brikar-common/src/main/java/com/truward/brikar/common/log/LogUtil.java
public static String encodeString(String value) {
    int estimatedSize = 0;
    final int len = value.length();

    // estimate output string size to find out whether encoding is required and avoid reallocations in string builder
    for (int i = 0; i < len; ++i) {
      final char ch = value.charAt(i);
      if (ch <= ' ' || ch == ',') {
        estimatedSize += 3;
        continue;
      }

      ++estimatedSize;
    }

    if (value.length() == estimatedSize) {
      return value; // return value as is - it does not contain any special characters
    }

    final StringBuilder builder = new StringBuilder(estimatedSize);
    for (int i = 0; i < len; ++i) {
      final char ch = value.charAt(i);
      if (ch <= ' ') {
        builder.append("%20");
        continue;
      }

      if (ch == ',') {
        builder.append("%2c");
        continue;
      }

      builder.append(ch);
    }

    return builder.toString();
  }
public static String encodeString(String value) {
    int estimatedSize = 0;
    final int len = value.length();

    // estimate output string size to find out whether encoding is required and avoid reallocations in string builder
    for (int i = 0; i < len; ++i) {
      final char ch = value.charAt(i);
      if (ch <= ' ' || ch == ',') {
        estimatedSize += 3;
        continue;
      }

      ++estimatedSize;
    }

    if (value.length() == estimatedSize) {
      return value; // return value as is - it does not contain any special characters
    }

    final StringBuilder builder = new StringBuilder(estimatedSize);
    for (int i = 0; i < len; ++i) {
      final char ch = value.charAt(i);
      if (ch <= ' ') {
        builder.append("%20");
        continue;
      }

      if (ch == ',') {
        builder.append("%2c");
        continue;
      }

      builder.append(ch);
    }

    return builder.toString();
  }
Encodes a value, so that it won't contain spaces, commas and equal signs.

@param value Value to be encoded
@return Encoded value or same value if passed argument does not contain whitespace, comma or equals sign