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Posted to derby-dev@db.apache.org by "Myrna van Lunteren (JIRA)" <ji...@apache.org> on 2007/05/23 03:13:16 UTC
[jira] Closed: (DERBY-1783) Logical error in code for determining
mode for opening of log files
[ https://issues.apache.org/jira/browse/DERBY-1783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Myrna van Lunteren closed DERBY-1783.
-------------------------------------
Resolution: Fixed
Fix Version/s: 10.2.1.6
10.2.2.0
> Logical error in code for determining mode for opening of log files
> -------------------------------------------------------------------
>
> Key: DERBY-1783
> URL: https://issues.apache.org/jira/browse/DERBY-1783
> Project: Derby
> Issue Type: Bug
> Components: Store
> Affects Versions: 10.2.1.6
> Environment: JVM 1.4.2 and later
> Reporter: Olav Sandstaa
> Assigned To: Olav Sandstaa
> Priority: Trivial
> Fix For: 10.3.0.0, 10.2.2.0, 10.2.1.6
>
> Attachments: rwsync.diff
>
>
> There is a logical error in the following function in DirFile4.java
> for determining which mode to use when opening a new log file:
> public StorageRandomAccessFile getRandomAccessFile( String mode) throws FileNotFoundException
> {
> // Assume that modes "rws" and "rwd" are not supported.
> if(!rwsOK && "rws".equals( mode) || "rwd".equals( mode))
> mode = "rw";
> return new DirRandomAccessFile4( (File) this, mode);
> } // end of getRandomAccessFile
> The expression in the if test is missing parentheses around the OR
> expression making it return the wrong value for one case. If "rwd"
> mode is requested for the file (and this is supported by the JVM), the
> file is opened with "rw" instead of "rwd".
> NOTE: this bug does not effect any current Derby versions since as far
> as I know "rwd" is never used for log files. I came across it when
> experimenting with using "rwd" for the log.
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