Exception in conversion of date formats

I am trying to convert the date format from "dow mon dd hh:mm:ss zzz yyyy" to "MM/dd/yyyy"

String inputPattern = "dow mon dd hh:mm:ss zzz yyyy";
    String outputPattern = "MM/dd/yyyy";
    SimpleDateFormat inputFormat = new SimpleDateFormat(inputPattern);
    SimpleDateFormat outputFormat = new SimpleDateFormat(outputPattern);

    Date date=inputFormat.parse("Tue Dec 07 15:59:03 IST 2010");
    System.out.println("Date : "+outputFormat.format(date));

But While running the above code the following exception occurs

Exception in thread "main" java.lang.IllegalArgumentException: Illegal pattern character 'o'
at java.text.SimpleDateFormat.compile(S开发者_如何学GoimpleDateFormat.java:769)
at java.text.SimpleDateFormat.initialize(SimpleDateFormat.java:576)
at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:501)
at java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:476)
at com.kpub.web.bean.action.ReportGeneration.main(ReportGeneration.java:198)

What may be the problem?

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Maybe you can use for input pattern as;

EEE MMM dd HH:mm:ss zzz yyyy

From Java Manual