Re: [jnc-users] Undefined reference :: Log4j

[Marco T. <mt...@gm...>]

Hey Ariel

chosen forsaken wrote:
> Hi,
> 
> I'm trying to create a simple program that uses log4j. Unfortunately, I 
> can't seem to make it work. I've used 2 methods in creating the EXE:
> 
> A. Using the JNC UI:
>    1. In Step 1, I indicated my the .java file of my program (in Files), 
> the directory of my program (in Directories), and the log4j jar located 
> in my program's directory (in Archives).
>    2. In Step 2, I set the main class by selecting my (only) java file. 
> I only checked the Windows checkbox, and left everything else blank.
>    3. In Step 3, the only thing I enabled is the Show used commands 
> checkbox.
>    4. When I try to compile my project (Step 4) I get an error :
> 
>       org/apache/log4j/jmx/Agent.java: In class 
> 'org.apache.log4j.jmx.Agent':
>     org/apache/log4j/jmx/Agent.java: In method 
> 'org.apache.log4j.jmx.Agent.start()':
>     org/apache/log4j/jmx/Agent.java:0: error: cannot find file for class 
> com.sun.jdmk.comm.HtmlAdaptorServer
>     org/apache/log4j/jmx/Agent.java:0: confused by earlier errors, 
> bailing out
> 
>       while  it's "processing log4j-1.2.13.jar". It seems that no .o 
> file for my program was generated since it hasn't processed my program yet.

Try using "-findirect-dispatch" as custom GCJ flag in the GUI.

> B. Using the command line
>    1. I tried compiling my .java file using the command:
>        gcj -c -g --classpath=C:\logtest\log4j-1.2.13.jar LogTest.java -o 
> LogTest.o
>       and it generated a LogTest.o file.
>    2. Then I tried to build the EXE using the command:
>        gcj --main=test.gcj.LogTest -fjni -Llibs/win 
> -Ilibs/win/gui/gui.jar -o C:\logtest\LogTest.exe -s -O2 -ljncNoGui 
> -ljncNoJce -ljncTrial -IC:\logtest LogTest.
>       and it shows an error :
>    LogTest.o: In function `ZN4test3gcj7LogTest18__U3c_clinit(unsigned 
> e_E, __complex void, void)':C:/logtest/test/gcj/LogTest.java:8: 
> undefined reference to `org::a
> ache::log4j::Logger* 
> org::apache::log4j::Logger::getLogger(java::lang::String*)'
> :C:/logtest/test/gcj/LogTest.java:8: undefined reference to 
> `org::apache::log4j::Logger::class$'
> collect2: ld returned 1 exit status

Don't work with the command line version unless you know exactly what 
you're doing. You'll be well off using the GUI.


Marco