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()}}.