[jboss-jira] [JBoss JIRA] (JBVFS-200) FileURLConnection fails on relative URLs working on stock Java handler

[Arcadiy Ivanov (JIRA)]

     [ https://issues.jboss.org/browse/JBVFS-200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arcadiy Ivanov updated JBVFS-200:
---------------------------------
    Workaround Description:   (was: This is not really a workaround but URL of type file://./target/bundleA.txt would be parsed by URI constructor as hierarchical and would have getPath(). So if the URL format can be mandated externally, the use of the authority section "//" can be used to get around this bug.)
                Workaround:   (was: Workaround Exists)


> FileURLConnection fails on relative URLs working on stock Java handler
> ----------------------------------------------------------------------
>
>                 Key: JBVFS-200
>                 URL: https://issues.jboss.org/browse/JBVFS-200
>             Project: JBoss VFS
>          Issue Type: Bug
>          Components: Release
>    Affects Versions: 3.2.5.Final
>            Reporter: Arcadiy Ivanov
>            Assignee: Tomaz Cerar
>   Original Estimate: 1 hour
>  Remaining Estimate: 1 hour
>
> A URL "file:./target/bundleA.txt" will not be handled appropriately by FileURLConnection resulting in the following exception:
> {noformat}
> java.lang.IllegalArgumentException: VFS000021: path must not be null
>         at org.jboss.vfs.VFS.getChild(VFS.java:175)
>         at org.jboss.vfs.VFS.getChild(VFS.java:163)
>         at org.jboss.vfs.protocol.FileURLConnection.<init>(FileURLConnection.java:51)
>         at org.jboss.vfs.protocol.FileURLStreamHandler.openConnection(FileURLStreamHandler.java:38)
>         at java.net.URL.openConnection(URL.java:972)
>         at java.net.URL.openStream(URL.java:1038)
>         at org.jboss.osgi.repository.spi.FileBasedRepositoryStorage.getResourceContent(FileBasedRepositoryStorage.java:225)
>         at org.jboss.osgi.repository.spi.FileBasedRepositoryStorage.createResourceInternal(FileBasedRepositoryStorage.java:201)
>         at org.jboss.osgi.repository.spi.FileBasedRepositoryStorage.addContentResource(FileBasedRepositoryStorage.java:140)
>         at org.jboss.osgi.repository.spi.FileBasedRepositoryStorage.addResourceInternal(FileBasedRepositoryStorage.java:122)
>         at org.jboss.osgi.repository.spi.FileBasedRepositoryStorage.addResource(FileBasedRepositoryStorage.java:107)
> {noformat}
> The reason is that in the following code
> {noformat}
>     public static VirtualFile getChild(URI uri) {
>         return getChild(uri.getPath());
>     }
> {noformat}
> {{uri.getPath()}} will return {{null}} due to URI being constructed from URL not being parsed as hierarchical only evaluating to "scheme-specific-part".
> This behavior is different from a stock Java file URL handler that will accept "file:./target/bundleA.txt" and handle it appropriately.
> A possible fix would be to call {{uri.getPath()}} first and if that returns {{null}}, fallback onto {{uri.getSchemeSpecificPart()}}.



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