fun isOpenJsse() = getPlatformSystemProperty() == OPENJSSE_PROPERTY

    fun isLoom() = getPlatformSystemProperty() == LOOM_PROPERTY

    fun isGraalVMImage() = TestUtil.isGraalVmImage

    fun hasHttp2Support() = !isJdk8()

    fun assumeConscrypt() {
      assumeTrue(getPlatformSystemProperty() == CONSCRYPT_PROPERTY)
    }

    fun assumeJdk9() {
      assumeTrue(getPlatformSystemProperty() == JDK9_PROPERTY)