@Test public void testNullIfBlankLettersShouldNotBeNull() { assertEquals("abc", StripeTextUtils.nullIfBlank("abc")); }
@Nullable public static String nullIfBlank(@Nullable String value) { if (isBlank(value)) { return null; } return value; }
StripeTextUtils { @Nullable public static String nullIfBlank(@Nullable String value) { if (isBlank(value)) { return null; } return value; } }
StripeTextUtils { @Nullable public static String nullIfBlank(@Nullable String value) { if (isBlank(value)) { return null; } return value; }  }
StripeTextUtils { @Nullable public static String nullIfBlank(@Nullable String value) { if (isBlank(value)) { return null; } return value; }  @Nullable static String nullIfBlank(@Nullable String value); static boolean isBlank(@Nullable String value); @Nullable static String removeSpacesAndHyphens(@Nullable String cardNumberWithSpaces); }
StripeTextUtils { @Nullable public static String nullIfBlank(@Nullable String value) { if (isBlank(value)) { return null; } return value; }  @Nullable static String nullIfBlank(@Nullable String value); static boolean isBlank(@Nullable String value); @Nullable static String removeSpacesAndHyphens(@Nullable String cardNumberWithSpaces);  }