mkdirsAndWriteText(
                """
            class FlakyTest {
                @org.junit.jupiter.api.Test
                public void test() {
                    ${if (fail) "throw new IllegalStateException();" else ""}
                }
            }
                """.trimIndent()
            )
        }

        try {
            return clazz.newInstance();
        } catch (final InstantiationException e) {
            throw new InstantiationRuntimeException(clazz, e);
        } catch (final IllegalAccessException e) {
            throw new IllegalAccessRuntimeException(clazz, e);
        }
    }

    /**
     * 指定されたクラスをコンテキストクラスローダから取得し、デフォルトコンストラクタで、クラスの新しいインスタンスを作成および初期化します。
     *

    } catch (Exception e) {
      throw new IllegalArgumentException("Error extracting features from tester annotation.", e);
    }
    Set<Feature<?>> allPresentFeatures = addImpliedFeatures(copyToSet(presentFeatures));
    Set<Feature<?>> allAbsentFeatures = copyToSet(absentFeatures);
    if (!disjoint(allPresentFeatures, allAbsentFeatures)) {
      throw new ConflictingRequirementsException(

      }
      if (!range.hasUpperBound()) {
        effectiveRange = effectiveRange.intersection(Range.atMost(domain.maxValue()));
      }
    } catch (NoSuchElementException e) {
      throw new IllegalArgumentException(e);
    }

    boolean empty;
    if (effectiveRange.isEmpty()) {
      empty = true;
    } else {
      /*

  static PublicSuffixType fromCode(char code) {
    for (PublicSuffixType value : values()) {
      if (value.getInnerNodeCode() == code || value.getLeafNodeCode() == code) {
        return value;
      }
    }
    throw new IllegalArgumentException("No enum corresponding to given code: " + code);
  }

            try (InputStream in = Files.newInputStream(userToolchainsFile.toPath())) {
                toolchains = new PersistedToolchains(new MavenToolchainsStaxReader().read(in));
            } catch (Exception e) {
                throw new MisconfiguredToolchainException(
                        "Cannot read toolchains file at " + userToolchainsFile.getAbsolutePath(), e);
            }

        } else if (userToolchainsFile != null) {

    }
    throw new IllegalStateException("Unexpected edge type: " + edgeType);
  }

  private static EdgeType oppositeType(EdgeType edgeType) {
    switch (edgeType) {
      case UNDIRECTED:
        return EdgeType.DIRECTED;
      case DIRECTED:
        return EdgeType.UNDIRECTED;
    }
    throw new IllegalStateException("Unexpected edge type: " + edgeType);
  }

  private File getTestDir() throws IOException {
    if (testDir != null) {
      return testDir;
    }

    URL testFileUrl = IoTestCase.class.getResource("testdata/i18n.txt");
    if (testFileUrl == null) {
      throw new RuntimeException("unable to locate testdata directory");
    }

    if (testFileUrl.getProtocol().equals("file")) {
      try {
        File testFile = new File(testFileUrl.toURI());

    }
    throw new IllegalStateException("Unexpected edge type: " + edgeType);
  }

  private static EdgeType oppositeType(EdgeType edgeType) {
    switch (edgeType) {
      case UNDIRECTED:
        return EdgeType.DIRECTED;
      case DIRECTED:
        return EdgeType.UNDIRECTED;
    }
    throw new IllegalStateException("Unexpected edge type: " + edgeType);
  }

            return result;
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    private boolean isAttribute(final String key) {
        return !NAME.equals(key) && !PASSWORD.equals(key) && !GROUPS.equals(key) && !ROLES.equals(key);
    }