matthiasblaesing opened a new pull request #1417: [NETBEANS-1872] Prevent backtracking loops in CSS Parser URL: https://github.com/apache/netbeans/pull/1417 The references issue found cases, where the CSS grammar lead to an inifite backtracking loop. This patch works around that limitation by requireing that the parsing progresses. The implementation counts the read calls issued without progressing through the stream. If the read count withouth progress exceeds 10.000.000 reads, parsing is stopped. The number was found experimentally - it needs to be large enough to handle real world cases and low enough that progress happens early enough.
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