My head hurts from banging it against the wall. This is from an installation that was working and is now broken.
javac -version output:
javac 1.6.0_25

LOG FILE:
!SESSION 2012-07-17 14:07:38.453 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_25
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Command-line arguments:  -os win32 -ws win32 -arch x86_64

!ENTRY org.eclipse.equinox.app 0 0 2012-07-17 14:07:47.187
!MESSAGE Product org.talend.rcp.branding.tisenterprise.product could not be found.

!ENTRY org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.ant.launching.nl_ru_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.ant.launching.nl_ru 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.ant.launching_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.ui.externaltools.nl_ja_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.ui.externaltools.nl_ja 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.ui.externaltools_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.event.nl_de_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.event.nl_de 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.event_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.gtk.solaris.sparc.nl_es_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.gtk.solaris.sparc.nl_es 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.gtk.solaris.sparc_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.cocoa.macosx.nl_zh_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.cocoa.macosx.nl_zh 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.cocoa.macosx_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.event.nl_zh_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.event.nl_zh 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.event_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.ui.externaltools.nl_zh_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.ui.externaltools.nl_zh 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.ui.externaltools_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.xtext.ui_1.0.1.v201008251220.jar was not resolved.
!SUBENTRY 2 org.eclipse.xtext.ui 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing required bundle org.eclipse.core.resources_3.4.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.gtk.solaris.sparc.nl_ja_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.gtk.solaris.sparc.nl_ja 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.gtk.solaris.sparc_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.motif.solaris.sparc.nl_ru_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.motif.solaris.sparc.nl_ru 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.motif.solaris.sparc_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.gtk.linux.x86.nl_pt_BR_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.gtk.linux.x86.nl_pt_BR 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.gtk.linux.x86_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.wst.ws.service.policy_1.0.203.v201004211732.jar was not resolved.
!SUBENTRY 2 org.eclipse.wst.ws.service.policy 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing required bundle org.eclipse.core.resources_[3.3.0,4.0.0).
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.gtk.linux.ppc.nl_de_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.gtk.linux.ppc.nl_de 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.gtk.linux.ppc_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.equinox.launcher.win32.win32.x86.nl_ru_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.launcher.win32.win32.x86.nl_ru 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.equinox.launcher.win32.win32.x86_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.core.net.linux.x86.nl_fr_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.core.net.linux.x86.nl_fr 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.core.net.linux.x86_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.core.net.linux.x86.nl_zh_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.core.net.linux.x86.nl_zh 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.core.net.linux.x86_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.jsch.ui.nl_zh_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.jsch.ui.nl_zh 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.jsch.ui_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.core.externaltools.nl_ru_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.core.externaltools.nl_ru 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.core.externaltools_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.platform.nl_es_3.6.0.v20100814043401.jar was not resolved.
!SUBENTRY 2 org.eclipse.platform.nl_es 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing host org.eclipse.platform_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-07-17 14:07:47.703
!MESSAGE Bundle reference:file:plugins/org.eclipse.gmf.runtime.draw2d.ui.render.awt_1.4.1.v20100720-0030.jar was not resolved.
!SUBENTRY 2 org.eclipse.gmf.runtime.draw2d.ui.render.awt 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing required bundle org.apache.batik.util_[1.6.0,1.7.0).
!SUBENTRY 2 org.eclipse.gmf.runtime.draw2d.ui.render.awt 2 0 2012-07-17 14:07:47.703
!MESSAGE Missing required bundle org.apache.batik.svggen_[1.6.0,1.7.0).
!SUBENTRY 2 org.eclipse.gmf.runtime.draw2d.ui.render.awt 2 0 2012-07-17 14:07:47.703

!ENTRY org.eclipse.osgi 4 0 2012-07-17 14:07:47.984
!MESSAGE Application error
!STACK 1
java.lang.RuntimeException: No application id has been found.
    at org.eclipse.equinox.internal.app.EclipseAppContainer.startDefaultApp(EclipseAppContainer.java:242)
    at org.eclipse.equinox.internal.app.MainApplicationLauncher.run(MainApplicationLauncher.java:29)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1407)