갑자기 자바 프로그램(eclipse, jedit)들이 안되는 현상?

어제까지 잘 쓰던 이클립스가 갑자기 실행되지 않습니다.
그 사이에 일어난 일중에 의심스러운 것은 낮에 정전이 됐었다는 겁니다.
정전후에 다시 컴퓨터를 켰더니 불여우 실행할때 평소 못보던 대화상자가 뜨더군요. (Defualt 설정이 어쩌구... 하던데)
생각없이 새로운 설정파일을 만들고 불여우를 켰습니다.
그랬더니 글꼴, 북마크등 기본 설정이 모두 초기화되어 있더군요.
이때부터 컴퓨터가 좀 이상하다 싶었는데...

오후에 Jedit을 깔려고
java -jre Jedit.jre
를 했는데 java 명령어가 없다고 나옵니다.
그래서 source /etc/profile 해서 설정파일 적용시킨다음 깔았구요.
Jedit를 실행했더니 아예 프로그램 실행이 안되고요.
혹시나 해서 이클립스를 실행해봤는데 다음과 같은 에러 로그가 만들어 지는군요.
무엇이 잘못된 것일까요?

/etc/profile 중 자바 설정
PATH="$PATH:/usr/local/jdk1.5.0_04/bin"
export JAVA_HOME="/usr/local/jdk1.5.0_04"

/usr/local/eclipse/configuration/1125570117288.log 의 내용
!SESSION 2005-09-01 01:22:39.139 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.fullversion=GNU libgcj 3.3.5 (Debian 1:3.3.5-8ubuntu2)
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=ko_KR
Command-line arguments: -os linux -ws gtk -arch x86

!ENTRY org.eclipse.osgi 2005-09-01 01:22:40.866
!MESSAGE Startup error
!STACK 1
java.lang.LinkageError: unexpected exception during linking: org.eclipse.core.runtime.adaptor.EclipseAdaptor
at java.lang.ClassLoader.resolveClass0(java.lang.Class) (/usr/lib/libgcj.so.4.0.0)
at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.4.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.4.0.0)
at java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.4.0.0)
at org.eclipse.core.runtime.adaptor.EclipseStarter.createAdaptor() (Unknown Source)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(java.lang.String[], java.lang.Runnable) (Unknown Source)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(java.lang.String[], java.lang.Runnable) (Unknown Source)
at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, boolean, java.lang.Class[], jvalue, jvalue) (/usr/lib/libgcj.so.4.0.0)
at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, boolean, java.lang.Class[], java.lang.Object[]) (/usr/lib/libgcj.so.4.0.0)
at java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (/usr/lib/libgcj.so.4.0.0)
at org.eclipse.core.launcher.Main.invokeFramework(java.lang.String[], java.net.URL[]) (Unknown Source)
at org.eclipse.core.launcher.Main.basicRun(java.lang.String[]) (Unknown Source)
at org.eclipse.core.launcher.Main.run(java.lang.String[]) (Unknown Source)
at org.eclipse.core.launcher.Main.main(java.lang.String[]) (Unknown Source)
Caused by: java.lang.InternalError: Unexpected exception while defining class org.eclipse.core.runtime.internal.adaptor.PluginParser
at java.lang.ClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.4.0.0)
at java.security.SecureClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.CodeSource) (/usr/lib/libgcj.so.4.0.0)
at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.4.0.0)
at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.4.0.0)
at _Jv_PrepareCompiledClass(java.lang.Class) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.resolveClass0(java.lang.Class) (/usr/lib/libgcj.so.4.0.0)
...13 more
Caused by: java.lang.ClassNotFoundException: org.xml.sax.helpers.DefaultHandler not found in [file:/usr/local/eclipse/plugins/org.eclipse.osgi_3.1.0.jar]
at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.4.0.0)
at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.4.0.0)
at _Jv_ClassReader.handleClassBegin(int, int, int) (/usr/lib/libgcj.so.4.0.0)
at _Jv_ClassReader.parse() (/usr/lib/libgcj.so.4.0.0)
at _Jv_DefineClass(java.lang.Class, byte[], int, int) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.defineClass0(java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.4.0.0)
at java.lang.ClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.4.0.0)
...20 more
!SESSION Thu Sep 01 01:22:40 GMT-09:00 2005 ------------------------------------
!ENTRY org.eclipse.core.launcher 4 0 2005-09-01 01:22:40.976
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.NullPointerException
at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, boolean, java.lang.Class[], jvalue, jvalue) (/usr/lib/libgcj.so.4.0.0)
at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, boolean, java.lang.Class[], java.lang.Object[]) (/usr/lib/libgcj.so.4.0.0)
at java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (/usr/lib/libgcj.so.4.0.0)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(java.lang.String[], java.lang.Runnable) (Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(java.lang.String[], java.net.URL[]) (Unknown Source)
at org.eclipse.core.launcher.Main.basicRun(java.lang.String[]) (Unknown Source)
at org.eclipse.core.launcher.Main.run(java.lang.String[]) (Unknown Source)
at gnu.gcj.runtime.FirstThread.call_main() (/usr/lib/libgcj.so.4.0.0)
at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.4.0.0)
at _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.4.0.0)
at _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.4.0.0)
at __libc_start_main (/lib/tls/i686/cmov/libc-2.3.2.so)