Java

Lomboz J2EE Plugin から，Tomcat 5.0を起動する†

Eclipse で Lomboz J2EE Plugin を使うと，Lomboz Pluginから，Tomcat を起動し，Eclipseのデバッガでデバッグしたりすることができるようになります．

しかし，Tomcat 5.0.x では，次のようなエラーが出て，Eclipse から Tomcat を起動できません．

Bootstrap: Class loader creation threw exception
java.lang.ExceptionInInitializerError
	at org.apache.catalina.startup.ClassLoaderFactory.<clinit>(ClassLoaderFactory.java:63)
	at org.apache.catalina.startup.Bootstrap.initClassLoaders(Bootstrap.java:103)
	at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:196)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:402)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException) (Caused by org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException))
	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.tomcat.util.compat.JdkCompat.<clinit>(JdkCompat.java:55)
	... 4 more
Caused by: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException)
	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
	at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
	... 8 more
Caused by: java.lang.NullPointerException
	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
	... 9 more

どうやら，Lomboz が持っているサーバ定義ファイルに間違いがあるのが原因のようです．

${ECLIPSE_HOME}/plugins/com.objectlearn.jdt.j2ee_3.0.1/servers/tomcat50x.server を編集し，以下の場所を修正します．

修正前：

-Djava.endorsed.dirs="${serverRootDirectory}/bin;${serverRootDirectory}/common/endorsed

修正後：

-Djava.endorsed.dirs="${serverRootDirectory}/common/endorsed"

２カ所あるので，両方とも修正します．

参考ページ†

• ObjectWeb Forge: Help