Set<BsUser> set = new HashSet<>();
        set.add(entity1);
        set.add(entity2);
        RenderDataUtil.register(data, "set", set);

        Object setResult = data.getDataMap().get("set");
        assertNotNull(setResult);
        assertTrue(setResult instanceof List);
    }

    // Test helper class
    public static class ComplexObject {
        private String value;

        public String getValue() {

    assertThat(getResponse(methodName).getResult()).isNull();
  }

  /**
   * Asserts that a prior call that had caused this thread to block or wait has since returned the
   * expected boolean value.
   */
  public void assertPriorCallReturns(boolean expected, @Nullable String methodName)
      throws Exception {
    assertEquals(expected, getResponse(methodName).getResult());
  }

  /**

    assertThat(getResponse(methodName).getResult()).isNull();
  }

  /**
   * Asserts that a prior call that had caused this thread to block or wait has since returned the
   * expected boolean value.
   */
  public void assertPriorCallReturns(boolean expected, @Nullable String methodName)
      throws Exception {
    assertEquals(expected, getResponse(methodName).getResult());
  }

  /**

            }
            return true;
          }

          @Override
          public List<String> getResult() {
            return collector;
          }
        };
    Files.readLines(temp, UTF_8, collectNonEmptyLines);
    assertThat(collectNonEmptyLines.getResult()).containsExactly("hello", " world  ").inOrder();

    assertTrue(temp.delete());
  }

              public boolean processLine(String line) throws IOException {
                list.add(line);
                return true;
              }

              @Override
              public List<String> getResult() {
                return list;
              }
            });

    assertExpectedLines(list);
  }

  public void testReadLines_withProcessor_stopsOnFalse() throws IOException {

              public boolean processLine(String line) throws IOException {
                list.add(line);
                return true;
              }

              @Override
              public List<String> getResult() {
                return list;
              }
            });
    assertEquals(ImmutableList.of("foo", "bar", "baz", "something"), list);
    assertTrue(lines.wasStreamOpened() && lines.wasStreamClosed());
  }

            System.arraycopy(buf, off, processedBytes, pos, len);
            pos += len;
            return true;
          }

          @Override
          public byte[] getResult() {
            return processedBytes;
          }
        };

    source.read(processor);
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

            System.arraycopy(buf, off, processedBytes, pos, len);
            pos += len;
            return true;
          }

          @Override
          public byte[] getResult() {
            return processedBytes;
          }
        };

    source.read(processor);
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

                out.write(buf, off, len);
                return true;
              }

              @Override
              public byte[] getResult() {
                return out.toByteArray();
              }
            });

    assertExpectedBytes(readBytes);
  }

  public void testHash() throws IOException {

    @Override
    public boolean processBytes(byte[] buf, int off, int len) {
      out.write(buf, off, len);
      return true;
    }

    @Override
    public byte[] getResult() {
      return out.toByteArray();
    }
  }

  public void testByteProcessorStopEarly() throws IOException {
    byte[] array = newPreFilledByteArray(10000);
    assertEquals(
        (Integer) 42,