Problems starting eclipse

Question

Eclipse does not start.The error message in the .log file is as follows:
!SESSION 2006-04-04 18:25:25.469 -----------------------------------------------
eclipse.buildId=I20050627-1435
java.version=1.5.0_06
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY org.eclipse.osgi 2006-04-04 18:25:30.436
!MESSAGE An error occurred while automatically activating bundle org.eclipse.core.resources (14).
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.core.internal.compatibility.PluginActivator.start() of bundle org.eclipse.core.resources.
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1013)
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:969)
     at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:321)
     at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:266)
     at org.eclipse.core.runtime.adaptor.EclipseClassLoader.findLocalClass(EclipseClassLoader.java:116)
     at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:337)
     at org.eclipse.osgi.framework.internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java:37)
     at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:386)
     at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:350)
     at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:78)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
     at org.eclipse.ui.internal.ide.model.WorkbenchAdapterFactory.<init>(WorkbenchAdapterFactory.java:35)
     at org.eclipse.ui.internal.ide.model.WorkbenchAdapterBuilder.registerAdapters(WorkbenchAdapterBuilder.java:33)
     at org.eclipse.ui.internal.ide.IDEWorkbenchAdvisor.initialize(IDEWorkbenchAdvisor.java:132)
     at org.eclipse.ui.application.WorkbenchAdvisor.internalBasicInitialize(WorkbenchAdvisor.java:172)
     at org.eclipse.ui.internal.Workbench.init(Workbench.java:1002)
     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1636)
     at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
     at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
     at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
     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:585)
     at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
     at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
     at org.eclipse.core.launcher.Main.run(Main.java:973)
     at org.eclipse.core.launcher.Main.main(Main.java:948)
Caused by: java.lang.OutOfMemoryError: Requested array size exceeds VM limit
Root exception:
java.lang.OutOfMemoryError: Requested array size exceeds VM limit
!ENTRY org.eclipse.osgi 2006-04-04 18:25:30.476
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/core/resources/IProject
     at org.eclipse.ui.internal.ide.model.WorkbenchAdapterFactory.<init>(WorkbenchAdapterFactory.java:35)
     at org.eclipse.ui.internal.ide.model.WorkbenchAdapterBuilder.registerAdapters(WorkbenchAdapterBuilder.java:33)
     at org.eclipse.ui.internal.ide.IDEWorkbenchAdvisor.initialize(IDEWorkbenchAdvisor.java:132)
     at org.eclipse.ui.application.WorkbenchAdvisor.internalBasicInitialize(WorkbenchAdvisor.java:172)
     at org.eclipse.ui.internal.Workbench.init(Workbench.java:1002)
     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1636)
     at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
     at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
     at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
     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:585)
     at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
     at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
     at org.eclipse.core.launcher.Main.run(Main.java:973)
     at org.eclipse.core.launcher.Main.main(Main.java:948)

Answer 1

Here's the problem:
java.lang.NoClassDefFoundError: org/eclipse/core/resources/IProject
The org.eclipse.core.resources.IProject is not in the application's classpath.
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