[KARAF-7389] Problem installing features with embedded config

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.4.0, 4.3.6, 4.2.15
• Fix Version/s: 4.4.1, 4.3.8
• Component/s: karaf
• Target Version/s: 4.4.1, 4.3.8
• Assignee: Jean-Baptiste Onofré
• Reporter: Grzegorz Grzybek
• Created: 08/Feb/22 12:54
• Updated: 08/Jul/22 05:58
• Resolved: 08/Jul/22 05:58

Description

I've just seen this when installing Pax Web 8.0.1-SNAPSHOT features:

2022-02-08T13:25:32,180 | INFO  | fileinstall-/data/servers/apache-karaf-4.4.0-SNAPSHOT/etc | fileinstall                      | 17 - org.apache.felix.fileinstall - 3.7.4 | Updating configuration {org.ops4j.pax.web} from /data/servers/apache-karaf-4.4.0-SNAPSHOT/etc/org.ops4j.pax.web.cfg
2022-02-08T13:25:32,184 | ERROR | fileinstall-/data/servers/apache-karaf-4.4.0-SNAPSHOT/etc | fileinstall                      | 17 - org.apache.felix.fileinstall - 3.7.4 | Failed to install artifact: /data/servers/apache-karaf-4.4.0-SNAPSHOT/etc/org.ops4j.pax.web.cfg
java.lang.RuntimeException: java.lang.IllegalArgumentException: Key [] must not be an empty string
	at org.apache.felix.fileinstall.internal.ConfigInstaller.update0(ConfigInstaller.java:649) ~[!/:3.7.4]
	at org.apache.felix.fileinstall.internal.ConfigInstaller.setConfig(ConfigInstaller.java:411) ~[!/:3.7.4]
	at org.apache.felix.fileinstall.internal.ConfigInstaller.install(ConfigInstaller.java:192) ~[!/:3.7.4]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:950) [!/:3.7.4]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.install(DirectoryWatcher.java:884) [!/:3.7.4]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:489) [!/:3.7.4]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) [!/:3.7.4]
	at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:316) [!/:3.7.4]
Caused by: java.lang.IllegalArgumentException: Key [] must not be an empty string
	at org.apache.felix.cm.impl.CaseInsensitiveDictionary.checkKey(CaseInsensitiveDictionary.java:269) ~[?:?]
	at org.apache.felix.cm.impl.CaseInsensitiveDictionary.<init>(CaseInsensitiveDictionary.java:73) ~[?:?]
	at org.apache.felix.cm.impl.ConfigurationImpl.update(ConfigurationImpl.java:452) ~[?:?]
	at org.apache.felix.cm.impl.ConfigurationAdapter.updateIfDifferent(ConfigurationAdapter.java:204) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_312]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_312]
	at org.apache.felix.fileinstall.internal.ConfigInstaller.update0(ConfigInstaller.java:641) ~[!/:3.7.4]
	... 7 more

Issue Links

• relates to: KARAF-7453 Race condition in threaded ConnectorServerFactory