I am trying to open an ignition client that is connected to the network. When I try to launch the vision client with auto login, I get a pop up with the following.
ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0.
Any help is appreciated !
Unfortunately, you haven’t give enough context to the error message for us to really be able to help. There should be more detail than this with the error message, that will tell where it occurred.
At the very least a screen snip of the error dialog box would help.
I just encountered the same error on recovery from a power outage. This was on a project set to auto-login as mentioned in @Ignition_Newbie’s first post above.
java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
at org.python.objectweb.asm.ClassReader.readStringish(ClassReader.java:3493)
at org.python.objectweb.asm.ClassReader.readClass(ClassReader.java:3508)
at org.python.objectweb.asm.ClassReader.accept(ClassReader.java:430)
at org.python.objectweb.asm.ClassReader.accept(ClassReader.java:400)
at org.python.core.AnnotationReader.<init>(AnnotationReader.java:47)
at org.python.core.imp.readCodeData(imp.java:387)
at org.python.core.imp.createFromPyClass(imp.java:284)
at org.python.core.imp.createFromPyClass(imp.java:255)
at org.python.core.imp.loadFromSource(imp.java:929)
at org.python.core.imp.find_module(imp.java:769)
at org.python.core.imp.import_next(imp.java:1158)
at org.python.core.imp.import_first(imp.java:1198)
at org.python.core.imp.load(imp.java:1016)
at org.python.core.PySystemState.initializeCodecState(PySystemState.java:374)
at org.python.core.PySystemState.getCodecState(PySystemState.java:360)
at org.python.core.codecs.setDefaultEncoding(codecs.java:42)
at org.python.core.PySystemState.setdefaultencoding(PySystemState.java:536)
at com.inductiveautomation.ignition.common.script.ScriptManager.createUtf8PySystemState(ScriptManager.java:257)
at com.inductiveautomation.ignition.common.script.ScriptManager.<init>(ScriptManager.java:134)
at com.inductiveautomation.ignition.common.script.ScriptManager.<init>(ScriptManager.java:113)
at com.inductiveautomation.factorypmi.application.runtime.ClientContextImpl.startup(ClientContextImpl.java:359)
at com.inductiveautomation.factorypmi.application.runtime.ClientPanel.startupApp(ClientPanel.java:846)
at com.inductiveautomation.factorypmi.application.runtime.ClientPanel.onProjectDownloadFinished(ClientPanel.java:820)
at com.inductiveautomation.factorypmi.application.runtime.DownloadProjectPane.lambda$new$0(DownloadProjectPane.java:72)
at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.postComplete(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.complete(Unknown Source)
at com.inductiveautomation.factorypmi.application.runtime.DownloadProjectPane$DownloadProject.run(DownloadProjectPane.java:111)
at com.inductiveautomation.ignition.client.launch.AbstractStepRunner.run(AbstractStepRunner.java:33)
at java.base/java.lang.Thread.run(Unknown Source)
Ignition v8.1.18 (b2022061518)
Java: Azul Systems, Inc. 11.0.15```
Restarting the gateway resolved the issue and clients connected as usual.
Same error and same solution applied. ---- Restart the gateway ---
I have some clients running the application.
One of them shows the error. This client has two windows users. With only one of these windows users signed in , when the application starts and try to auto login, the same message is shown. If I sign out and sign in in to the PC with the other windows user, the application works great.
I have one PC that's doing same thing. When Vision client is started, it fails with error. However, if I start two vision clients concurrently, one will show this error while the other client will start normally. So, closing client with error yields a running session. I discovered this accidentally and have not tried to replicate it (yet). Exception dump. I wanted to add another workaround to r.castro's observation.
Version: 8.1.35 (b2023120517), Vision, Windows 10, Java 17.0.8+7-LTS
This is an error in Jython's internals. The most helpful thing you can do to help us fix it is to collect a backup of the .ignition folder in your profile directory (e.g. C:/Users/yourUsername) and send it in to our support department. Deleting that whole directory (or just the cache/ subfolder) afterwards will probably resolve the issue.
Thank you; I submitted files towards new support ticket #123708. Also, your work-around cured my client and I didn't have to restart the gateway.
BTW, Jython 2.7.4 dropped this week. Will it make it in v8.1?
