try {
            return CommonsCliEncryptOptions.parse(context.parserRequest.args().toArray(new String[0]));
        } catch (ParseException e) {
            throw new IllegalArgumentException("Failed to parse command line options: " + e.getMessage(), e);
        }
    }

        try {
            return CommonsCliShellOptions.parse(context.parserRequest.args().toArray(new String[0]));
        } catch (ParseException e) {
            throw new IllegalArgumentException("Failed to parse command line options: " + e.getMessage(), e);
        }
    }

            aClass = Class.forName(type);
            if (DefaultTask.class.isAssignableFrom(aClass) == false) {
                throw new IllegalArgumentException("Not a task type: " + type);
            }
        } catch (ClassNotFoundException e) {
            throw new IllegalArgumentException("No such task: " + type);
        }
        return (Class<? extends DefaultTask>) aClass;
    }

    public Builder() {
      this.entries = new ArrayList<>();
    }

    /**
     * Associates the specified range with the specified value.
     *
     * @throws IllegalArgumentException if {@code range} is empty
     */
    @CanIgnoreReturnValue
    public Builder<K, V> put(Range<K> range, V value) {
      checkNotNull(range);
      checkNotNull(value);

 * java.util.ServiceLoader} mechanism.
 */
@GwtIncompatible
interface PatternCompiler {
  /**
   * Compiles the given pattern.
   *
   * @throws IllegalArgumentException if the pattern is invalid
   */
  @RestrictedApi(
      explanation = "PatternCompiler is an implementation detail of com.google.common.base",
      allowedOnPath = ".*/com/google/common/base/.*")

 * java.util.ServiceLoader} mechanism.
 */
@GwtIncompatible
interface PatternCompiler {
  /**
   * Compiles the given pattern.
   *
   * @throws IllegalArgumentException if the pattern is invalid
   */
  @RestrictedApi(
      explanation = "PatternCompiler is an implementation detail of com.google.common.base",
      allowedOnPath = ".*/com/google/common/base/.*")

    testEncodes(base32().withSeparator("*", 4), "foobar", "MZXW*6YTB*OI==*====");
  }

  public void testSeparatorSameAsPadChar() {
    assertThrows(IllegalArgumentException.class, () -> base64().withSeparator("=", 3));

    assertThrows(
        IllegalArgumentException.class, () -> base64().withPadChar('#').withSeparator("!#!", 3));
  }

  public void testAtMostOneSeparator() {

                throw new RuntimeException("Test encode error");
            }
            if (dst == null) {
                throw new IllegalArgumentException("Destination buffer cannot be null");
            }
            if (dstIndex < 0) {
                throw new IllegalArgumentException("Destination index cannot be negative");
            }
            if (dstIndex + encodedSize > dst.length) {

   * avoids the need for expensive resizing operations later, but setting this value unnecessarily
   * high wastes memory.
   *
   * @return this {@code CacheBuilder} instance (for chaining)
   * @throws IllegalArgumentException if {@code initialCapacity} is negative
   * @throws IllegalStateException if an initial capacity was already set
   */
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> initialCapacity(int initialCapacity) {

     * @param scriptEngine The script engine.
     */
    public void add(final String name, final ScriptEngine scriptEngine) {
        if (name == null || scriptEngine == null) {
            throw new IllegalArgumentException(
                    "Both name and scriptEngine parameters are required. name: " + name + ", scriptEngine: " + scriptEngine);
        }
        if (logger.isDebugEnabled()) {