RealFileSystem:exists is not case sensitive in windows leading to a compilation failure with undertow and jbossweb ------------------------------------------------------------------------------------------------------------------ Key: JBVFS-199 URL: https://issues.jboss.org/browse/JBVFS-199 Project: JBoss VFS Issue Type: Bug Affects Versions: 3.2.5.Final, 3.5.0.Alpha1 Environment: Windows 64 bits JDK 1.7.0_71 Reporter: Enrique González Martínez Assignee: Enrique González Martínez Fix For: 3.2.8.Final, 3.5.0.Alpha1 In Wildfly, during jsp compilation the lookup function uses the Classloader::getResourceAsStream that relies on VFSResourceLoader for opening an InputStream. This function is working different due to windows file system (not case sensitive).