Clearly, Log4j cannot find your appender. Make sure your appender
exists in the classpath where Log4j can find it. And make sure that
Log4j isn't in a parent classloader while the custom appender is in a
child. Classloader can look up, not down.
Jake
At 01:28 AM 3/28/2006, you wrote:
>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(Option
>Converter.java:317)
> at
>org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConver
>ter.java:120)
> at
>org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurat
>or.java:629)
> at
>org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurat
>or.java:612)
> at
>org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyCo
>nfigurator.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(OptionConv
>erter.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
>
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: [EMAIL PROTECTED]
>For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
