I'm trying to upgrade my custom Karaf distribution to Karaf 2.3.0 but have
ran into some problems. It seems there is some kind of conflict between
ipojo 1.8.2 and the jpa feature - specifically the org.apache.aries.util
bundle in the jpa feature.
I install ipojo as a feature (not listed in startup.properties). But when I
do this I get the following exception:
*2012-11-05 15:51:20,251 | INFO | l Console Thread | Console
| araf.shell.console.jline.Console 199 | 14 -
org.apache.karaf.shell.console - 2.3.0 | Exception caught while executing
command*
*java.lang.UnsupportedOperationException: read() with timeout cannot be
called as non-blocking operation is disabled*
* at
jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:134)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.internal.InputStreamReader.read(InputStreamReader.java:259)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.internal.InputStreamReader.read(InputStreamReader.java:196)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.console.ConsoleReader.readCharacter(ConsoleReader.java:1974)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.console.ConsoleReader.readLine(ConsoleReader.java:2174)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
jline.console.ConsoleReader.readLine(ConsoleReader.java:2098)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
org.apache.karaf.shell.console.jline.Console.readAndParseCommand(Console.java:235)[14:org.apache.karaf.shell.console:2.3.0]
*
* at
org.apache.karaf.shell.console.jline.Console.run(Console.java:171)[14:org.apache.karaf.shell.console:2.3.0]
*
* at java.lang.Thread.run(Thread.java:662)[:1.6.0_32]*
Then it seems like Karaf (or Felix) restarts somehow since I get another
"Karaf" logo in the console. The issue can be reproduced quite easily:
1. Download a fresh Karaf 2.3.0
2. Create a new feature containing the ipojo bundle. The easiest way is
probably to add the following lines to the enterprise-2.3.0-features.xml in
the "system" folder:
<feature name="ipojo">
<bundle>mvn:org.apache.felix/org.apache.felix.ipojo/1.8.2</bundle>
</feature>
3. Edit the etc/org.apache.karaf.features.cfg as follows:
featuresBoot=config,ssh,management,kar,jpa,ipojo
Some other obeservations:
- If I switch the jpa and the ipojo features I get other exceptions.
- The org.apache.aries.util bundle is part of the jpa feature (start level
30) but it is also present in startup.properties (start level 20).
- If I remove the org.apache.aries.util bundle from the jpa feature then
things seem to work.
- If I install ipojo by using startup.properties instead of using a feature
then things seem to work.
The last two observations might imply that org.apache.aries.util and ipojo
must be resolved at the same time (start levels do not make any difference).
I'm not sure if this post belongs here or in Felix mailing list. However,
since it seems to involve the enterprise features that is part of Karaf I
try here first. It's very confusing. Although I have found a couple of
work-arounds I don't feel comfortable using them since I don't know what is
happening.
Does anyone have a clue?
/Bengt
