Hi all, I wrote my web and I test my web and I found many Threads was blocking by java.util.TimeZone. My coding want to create many Calendars with "GMT" TimeZone for each request. Locale LOCALE = Locale.UK; TimeZone TIMEZONE = TimeZone.getTimeZone("GMT"); Calendar cal = Calendar.getInstance(TIMEZONE, LOCALE); I try to change to be LOCALE and TIMEZONE to be constant value (final static) But my web are slower. Should I change this code to used ThreadLocal? Or Can every one help to give some suggestions for better solutions? Thanks

When I started stress test on my web, I found many Threads was blocking by java.util.TimeZone. Missing.

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