[jira] [Created] (COMPRESS-479) Unable to extract Zip with unknown UniCode path extra data version

["Robin Schimpf (JIRA)" <ji...@apache.org>]

Robin Schimpf created COMPRESS-479:
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             Summary: Unable to extract Zip with unknown UniCode path extra data version
                 Key: COMPRESS-479
                 URL: https://issues.apache.org/jira/browse/COMPRESS-479
             Project: Commons Compress
          Issue Type: Bug
    Affects Versions: 1.18
            Reporter: Robin Schimpf
         Attachments: unicode-test10509149899131946592.zip

The following exception is thrown when the version of the UniCode path extra data version is not 1. 7-Zip and Windows Explorer will extract the attached file. The version in the file was changed via a Hex editor to provoke the error.

{code:java}
java.lang.RuntimeException: Error parsing extra fields for entry: %U20AC_for_Dollar.txt - Unsupported version [116] for UniCode path extra data.

	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.setExtra(ZipArchiveEntry.java:626)
	at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.getNextZipEntry(ZipArchiveInputStream.java:315)
	at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.getNextEntry(ZipArchiveInputStream.java:408)
	at org.apache.commons.compress.archivers.zip.UTF8ZipFilesTest.testZipFileReadsUnicodeFields(UTF8ZipFilesTest.java:186)
...
Caused by: java.util.zip.ZipException: Unsupported version [116] for UniCode path extra data.
	at org.apache.commons.compress.archivers.zip.AbstractUnicodeExtraField.parseFromLocalFileData(AbstractUnicodeExtraField.java:172)
	at org.apache.commons.compress.archivers.zip.ExtraFieldUtils.parse(ExtraFieldUtils.java:180)
	at org.apache.commons.compress.archivers.zip.ZipArchiveEntry.setExtra(ZipArchiveEntry.java:620)
{code}

As I understand the specification in Section 4.6.8 and 4.6.9 when the version is unknown the information shoule be ignored.

Changes MAY NOT be backward compatible so this extra field *SHOULD NOT be used if the version is not recognized*.




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