Hi all,
I faced a curious problem, when trying to use ConfigurationAdmin using the
two below approaches I get different results, the first one works (sometimes
it tries to get service too early, but otherwise OK). But with the second
one I get NullPointerException on this line (stack trace below):
Configuration configuration =
m_configAdmin.getConfiguration(testPid);
What is the difference between the two, am I doing something wrong?
1.)
m_configAdmin = (ConfigurationAdmin)
m_bundleContext.getService(m_bundleContext
.getServiceReference(ConfigurationAdmin.class.getName()));
---------------------------------------------------------------------------------------------
2.)
ServiceTracker tracker = new ServiceTracker(m_bundleContext,
ConfigurationAdmin.class.getName(), null);
tracker.open();
m_configAdmin =
(ConfigurationAdmin)tracker.waitForService(2000);
tracker.close();
Relevant part of stack trace:
java.lang.NullPointerException
at
org.apache.felix.cm.impl.ConfigurationAdminImpl.getConfiguration(ConfigurationAdminImpl.java:93)
at "my call"
Thanks in advance:
Tamás
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