This how to OpenHAB FrameworkEvent ERROR helps to deal with this error. In this case it is related to Java.
OpenHAB FrameworkEvent ERROR
Index Of How To OpenHAB FrameworkEvent ERROR
Background of OpenHAB FrameworkEvent ERROR
You might face after upgrading your OpenHAB instance or after upgrading some other software a Framework Error that shows up in your log file. In my case, the framework error was related to Java. In case this information is needed or helpful for you, i am running OpenHAB 4 on a Raspberry Pi 4. The full error message looks like this:
[ERROR] [Events.Framework ] - FrameworkEvent ERROR org.osgi.framework.BundleException: Could not resolve module: org.openhab.io.homekit [266] Unresolved requirement: Import-Package: org.openhab.core.common -> Export-Package: org.openhab.core.common; bundle-symbolic-name="org.openhab.core"; bundle-version="4.0.3"; version="4.0.3" org.openhab.core [150] Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=17))" Unresolved requirement: Import-Package: org.openhab.core.common.registry -> Export-Package: org.openhab.core.common.registry; bundle-symbolic-name="org.openhab.core"; bundle-version="4.0.3"; version="4.0.3"; uses:="org.openhab.core.events,org.openhab.core.service,org.openhab.core.storage,org.osgi.framework,org.slf4j" at org.eclipse.osgi.container.Module.start(Module.java:463) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1847) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$1$1.execute(EquinoxContainerAdaptor.java:136) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1840) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1783) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1745) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1667) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234) ~[org.eclipse.osgi-3.18.0.jar:?] at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345) ~[org.eclipse.osgi-3.18.0.jar:?]
How To Fix OpenHAB FrameworkEvent ERROR
In my case, the above error message was related to the wrong Java version. This because OpenHAB 4 leverages on Java 17, which is the newest version. However, after installing another piece of software, which is leveraging on a previous Java version, the systems standard moved to Java 11.
Therefore, to check the current active Java version, fire the below command:
sudo update-alternatives --config java
This gives you most likely something like the below. It says clearly, that my system by default is using Java 11.
openhabian@OpenHAB:/usr/lib/unifi $ sudo update-alternatives --config java There are 3 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-17-openjdk-armhf/bin/java 1711 auto mode * 1 /usr/lib/jvm/java-11-openjdk-armhf/bin/java 1111 manual mode 2 /usr/lib/jvm/java-17-openjdk-armhf/bin/java 1711 manual mode 3 /usr/lib/jvm/java-8-openjdk-armhf/jre/bin/java 1081 manual mode Press <enter> to keep the current choice[*], or type selection number:
How to change it? Well, this is actually simple and the menu tells you. In the above case, and to use Java 17, i simply had to enter “0”. Following enter 0 the Java version changed to Java 17.
After changing, i rebooted the system to be on the safe side and entered after reboot again:
sudo update-alternatives --config java
This time, the system printed the below on the screen:
openhabian@OpenHAB: $ sudo update-alternatives --config java There are 3 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ * 0 /usr/lib/jvm/java-17-openjdk-armhf/bin/java 1711 auto mode 1 /usr/lib/jvm/java-11-openjdk-armhf/bin/java 1111 manual mode 2 /usr/lib/jvm/java-17-openjdk-armhf/bin/java 1711 manual mode 3 /usr/lib/jvm/java-8-openjdk-armhf/jre/bin/java 1081 manual mode Press <enter> to keep the current choice[*], or type selection number:
This is exactly what i needed. And yes, after the reboot and this fix, OpenHAB did work properly.
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