CXF should use class' classloader for initialization of its loggers
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                 Key: CXF-2893
                 URL: https://issues.apache.org/jira/browse/CXF-2893
             Project: CXF
          Issue Type: Bug
    Affects Versions: 2.2.9
            Reporter: Hynek Mlnarik
            Priority: Trivial


The class org.apache.cxf.common.logging.LogUtils should attempt to use plain 
Class.forName(cname) if Class.forName(cname, true, 
Thread.currentThread().getContextClassLoader()) fails.

Rationale: Current thread might not be able to access cxf classes. Take as an 
example the following OSGi bundles:
1) bundle with a http server
2) bundle with CXF-based servlet SomeCXFServlet
A servlet SomeCXFServlet from bundle (2) has access to CXF via 
SomeCXFServlet.class.getClassloader(), similarly for LogUtils class via its 
classloader. However, its initialization is performed from http server thread 
that does not have access to bundle (2) classes. Initialization of a logger is 
hence also made from the http thread. CXF tries to load its 
org.apache.cxf.common.logging.*Logger classes - the attempt however fails 
because the current thread's classloader is used instead of the LogUtils'.

Solution: Try to load the class using Class.forName(cname) if 
Class.forName(cname, true, Thread.currentThread().getContextClassLoader()) 
fails.

Diff to solve this issue follows:

*** orig\org\apache\cxf\common\logging\LogUtils.java    2010-07-08 
13:13:36.000000000 +0200
--- new\org\apache\cxf\common\logging\LogUtils.java       2010-07-14 
08:43:01.481043100 +0200
***************
*** 92,102 ****
                  }
              }
              if (!StringUtils.isEmpty(cname)) {
!                 loggerClass = Class.forName(cname.trim(), true,
!                                             
Thread.currentThread().getContextClassLoader());
                  getLogger(LogUtils.class).fine("Using " + 
loggerClass.getName() + " for logging.");
              }
          } catch (Throwable ex) {
--- 92,108 ----
                  }
              }
              if (!StringUtils.isEmpty(cname)) {
!                 try {
!                     loggerClass = Class.forName(cname.trim(), true,
!                                                 
Thread.currentThread().getContextClassLoader());
!                 } catch (Throwable ex) {
!                     loggerClass = Class.forName(cname.trim());
!                 }
                  getLogger(LogUtils.class).fine("Using " + 
loggerClass.getName() + " for logging.");
              }
          } catch (Throwable ex) {


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