public static FromJarEntryClassInformationProvider createFromCustomJar(
            File jarFile, @Nullable String jobClassName) {
        return new FromJarEntryClassInformationProvider(jarFile, jobClassName);
    }
@Test
    void testMissingJar() {
        assertThatThrownBy(
                        () ->
                                FromJarEntryClassInformationProvider.createFromCustomJar(
                                        null, "JobClassName"))
                .isInstanceOf(NullPointerException.class);
    }