As mentioned by many people, that a failure in the stage of
request_token is probably caused by the unsynchronized system clock.
That is somehow not the reason for my problem where I tried to
implement the OAuth in java. Basically, the requested url plus the
parameters is as:
I used the "(long) Date.getTime()/1000" to get the current time in
seconds and my system clock is synchronized anyway (GMT+2:00). It
keeps returning "Failed to validate oauth signature and token", I
really don't know why this could happen.
Any solution? Thanks.