[CAUSEWAY-1050] [WON'T FIX] Reflection VFS related issues in jetty-console

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: core-1.8.0
• Fix Version/s: 2.0.0-M2
• Component/s: Core
• Assignee: Unassigned
• Reporter: Martin Tzvetanov Grigorov
• Created: 19/Feb/15 21:35
• Updated: 09/Jan/19 13:21
• Resolved: 09/Jan/19 13:21

Description

Just tried java jar .../simpleapp...-jetty-console.jar and it logs several VFS related stacktraces:

java.io.FileNotFoundException: /tmp/simpleapp-webapp-1.8.0-SNAPSHOT-jetty-console.jar_8080/webapp/WEB-INF/classes (Is a directory)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:215)
at java.util.zip.ZipFile.<init>(ZipFile.java:145)
at java.util.jar.JarFile.<init>(JarFile.java:154)
at java.util.jar.JarFile.<init>(JarFile.java:118)
at org.reflections.vfs.Vfs$DefaultUrlTypes$1.createDir(Vfs.java:207)
at org.reflections.vfs.Vfs.fromURL(Vfs.java:98)
at org.reflections.vfs.Vfs.fromURL(Vfs.java:90)
at org.reflections.Reflections.scan(Reflections.java:236)
at org.reflections.Reflections.scan(Reflections.java:203)
at org.reflections.Reflections.<init>(Reflections.java:128)
at org.reflections.Reflections.<init>(Reflections.java:169)
at org.apache.isis.applib.services.classdiscovery.ClassDiscoveryServiceUsingReflections.findSubTypesOfClasses(ClassDiscoveryServiceUsingReflections.java:76)
at org.apache.isis.applib.fixturescripts.FixtureScripts.findSubTypesOfClasses(FixtureScripts.java:226)
....

and

ava.lang.NoClassDefFoundError: org/apache/commons/vfs2/VFS
at org.reflections.vfs.Vfs$DefaultUrlTypes$7.matches(Vfs.java:281)
at org.reflections.vfs.Vfs.fromURL(Vfs.java:97)
at org.reflections.vfs.Vfs.fromURL(Vfs.java:90)
at org.reflections.Reflections.scan(Reflections.java:236)
at org.reflections.Reflections.scan(Reflections.java:203)
at org.reflections.Reflections.<init>(Reflections.java:128)
at org.reflections.Reflections.<init>(Reflections.java:169)
at org.reflections.Reflections.<init>(Reflections.java:142)
at org.apache.isis.objectstore.jdo.service.RegisterEntities.registerAllPersistenceCapables(RegisterEntities.java:67)

It seems they are harmless. The application seems to run fine.

The problem could be related to the recent upgrade of Reflections to 0.9.9 and/or jetty-console-maven-plugin to 1.56.