properties文件中定义大括号

今天遇到一个很郁闷的问题，使用MessageFormat.applyPattern时一直抛出异常：

java.lang.IllegalArgumentException: can't parse argument number margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;

经过检查是properties文件中的“{”引起的，因为这一段是css的style，但是applyPattern是将这个“{”当成占位符处理了，\u007B也试过了，不好使，没办法只能查看java源代码，这个方法的代码如下：

public void applyPattern(String pattern) {
            StringBuffer[] segments = new StringBuffer[4];
            for (int i = 0; i < segments.length; ++i) {
                segments[i] = new StringBuffer();
            }
            int part = 0;
            int formatNumber = 0;
            boolean inQuote = false;
            int braceStack = 0;
            maxOffset = -1;
            for (int i = 0; i < pattern.length(); ++i) {
                char ch = pattern.charAt(i);
                if (part == 0) {
                    if (ch == '\'') {
                        if (i + 1 < pattern.length()
                            && pattern.charAt(i+1) == '\'') {
                            segments[part].append(ch);  // handle doubles
                            ++i;
                        } else {
                            inQuote = !inQuote;
                        }
                    } else if (ch == '{' && !inQuote) {
                        part = 1;
                    } else {
                        segments[part].append(ch);
                    }
                } else  if (inQuote) {              // just copy quotes in parts
                    segments[part].append(ch);
                    if (ch == '\'') {
                        inQuote = false;
                    }
                } else {
                    switch (ch) {
                    case ',':
                        if (part < 3)
                            part += 1;
                        else
                            segments[part].append(ch);
                        break;
                    case '{':
                        ++braceStack;
                        segments[part].append(ch);
                        break;
                    case '}':
                        if (braceStack == 0) {
                            part = 0;
                            makeFormat(i, formatNumber, segments);
                            formatNumber++;
                        } else {
                            --braceStack;
                            segments[part].append(ch);
                        }
                        break;
                    case '\'':
                        inQuote = true;
                        // fall through, so we keep quotes in other parts
                    default:
                        segments[part].append(ch);
                        break;
                    }
                }
            }
            if (braceStack == 0 && part != 0) {
                maxOffset = -1;
                throw new IllegalArgumentException("Unmatched braces in the pattern.");
            }
            this.pattern = segments[0].toString();
    }

 发现这一段：

if (ch == '\'') {
                        if (i + 1 < pattern.length()
                            && pattern.charAt(i+1) == '\'') {
                            segments[part].append(ch);  // handle doubles
                            ++i;
                        } else {
                            inQuote = !inQuote;
                        }
                    } 

 原来转移符竟然是“\'”。。。想用单引号就写成“\'\'”