Erro na instalação do eclipse

“wilder_lopes”:

Olá pessoal.
Sou iniciante em java e esse é o meu primeiro post.

Instalei todo o ambiente sem problemas em casa. Hoje, estou tentando instalar aqui no trabalho pra dar uma estudada nas horas vagas, mas tá dando um erro no eclipse q não consegui achar procurando nos foruns.

ao tentar executar o arquivo eclipse.exe dá a seguinte mensagem de erro:

!SESSION Mai 06, 2005 16:02:18.984 ---------------------------------------------
eclipse.buildId=I200406251208
java.version=1.3.1_01
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=pt_BR

!ENTRY org.eclipse.osgi Mai 06, 2005 16:02:18.984
!MESSAGE Error registering XML parser services.
!STACK 0
java.lang.ClassNotFoundException: javax.xml.parsers.SAXParserFactory
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.eclipse.core.runtime.adaptor.EclipseAdaptor.registerEndorsedXMLParser(EclipseAdaptor.java:272)
	at org.eclipse.core.runtime.adaptor.EclipseAdaptor.frameworkStart(EclipseAdaptor.java:253)
	at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:61)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:958)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:954)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:937)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:553)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:477)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:273)
	at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:243)
	at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:166)
	at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:425)
	at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:216)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:183)
	at org.eclipse.core.launcher.Main.run(Main.java:644)
	at org.eclipse.core.launcher.Main.main(Main.java:628)

!ENTRY org.eclipse.osgi Mai 06, 2005 16:02:19.109
!MESSAGE Startup error
!STACK 1
java.lang.NoClassDefFoundError: org/xml/sax/helpers/DefaultHandler
	at java.lang.ClassLoader.defineClass0(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at org.eclipse.core.runtime.adaptor.PluginConverterImpl.parsePluginInfo(PluginConverterImpl.java:552)
	at org.eclipse.core.runtime.adaptor.PluginConverterImpl.fillPluginInfo(PluginConverterImpl.java:111)
	at org.eclipse.core.runtime.adaptor.PluginConverterImpl.convertManifest(PluginConverterImpl.java:655)
	at org.eclipse.core.runtime.adaptor.EclipseBundleData.generateManifest(EclipseBundleData.java:219)
	at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadManifest(EclipseBundleData.java:177)
	at org.eclipse.core.runtime.adaptor.EclipseBundleData.getManifest(EclipseBundleData.java:159)
	at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadFromManifest(EclipseBundleData.java:266)
	at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultBundleData.initializeNewBundle(DefaultBundleData.java:77)
	at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultAdaptor$1.begin(DefaultAdaptor.java:451)
	at org.eclipse.osgi.framework.internal.core.Framework.installWorkerPrivileged(Framework.java:746)
	at org.eclipse.osgi.framework.internal.core.Framework$2.run(Framework.java:664)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.eclipse.osgi.framework.internal.core.Framework.installWorker(Framework.java:715)
	at org.eclipse.osgi.framework.internal.core.Framework.installBundle(Framework.java:659)
	at org.eclipse.osgi.framework.internal.core.BundleContextImpl.installBundle(BundleContextImpl.java:219)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.installBundles(EclipseStarter.java:800)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.loadBasicBundles(EclipseStarter.java:429)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:222)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)
	at java.lang.reflect.Method.invoke(Native Method)
	at org.eclipse.core.launcher.Main.basicRun(Main.java:183)
	at org.eclipse.core.launcher.Main.run(Main.java:644)
	at org.eclipse.core.launcher.Main.main(Main.java:628)

!ENTRY org.eclipse.osgi Mai 06, 2005 16:02:19.109
!MESSAGE Bundle initial@reference:file:c:/wilder/downloads/eclipse/eclipse/plugins/org.eclipse.core.runtime_3.0.0/ [1] was not resolved.

Ja estou com o ambiente funcionando. Ao menos, criei uma classe simples e compilei e executei via prompt, sem problemas.

Alguém pode ajudar?

Estou utilizando j2sdk1.4.2_05 e eclipse 3.0

Desde já agradeço!

Meu caro,

Eu reinstalaria a JDK e o Eclipse.
E dá uma olhada nas variáveis de ambiente.

Fabio.

Olá Fábio.

Consegui resolver! O problema aconteceu devido a instalação do oracle, anterior a minha instalação do jsdk. como o oracle precisa de java, ele setou duas variáveis de ambiente, apontando para pastas jre dele. Tive q excluir essas variáveis e deixar apenas minha variável correta.

Obrigado.