Hi,
I wrote a appender myself and now have Problems to integrate it into my
project. Im using Eclipse (just in case it makes any difference).
I have the appender in a package called
de.somecompany.someproject.MyAppender and a test class in the default
package.
My log4j.properties file looks like this:
log4j.rootLogger = DEBUG, EOA
#EOA
log4j.appender.EOA = de.somecompany.someproject.MyAppender
log4j.appender.EOA.filename=D://log.bin
When I try to run my testclass, I get the following errors:
log4j:ERROR Could not instantiate class
[de.somecompany.someproject.MyAppender].
java.lang.ClassNotFoundException: de.somecompany.someproject.MyAppender
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at org.apache.log4j.helpers.Loader.loadClass(Loader.java:178)
at
org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:317)
at
org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:120)
at
org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:629)
at
org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612)
at
org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509)
at
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415)
at
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441)
at
org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:468)
at org.apache.log4j.LogManager.<clinit>(LogManager.java:122)
at org.apache.log4j.Logger.getLogger(Logger.java:117)
at LogTest.<init>(LogTest.java:10)
at LogTest.main(LogTest.java:143)
log4j:ERROR Could not instantiate appender named "EOA".
log4j:WARN No appenders could be found for logger (LogTest).
log4j:WARN Please initialize the log4j system properly.
When i manually add the appender to the Logger like this:
private Logger LOGGER2 = Logger.getLogger("nochein Logger");
MyAppender eoa1 = new MyAppender();
the there is no problem. So where is my mistake? I hope someone of you
can help me!
regards, Johannes Elsinghorst
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