Sun JDK 不兼容 IBM JDK 备忘录

工作中遇到一些Sun JDK与IBM JDK不兼容的问题,记下来做个备忘

1. String.getBytes(String encoding)

TestCase:       public static void main(String[] args) {        try {            RandomAccessFile f = new RandomAccessFile("test.txt", "rw");            f.write("tets".getBytes(null));            f.close();        } catch (IOException e) {            e.printStackTrace();                    }   }   SUN JDK 1.4 : OK

IBM JDK 1.4 :

Exception in thread "main" java.lang.NullPointerException        at java.lang.StringCoding$EncoderCache.makeEncoder(StringCoding.java:198)        at java.lang.StringCoding$2.run(StringCoding.java:251)        at java.security.AccessController.doPrivileged1(Native Method)        at java.security.AccessController.doPrivileged(AccessController.java:351)        at java.lang.StringCoding$EncoderCache.getEncoder(StringCoding.java:248)        at java.lang.StringCoding.getEncoder(StringCoding.java:331)        at java.lang.StringCoding.encode(StringCoding.java:472)        at java.lang.String.getBytes(String.java:947)        at NullEncoding.main(NullEncoding.java:12)

   

2. 日文编码

Test Case:       public static void main(String[] args) {        try {             "".getBytes("Shift_JIS");            "".getBytes("Shift-JIS");        } catch (Exception e) {            e.printStackTrace();        }     }  

SUN JDK 1.4 : OK

IBM JDK 1.4 :

java.io.UnsupportedEncodingException: Shift-JIS        at java.lang.StringCoding$EncoderCache.getEncoder(StringCoding.java:262)        at java.lang.StringCoding.getEncoder(StringCoding.java:331)        at java.lang.StringCoding.encode(StringCoding.java:472)        at java.lang.String.getBytes(String.java:947)        at ShiftEncoding.main(ShiftEncoding.java:17)

 

To Be Continue...