Migrating from HSQLDB to Oracle fails with:

Database error at cru_inline_comment_to_frx_rev:4999 (table:row) of the input: ORA-12899: value too large for column "FISHEYE"."CRU_INLINE_COMMENT_TO_FRX_REV"."CRU_LINE_RANGE" (actual: 129, maximum: 100)

The workaround is to manually truncate the records with a value larger than 100 chars.
This width should be increased to atleast 255, and a limit enforced via the UI as well to help avoid exceeding the set limit.