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This is the core library for Active Objects. It is generic and can be embedded in any environment. As such it is generic and won't contain all connection pooling, etc.

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package net.java.ao.util;

public final class StringUtils {
    public static boolean isBlank(String s) {
        if (s == null || s.length() == 0) {
            return true;
        }
        for (int i = 0; i < s.length(); i++) {
            if (!Character.isWhitespace(s.charAt(i))) {
                return false;
            }
        }
        return true;
    }
}