Can you provide the list of jars you have on your classpath?
Ralph
On Mar 23, 2013, at 11:08 PM, wangke wrote:
> Hi all:
> I am trying to get this simple example working, I included all the jars in
> apache-log4j-2.0-beta4-bin
>
> import org.apache.logging.log4j.LogManager;import
> org.apache.logging.log4j.Logger; public class HelloWorld { private static
> Logger logger = LogManager.getLogger("HelloWorld"); public static void
> main(String[] args) { logger.info("Hello, World!"); }}
> Here is the exception I am getting in eclipse:Exception in thread "main"
> java.lang.NoClassDefFoundError: org/slf4j/spi/LocationAwareLogger
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:342)
> at test.HelloWorld.<clinit>(HelloWorld.java:7)
> Caused by: java.lang.ClassNotFoundException: org.slf4j.spi.LocationAwareLogger
> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> ... 3 more
> Then I've added slf4j-api-1.7.2.jar. I've still couldn't get it working with
> what looks like a non-terminated recursive loop eventually overflowing my
> stack.Exception in thread "main" java.lang.StackOverflowError
> at java.lang.Throwable.getStackTraceDepth(Native Method)
> at java.lang.Throwable.getOurStackTrace(Throwable.java:588)
> at java.lang.Throwable.getStackTrace(Throwable.java:582)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getContext(Log4JLoggerFactory.java:75)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:45)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> at
> org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:39)
> at
> org.slf4j.helpers.Log4JLoggerFactory.getLogger(Log4JLoggerFactory.java:52)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
> Can anybody pls help? Thanks a lot.
> Ke
>
>
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