You need a Log4J on the classpath I think..."Caused by java.lang.NoClassDefFoundError: org/apache/log4j/Category"
Cheers Tim On Fri, Jul 11, 2008 at 7:13 PM, Khanh Nguyen <[EMAIL PROTECTED]> wrote: > Hello, > > I am new to Hadoop. I am currently working on a small project for the > Internet Archive's web crawler, Heritrix. My work requires me to use > Hadoop but I am running in a strange problem. As soon as I add > hadoop-core.jar to my project build path, junit tests in Heritrix ran > into problem with loggers. Please help. > > If it helps, here is the stack trace > > java.lang.ExceptionInInitializerError > at org.archive.net.LaxURI.decode(LaxURI.java:125) > at org.archive.net.LaxURI.decode(LaxURI.java:112) > at org.archive.net.LaxURI.getPath(LaxURI.java:96) > at > org.archive.modules.extractor.ExtractorHTML.isHtmlExpectedHere(ExtractorHTML.java:686) > at > org.archive.modules.extractor.ExtractorHTML.shouldExtract(ExtractorHTML.java:543) > at > org.archive.modules.extractor.ContentExtractor.shouldProcess(ContentExtractor.java:74) > at org.archive.modules.Processor.process(Processor.java:121) > at > org.archive.modules.extractor.StringExtractorTestBase.testOne(StringExtractorTestBase.java:69) > at > org.archive.modules.extractor.StringExtractorTestBase.testExtraction(StringExtractorTestBase.java:48) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at junit.framework.TestCase.runTest(TestCase.java:164) > at junit.framework.TestCase.runBare(TestCase.java:130) > at junit.framework.TestResult$1.protect(TestResult.java:106) > at junit.framework.TestResult.runProtected(TestResult.java:124) > at junit.framework.TestResult.run(TestResult.java:109) > at junit.framework.TestCase.run(TestCase.java:120) > at junit.framework.TestSuite.runTest(TestSuite.java:230) > at junit.framework.TestSuite.run(TestSuite.java:225) > at > org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) > at > org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) > Caused by: org.apache.commons.logging.LogConfigurationException: > org.apache.commons.logging.LogConfigurationException: No suitable Log > constructor [Ljava.lang.Class;@1ea2dfe for > org.apache.commons.logging.impl.Log4JLogger (Caused by > java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by > org.apache.commons.logging.LogConfigurationException: No suitable Log > constructor [Ljava.lang.Class;@1ea2dfe for > org.apache.commons.logging.impl.Log4JLogger (Caused by > java.lang.NoClassDefFoundError: org/apache/log4j/Category)) > at > org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543) > at > org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235) > at > org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209) > at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351) > at > org.apache.commons.httpclient.util.EncodingUtil.<clinit>(EncodingUtil.java:54) > ... 27 more > Caused by: org.apache.commons.logging.LogConfigurationException: No > suitable Log constructor [Ljava.lang.Class;@1ea2dfe for > org.apache.commons.logging.impl.Log4JLogger (Caused by > java.lang.NoClassDefFoundError: org/apache/log4j/Category) > at > org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413) > at > org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529) > ... 31 more > Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category > at java.lang.Class.getDeclaredConstructors0(Native Method) > at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) > at java.lang.Class.getConstructor0(Class.java:2699) > at java.lang.Class.getConstructor(Class.java:1657) > at > org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410) > ... 32 more > Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Category > 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:276) > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) > ... 37 more > > > > > > Thanks. > > -k >
