public static boolean isNotBlank(final String str) {
        return !isBlank(str);
    }
Checks if a string is not empty (""), not null and not whitespace only.

Strings.isNotBlank(null)      = false
Strings.isNotBlank("")        = false
Strings.isNotBlank(" ")       = false
Strings.isNotBlank("bob")     = true
Strings.isNotBlank("  bob  ") = true
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/util/Strings.java