == null) {
        // lhs (null) comes just before justAfterNull.
        // If rhs is b, lhs comes first.
        if (rhs.equals(justAfterNull)) {
          return -1;
        }
        return justAfterNull.compareTo(rhs);
      }
      if (rhs == null) {
        // rhs (null) comes just before justAfterNull.
        // If lhs is b, rhs comes first.

        buf.append(methodName).append("(");
        if (methodArgs != null && methodArgs.length > 0) {
            for (final Object arg : methodArgs) {
                buf.append(arg == null ? null : arg.getClass().getName()).append(", ");
            }
            buf.setLength(buf.length() - 2);
        }
        buf.append(")");
        return buf.toString();
    }

    /**

    }

    // Test with null configuration values
    @Test
    public void test_withNullConfigValues() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getCookieDefaultPath() {
                return null;
            }

            @Override