Reputation: 21
java code
public static synchronized void init(String log4jXMLPath) //throws ServletException
{
try
{
if (!initialized) // set the global RepositorySelector
{
defaultRepository = LogManager.getLoggerRepository();
RepositorySelector theSelector = new AppRepositorySelector();
**LogManager.setRepositorySelector(theSelector, guard);**
initialized = true;
}
Hierarchy hierarchy = new Hierarchy(new RootLogger(Level.DEBUG));
//loadLog4JConfig(servletContext, hierarchy);
loadLog4JConfig(hierarchy, log4jXMLPath);
ClassLoader loader = Thread.currentThread().getContextClassLoader();
repositories.put(loader, hierarchy);
}
catch (Exception e)
{
e.printStackTrace();
}
}
LogManager.setRepositorySelector(theSelector, guard); this line in java code throwing an error
stacktrace
18:17:11,189 ERROR [stderr] (MSC service thread 1-2) java.lang.IllegalArgumentException: Attempted to reset the LoggerFactory without possessing the guard.
18:17:11,190 ERROR [stderr] (MSC service thread 1-2) at org.apache.log4j.LogManager.setRepositorySelector(LogManager.java:164)
18:17:11,191 ERROR [stderr] (MSC service thread 1-2) at com.mportal.logger.api.AppRepositorySelector.init(AppRepositorySelector.java:73)
18:17:11,192 ERROR [stderr] (MSC service thread 1-2) at com.mportal.logger.api.MPLoggerImpl.loadLogInstance(MPLoggerImpl.java:64)
18:17:11,192 ERROR [stderr] (MSC service thread 1-2) at com.mportal.logger.api.MPLoggerImpl.<init>(MPLoggerImpl.java:38)
18:17:11,192 ERROR [stderr] (MSC service thread 1-2) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
18:17:11,193 ERROR [stderr] (MSC service thread 1-2) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
18:17:11,194 ERROR [stderr] (MSC service thread 1-2) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
18:17:11,194 ERROR [stderr] (MSC service thread 1-2) at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
How to solve this one? Please give solutions.
Upvotes: 0
Views: 1103
Reputation: 5315
LogManager.setRepositorySelector(theSelector, guard);
You can only use one guard, using different guard objects will result in the observerd error:
java.lang.IllegalArgumentException: Attempted to reset the LoggerFactory without possessing the guard.
It should be possible to pass null
as a parameter to the function. Or simply hold a reference to the initial set guard.
The documentation states:
Initally the guard is null. If the guard is null, then invoking this method sets the logger factory and the guard. Following invocations will throw a IllegalArgumentException, unless the previously set guard is passed as the second parameter.
Upvotes: 1