Hello,
I was developing a new plugin and used Avatar Resizer (https://www.igniterealtime.org/projects/openfire/plugins/1.0.1/avatarResizer/readme.html) as my base source code since I was modifying vCards. I ran into an error in my code, and turns out the Avatar Resizer plugin has the same error as well. It appears the plugin does not work and I was hoping someone could help me understand why it is not working so that I can write a plugin.
In short, the plugin is overriding the org.jivesoftware.openfire.vcard.DefaultVCardProvider with a custom class org.igniterealtime.openfire.plugin.avatarresizer.DelegateVCardProvider. I am trying to accomplish the same by writing my own loadVCard function.
Any help would be greatly appreciated.
Error message:
2019.08.21 04:51:27 WARN [pool-58-thread-1]: org.jivesoftware.util.SystemProperty - Class org.igniterealtime.openfire.plugin.avatarresizer.DelegateVCardProvider was not found
java.lang.ClassNotFoundException: org.igniterealtime.openfire.plugin.avatarresizer.DelegateVCardProvider
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[?:1.8.0_222]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_222]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_222]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_222]
at java.lang.Class.forName(Class.java:264) ~[?:1.8.0_222]
at org.jivesoftware.util.SystemProperty.lambda$static$9(SystemProperty.java:100) ~[xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.SystemProperty.getValue(SystemProperty.java:302) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.SystemProperty$1.propertySet(SystemProperty.java:195) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.PropertyEventDispatcher.dispatchEvent(PropertyEventDispatcher.java:87) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.JiveProperties.put(JiveProperties.java:302) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.JiveGlobals.setProperty(JiveGlobals.java:811) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.util.JiveGlobals.setProperty(JiveGlobals.java:793) [xmppserver-4.4.1.jar:4.4.1]
at org.igniterealtime.openfire.plugin.avatarresizer.AvatarResizerPlugin.initializePlugin(AvatarResizerPlugin.java:25) [avatarResizer-lib.jar!/:?]
at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java:638) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:381) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:369) [xmppserver-4.4.1.jar:4.4.1]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
2019.08.21 04:51:27 ERROR [pool-58-thread-1]: org.jivesoftware.openfire.container.PluginManager - An exception occurred while loading plugin ‘avatarresizer’:
java.lang.ClassCastException: org.jivesoftware.openfire.vcard.DefaultVCardProvider cannot be cast to org.igniterealtime.openfire.plugin.avatarresizer.DelegateVCardProvider
at org.igniterealtime.openfire.plugin.avatarresizer.AvatarResizerPlugin.initializePlugin(AvatarResizerPlugin.java:27) ~[avatarResizer-lib.jar!/:?]
at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java:638) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:381) [xmppserver-4.4.1.jar:4.4.1]
at org.jivesoftware.openfire.container.PluginMonitor$MonitorTask$4.call(PluginMonitor.java:369) [xmppserver-4.4.1.jar:4.4.1]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]