V1.5.3 - 'diff' tool flags things as different when they are the same

Using the 'diff' tool to compare databases. Resultant 'diff' script contains a lot of statements like this :
ALTER TABLE "tabl1" MODIFY ("column1" NOT NULL ENABLE);
.. but when i run them on the target, it tells me that the columns are already not null. No, i'm not running on the wrong db. In fact running that command on both the source and destination dbs elicits the same error :
Error starting at line 1 in command:
ALTER TABLE "tabl1" MODIFY ("column1" NOT NULL ENABLE)
Error report:
SQL Error: ORA-01442: column to be modified to NOT NULL is already NOT NULL
01442. 00000 - "column to be modified to NOT NULL is already NOT NULL"
*Cause:
*Action:
Additionally, the 'diff' script when asked to compare functions includes the function definition in it's output. However running that on the target and then re-running the diff still flags that function as different.

Further, i had a table defined in both db, same columns different column lenght :
CREATE TABLE CDB_R_FIRMS_ADDRESSES
INT_FIRM_ID INTEGER NOT NULL,
ADDRESS_UUID VARCHAR2*(50 CHAR)* NOT NULL,
ADDRESS_TYPE INTEGER NOT NULL
CREATE TABLE CDB_R_FIRMS_ADDRESSES
INT_FIRM_ID NUMBER NOT NULL,
ADDRESS_UUID VARCHAR2*(200 BYTE)* NOT NULL,
ADDRESS_TYPE NUMBER NOT NULL
.. and 'diff' failed to spot the difference! If 'diff' does not consider '50 char' different to '200 byte', what does it consider a difference ?Am i not using 'diff' as it was intended ?

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Message was edited by:
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Message was edited by:
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V1.5.3 - 'diff' tool flags things as different when they are the same

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