*/
    public static String readText(final String path) {
        assertArgumentNotEmpty("path", path);
        return readText(path, Charset.defaultCharset().name());
    }

    /**
     * デフォルトエンコーディングでファイルからテキストを読み込みます。
     *
     * @param file
     *            ファイル。{@literal null}であってはいけません
     * @return 読み込んだテキスト
     */
    public static String readText(final File file) {

    inputs.property("jvmOpts", jvmOpts)
    doLast {
        val optsEnvVar = "DEFAULT_JVM_OPTS"
        scriptFile.writeText(scriptFile.readText().replace("$optsEnvVar='", "$optsEnvVar='$jvmOpts "))
        batchScript.writeText(batchScript.readText().replace("set $optsEnvVar=", "set $optsEnvVar=$jvmOpts "))
    }
}

fun Project.wrapperUpdateTask(name: String, label: String) {

            println("Tests to be included:\n$content")
            IncludeTestClassProvider(readTestClasses(content))
        }
        parameters.excludeTestClasses.get().isNotBlank() -> {
            val content = parameters.repoRoot.file("test-splits/exclude-test-classes.properties").get().asFile.readText()
            println("Tests to be excluded:\n$content")

                        }
                    ]
                }
            """)
        val actualFirstJson = loadChangesJson(firstAcceptedApiChangesFile.readText())
        val actualSecondJson = loadChangesJson(secondAcceptedApiChangesFile.readText())

        assertEquals(expectedFirstJson, actualFirstJson)
        assertEquals(expectedSecondJson, actualSecondJson)
    }

    private

            it.writeText(it.readText().replace("\\Q<lastUpdated>\\E\\d+\\Q</lastUpdated>\\E".toRegex(), "<lastUpdated>${Year.now().value}0101000000</lastUpdated>"))
        }
        repoDir.get().asFileTree.matching { include("**/*.module") }.forEach {
            val content = it.readText()
                .replace("\"buildId\":\\s+\"\\w+\"".toRegex(), "\"buildId\": \"\"")

    )
}

tasks.register<UpdateReleasedVersions>("updateReleasedVersionsToLatestNightly") {
    currentReleasedVersion = project.provider {
        val jsonText = URI("https://services.gradle.org/versions/nightly").toURL().readText()
        println(jsonText)
        val versionInfo = Gson().fromJson(jsonText, VersionBuildTimeInfo::class.java)
        ReleasedVersion(versionInfo.version, versionInfo.buildTime)
    }
}

                writeText(readText().replace("\\Q<lastUpdated>\\E\\d+\\Q</lastUpdated>\\E".toRegex(), "<lastUpdated>${Year.now().value}0101000000</lastUpdated>"))
            }
            localRepository.get().asFileTree.matching { include("**/*.module") }.forEach {
                val content = it.readText()
                    .replace("\"buildId\":\\s+\"\\w+\"".toRegex(), "\"buildId\": \"\"")

    }

    private
    fun readPerformanceTestDurations(performanceTestDurationsJson: File): OperatingSystemToTestProjectPerformanceTestDurations {
        val durations = JSON.parseArray(performanceTestDurationsJson.readText(StandardCharsets.UTF_8))
        val pairs = durations.flatMap { it ->
            val scenarioDurations = it as JSONObject
            val scenario = Scenario.fromTestId(scenarioDurations["scenario"] as String)

}

data class JsonBasedGradleSubprojectProvider(private val jsonFile: File) : GradleSubprojectProvider {
    @Suppress("UNCHECKED_CAST")
    override val subprojects = JSON.parseArray(jsonFile.readText()).map { toSubproject(it as Map<String, Any>) }

    private val nameToSubproject = subprojects.map { it.name to it }.toMap()
    override fun getSubprojectsForFunctionalTest(testConfig: TestCoverage) =

            }?.mapValues {
                it.value.acceptedApiChanges!!
            } ?: emptyMap()
    }

    private
    fun File.readAcceptedChanges(): AcceptedApiChanges {
        val jsonString = this.readText()
        return Gson().fromJson(jsonString, AcceptedApiChanges::class.java)
    }

    /**
     * Sorts the given list of [AcceptedApiChange]s by type and member.
     * <p>