ide - eclipse doesn't start, no errors shown -

i have had eclipse working , completed projects already. however, eclipse not responding no obvious reason (doesn't start @ all).

the error getting in .log file, , have included previous errors, is:

. . .  !entry org.eclipse.wst.xml.core 4 4 2014-05-06 23:58:03.611 !message istructureddocumentregion management failed. !stack 0 org.eclipse.wst.xml.core.internal.document.structureddocumentregionmanagementexception: istructureddocumentregion management failed.     @ org.eclipse.wst.xml.core.internal.document.xmlmodelparser.removestructureddocumentregion(xmlmodelparser.java:2249)     @ org.eclipse.wst.xml.core.internal.document.xmlmodelparser.removestructureddocumentregion(xmlmodelparser.java:2281)     @ org.eclipse.wst.xml.core.internal.document.xmlmodelparser.replacestructureddocumentregions(xmlmodelparser.java:2339)     @ org.eclipse.wst.xml.core.internal.document.dommodelimpl.nodesreplaced(dommodelimpl.java:737)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument._fireevent(basicstructureddocument.java:600)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument.firestructureddocumentevent(basicstructureddocument.java:1198)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument.internalreplacetext(basicstructureddocument.java:1979)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument.replacetext(basicstructureddocument.java:2423)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument.replacetext(basicstructureddocument.java:2408)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument.access$2(jobsafestructureddocument.java:1)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument$3.run(jobsafestructureddocument.java:141)     @ org.eclipse.core.runtime.saferunner.run(saferunner.java:42)     @ org.eclipse.wst.sse.ui.editorexecutioncontext.execute(editorexecutioncontext.java:149)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument.replacetext(jobsafestructureddocument.java:144)     @ org.eclipse.wst.sse.core.internal.text.basicstructureddocument.replace(basicstructureddocument.java:2368)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument.access$0(jobsafestructureddocument.java:1)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument$1.run(jobsafestructureddocument.java:103)     @ org.eclipse.core.runtime.saferunner.run(saferunner.java:42)     @ org.eclipse.wst.sse.ui.editorexecutioncontext.execute(editorexecutioncontext.java:149)     @ org.eclipse.wst.sse.core.internal.text.jobsafestructureddocument.replace(jobsafestructureddocument.java:106)     @ org.eclipse.jface.text.projection.projectiontextstore.replace(projectiontextstore.java:111)     @ org.eclipse.jface.text.abstractdocument.replace(abstractdocument.java:1184)     @ org.eclipse.jface.text.abstractdocument.replace(abstractdocument.java:1210)     @ org.eclipse.jface.text.projection.projectiondocument.replace(projectiondocument.java:629)     @ org.eclipse.jface.text.defaultdocumentadapter.replacetextrange(defaultdocumentadapter.java:248)     @ org.eclipse.swt.custom.styledtext.modifycontent(styledtext.java:7198)     @ org.eclipse.swt.custom.styledtext.sendkeyevent(styledtext.java:8030)     @ org.eclipse.swt.custom.styledtext.dodelete(styledtext.java:2549)     @ org.eclipse.swt.custom.styledtext.invokeaction(styledtext.java:7011)     @ org.eclipse.jface.text.source.projection.projectionviewer.dooperation(projectionviewer.java:1470)     @ org.eclipse.wst.sse.ui.internal.structuredtextviewer.dooperation(structuredtextviewer.java:644)     @ org.eclipse.ui.texteditor.textoperationaction$1.run(textoperationaction.java:128)     @ org.eclipse.swt.custom.busyindicator.showwhile(busyindicator.java:70)     @ org.eclipse.ui.texteditor.textoperationaction.run(textoperationaction.java:126)     @ org.eclipse.jface.action.action.runwithevent(action.java:499)     @ org.eclipse.jface.commands.actionhandler.execute(actionhandler.java:119)     @ org.eclipse.ui.internal.handlers.e4handlerproxy.execute(e4handlerproxy.java:90)     @ sun.reflect.generatedmethodaccessor30.invoke(unknown source)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source)     @ java.lang.reflect.method.invoke(unknown source)     @ org.eclipse.e4.core.internal.di.methodrequestor.execute(methodrequestor.java:56)     @ org.eclipse.e4.core.internal.di.injectorimpl.invokeusingclass(injectorimpl.java:243)     @ org.eclipse.e4.core.internal.di.injectorimpl.invoke(injectorimpl.java:224)     @ org.eclipse.e4.core.contexts.contextinjectionfactory.invoke(contextinjectionfactory.java:132)     @ org.eclipse.e4.core.commands.internal.handlerservicehandler.execute(handlerservicehandler.java:167)     @ org.eclipse.core.commands.command.executewithchecks(command.java:499)     @ org.eclipse.core.commands.parameterizedcommand.executewithchecks(parameterizedcommand.java:508)     @ org.eclipse.e4.core.commands.internal.handlerserviceimpl.executehandler(handlerserviceimpl.java:213)     @ org.eclipse.e4.ui.bindings.keys.keybindingdispatcher.executecommand(keybindingdispatcher.java:285)     @ org.eclipse.e4.ui.bindings.keys.keybindingdispatcher.press(keybindingdispatcher.java:504)     @ org.eclipse.e4.ui.bindings.keys.keybindingdispatcher.processkeyevent(keybindingdispatcher.java:555)     @ org.eclipse.e4.ui.bindings.keys.outoforderlistener.handleevent(outoforderlistener.java:70)     @ org.eclipse.swt.widgets.eventtable.sendevent(eventtable.java:84)     @ org.eclipse.swt.widgets.widget.sendevent(widget.java:1057)     @ org.eclipse.swt.widgets.widget.sendevent(widget.java:1081)     @ org.eclipse.swt.widgets.widget.sendevent(widget.java:1066)     @ org.eclipse.swt.widgets.widget.sendkeyevent(widget.java:1108)     @ org.eclipse.swt.widgets.widget.sendkeyevent(widget.java:1104)     @ org.eclipse.swt.widgets.widget.wmkeydown(widget.java:1827)     @ org.eclipse.swt.widgets.control.wm_keydown(control.java:4975)     @ org.eclipse.swt.widgets.canvas.wm_keydown(canvas.java:429)     @ org.eclipse.swt.widgets.control.windowproc(control.java:4643)     @ org.eclipse.swt.widgets.canvas.windowproc(canvas.java:340)     @ org.eclipse.swt.widgets.display.windowproc(display.java:4990)     @ org.eclipse.swt.internal.win32.os.callwindowprocw(native method)     @ org.eclipse.swt.internal.win32.os.callwindowproc(os.java:2443)     @ org.eclipse.swt.internal.bidiutil.windowproc(bidiutil.java:639)     @ org.eclipse.swt.internal.win32.os.dispatchmessagew(native method)     @ org.eclipse.swt.internal.win32.os.dispatchmessage(os.java:2549)     @ org.eclipse.swt.widgets.display.readanddispatch(display.java:3757)     @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine$9.run(partrenderingengine.java:1113)     @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332)     @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine.run(partrenderingengine.java:997)     @ org.eclipse.e4.ui.internal.workbench.e4workbench.createandrunui(e4workbench.java:138)     @ org.eclipse.ui.internal.workbench$5.run(workbench.java:610)     @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332)     @ org.eclipse.ui.internal.workbench.createandrunworkbench(workbench.java:567)     @ org.eclipse.ui.platformui.createandrunworkbench(platformui.java:150)     @ org.eclipse.ui.internal.ide.application.ideapplication.start(ideapplication.java:124)     @ org.eclipse.equinox.internal.app.eclipseapphandle.run(eclipseapphandle.java:196)     @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.runapplication(eclipseapplauncher.java:110)     @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.start(eclipseapplauncher.java:79)     @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:354)     @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:181)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(unknown source)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source)     @ java.lang.reflect.method.invoke(unknown source)     @ org.eclipse.equinox.launcher.main.invokeframework(main.java:636)     @ org.eclipse.equinox.launcher.main.basicrun(main.java:591)     @ org.eclipse.equinox.launcher.main.run(main.java:1450)     @ org.eclipse.equinox.launcher.main.main(main.java:1426) !session 2014-05-09 21:45:15.968 ----------------------------------------------- eclipse.buildid=4.3.0.i20130605-2000 java.version=1.7.0_51 java.vendor=oracle corporation bootloader constants: os=win32, arch=x86_64, ws=win32, nl=en_us framework arguments:  -product org.eclipse.epp.package.jee.product command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product  !entry org.eclipse.egit.ui 2 0 2014-05-09 21:46:20.594 !message warning: egit couldn't detect installation path "gitprefix" of native git. hence egit can't respect system level git settings might configured in ${gitprefix}/etc/gitconfig under native git installation directory. important of these settings core.autocrlf. git windows default sets parameter true in system level configuration. git installation location can configured on team > git > configuration preference page's 'system settings' tab. warning can switched off on team > git > confirmations , warnings preference page.  !entry org.eclipse.egit.ui 2 0 2014-05-09 21:46:20.711 !message warning: environment variable home not set. following directory used store git user global configuration , define default location store repositories: 'c:\users\emad'. if not correct please set home environment variable , restart eclipse. otherwise git windows , egit might behave differently since see different configuration options. warning can switched off on team > git > confirmations , warnings preference page. 

i have checked environment variables , have them follows:

classpath: ; c:\tomcat7\lib\servlet-api.jar;c:\tomcat7\lib\jsp-api.jar;c:\tomcat7\lib\el- api.jar;c:\tomcat7\servlets+jsp;%classpath%;

java_home: c:\program files\java\jdk1.7.0_51\bin

path: c:\oraclexe\app\oracle\product\11.2.0\server\bin;;%systemroot%\system32;%systemroot%;%systemroot%\system32\wbem;%systemroot%\system32\windowspowershell\v1.0\;c:\program files\microsoft\web platform installer\;c:\program files (x86)\microsoft asp.net\asp.net web pages\v1.0\;c:\program files (x86)\windows kits\8.0\windows performance toolkit\;c:\program files\microsoft sql server\110\tools\binn\;c:\program files (x86)\pharossystems\core;c:\program files\java\jdk1.7.0_51\bin\

i have also, started eclipse.ini command -clean , deleted .\metadata\.plugins\org.eclipse.e4.workbench\workbench.xmi while restarted machine after each attempt. downloaded fresh version of eclipse different mirror. suggestion appreciated.

create environment variable below!

go : right click on computer-> properties-> advance settings -> environmental variables->

• path -
• c:\program files (x86)\java\jdk1.6.0_02\bin -

  - -

if problem doen't solve ..try re-install jdk , u see no problem there in opening eclipse.