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Posted to log4j-dev@logging.apache.org by bu...@apache.org on 2006/08/02 06:17:08 UTC
DO NOT REPLY [Bug 40159] New: - NullPointerException in org.apache.log4j.NDC.get
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Summary: NullPointerException in org.apache.log4j.NDC.get
Product: Log4j
Version: 1.2
Platform: Other
OS/Version: other
Status: NEW
Severity: normal
Priority: P2
Component: Other
AssignedTo: log4j-dev@logging.apache.org
ReportedBy: carnold@apache.org
Giesen Giesen wrote to log4j-users on 2006-07-10:
I sporadically get the following error when my JSF app starts up.
Anyone know what I can do? Would the 1.3 alpha version help? (I hate
to use prerelease software)
Exception sending context initialized event to listener instance of
class com.sun.faces.config.ConfigureListener
java.lang.NullPointerException
at org.apache.log4j.NDC.get(NDC.java:209)
at org.apache.log4j.spi.LoggingEvent.getNDC(LoggingEvent.java:238)
----
Google searching for NDC.get did find other mentions of NPE being thrown at the
same location. The stack trace is consistent with ht == null, however ht is
expected to be initialized at class load and is not changed in the log4j code
base, however the field is neither static or final so there is nothing
preventing client code from changing its value. The log4j 1.3 implementation is
substantially different.
The committed patch checks whether ht != null before calling get() and should
avoid the NPE, but would be nice to know the mechanism by which it got that way.
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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carnold@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution| |FIXED
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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christenseningrid@hotmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |christenseningrid@hotmail.co
| |m
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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bayard@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
------- Additional Comments From bayard@apache.org 2007-03-13 12:40 -------
Reopening so Steven's comment gets noticed.
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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------- Additional Comments From steven.rasschaert@telenet.be 2006-11-22 04:12 -------
Hello,
This problem does also occur in the MDC.
I got the NullPointerException in NDC.get() as mentioned here and now in the
MDC.get(). I think both are related to each other, so that's why I added this
comment here.
The exceptions are raised in my case, when I trigger a reload of a Tomcat
context which uses Log4j as the logging system.
Tomcat reloads the context and then:
- before Log4j 1.2.14: NullPointerException at NDC.get (as mentioned here)
- now: NullPointerException at MDC.get(). There propably the tlm==null.
Can this be fixed too with a "not-null-check" in the next release of Log4j as
was done with NDC.get()?
Thanks
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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carnold@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
------- Additional Comments From carnold@apache.org 2007-08-21 14:02 -------
Split off MDC issue as bug 43181 since 40159 was reported as resolved in log4j 1.2.14 release notes.
MDC fix committed in rev 568278.
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DO NOT REPLY [Bug 40159] - NullPointerException in org.apache.log4j.NDC.get
Posted by bu...@apache.org.
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carnold@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
------- Additional Comments From carnold@apache.org 2006-08-02 04:19 -------
Patch committed in rev 427881. Waiting for feedback before marking as closed.
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