AES doubt

I tried to encrypt/decrypt plaintext using AES. Though the Encryption/Decryption was success, It generated a doubt, and I am stuck !
If my input length is <=15 characters, the output is of 16 bytes, as it should be. AES is a 128 bit block cipher, then how it is that I input a plaintext of exactly 16 bytes (A string of 16 characters), it outputs a byte array of 32 elements (that is 32*8= 256 bits) ??? On the other hand, the same input has been given to a Pearl-code, which is generating a cipherText of 16 bytes which is the same as the first 16 bytes of the 32 bytes generated in Java.
Please Help!

This seems to be a padding problem. I don't know that I'd call it a "problem" - it's just padding doing its job.
It may be the your java AES implementation is
defaulting to a more conservative level of security.Java providers generally make many cipher/mode/padding combinations available. To get at them, you have to be explicit - "AES/CBC/PKCS5Padding", for example. If you're not explicit (e.g., "AES"), then you get whatever mode and padding the Provider-writer decided was "most usual".
I never use the defaults any more. Especially when you're doing crypto between entities using different libraries, it's just too easy for things to Not match.
Grant

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from 6 to 16 characters long, which will be stored in a database. I
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Hi..,
1)
See if u sort the table on a field on which u r using AT ENDAT .. then all the records which are having the same value for that field will form a group or those reocrds will be at one place.. so when u sort the table for all the records AT ENDAT will get executed onli once..
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Hi all,
Thanks for Looking into my Problem
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ERROR at line 1:
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hi,
point 1:
am i right to say
If all data on the left is picked, and some latest data in the master data is not found in the left, only all the left side data is displayed am i right? so, what is not in the right (master data attr) will not be selected by the infoset?
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master data     attribute
100                ABC
102               XYZ
103              DEF
Now in cube you have data
cube field
100
101
105
106
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100       ABC
Right outer join
field    attribute
100                ABC
102               XYZ
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am i right to say
its just slower performance and the rest being similar effect as joining the key field?
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