请教高手在LINUX下面安装MYECLIPSE时候出现的问题

vp25

JDK为1。4版本的，eclisep3.1 在安装myeclisep4.1的时候出现一下错误
java.lang.NoClassDefFoundError: com.zerog.ia.installer.Main
at java.lang.Class.initializeClass (libgcj.so.7)
at java.lang.Class.forName (libgcj.so.7)
at java.lang.Class.forName (libgcj.so.7)
at com.zerog.lax.LAX.launch (DashoA8113)
at com.zerog.lax.LAX.main (DashoA8113)
Caused by: java.lang.ClassNotFoundException: com.apple.mrj.MRJOSType not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:/tmp/install.dir.3800/InstallerData/,file:/tmp/install.dir.3800/InstallerData/installer.zip], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass (libgcj.so.7)
at java.lang.ClassLoader.loadClass (libgcj.so.7)
at java.lang.ClassLoader.loadClass (libgcj.so.7)
at java.lang.Class.initializeClass (libgcj.so.7)
...4 more
哪位高手知道这是怎么一回事么？