I am using PHP PDT plugin in 3.8 and I get this stacktrace in terminal:
org.eclipse.core.runtime.CoreException: Plug-in org.eclipse.php.ui was unable to load class org.eclipse.wst.html.internal.validation.HTMLValidator.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:176)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createExecutableExtension(ValidatorMetaData.java:151)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createExtension(ValidatorMetaData.java:173)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createValidator(ValidatorMetaData.java:196)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:260)
at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:697)
Caused by: java.lang.ClassNotFoundException: org.eclipse.wst.html.internal.validation.HTMLValidator
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:340)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1212)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
... 10 more
Exception in thread "org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor" java.lang.IllegalArgumentException: validator cannot be null
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.<init>(ReconcileStepForValidator.java:77)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:262)
at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:697)
org.eclipse.core.runtime.CoreException: Plug-in org.eclipse.php.ui was unable to load class org.eclipse.wst.html.internal.validation.HTMLValidator.
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:176)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createExecutableExtension(ValidatorMetaData.java:151)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createExtension(ValidatorMetaData.java:173)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorMetaData.createValidator(ValidatorMetaData.java:196)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:260)
at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:697)
Caused by: java.lang.ClassNotFoundException: org.eclipse.wst.html.internal.validation.HTMLValidator
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:340)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:229)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1212)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
... 10 more
Exception in thread "org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor" java.lang.IllegalArgumentException: validator cannot be null
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ReconcileStepForValidator.<init>(ReconcileStepForValidator.java:77)
at org.eclipse.wst.sse.ui.internal.reconcile.validator.ValidatorStrategy.reconcile(ValidatorStrategy.java:262)
at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:321)
at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:258)
at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor$BackgroundThread.run(DirtyRegionProcessor.java:697)
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: eclipse (not installed)
ProcVersionSignature: Ubuntu 3.5.0-1.1-generic 3.5.0-rc3
Uname: Linux 3.5.0-1-generic i686
ApportVersion: 2.5.2-0ubuntu1
Architecture: i386
Date: Mon Sep 17 22:28:22 2012
InstallationMedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=es_ES.UTF-8
SHELL=/bin/bash
SourcePackage: eclipse
UpgradeStatus: Upgraded to quantal on 2012-06-05 (104 days ago)
modified.conffile..etc.eclipse.ini: [modified]
mtime.conffile..etc.eclipse.ini: 2012-06-27T00:26:25.238165
