Stacktrace when upgrading to #3281

Original exception: com.intellij.lang.Language.findByID(Ljava/lang/String;)Lcom/intellij/lang/Language;
java.lang.NoSuchMethodError: com.intellij.lang.Language.findByID(Ljava/lang/String;)Lcom/intellij/lang/Language;
at org.codehaus.groovy.intellij.language.GroovyLanguage.createLanguage(GroovyLanguage.java:37)
at org.codehaus.groovy.intellij.GroovySupportLoader.<clinit>(GroovySupportLoader.java:30)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:219)
at com.intellij.openapi.components.impl.ComponentManagerImpl.loadComponentsConfiguration(ComponentManagerImpl.java:222)
at com.intellij.openapi.application.impl.ApplicationImpl.c(ApplicationImpl.java:353)
at com.intellij.openapi.application.impl.ApplicationImpl.<init>(ApplicationImpl.java:279)
at com.intellij.openapi.application.ex.ApplicationManagerEx.createApplication(ApplicationManagerEx.java:1)
at com.intellij.idea.IdeaApplication.<init>(IdeaApplication.java:3)
at com.intellij.idea.Main.a(Main.java:47)
at com.intellij.idea.Main.access$000(Main.java:25)
at com.intellij.idea.Main$2.proceed(Main.java)
at com.intellij.ide.license.impl.IdeaLicense$1.proceed(IdeaLicense.java:3)
at com.intellij.ide.license.policy.Proceed.check(Proceed.java:1)
at com.intellij.ide.license.impl.LicenseAuthorizorImpl.checkPolicy(LicenseAuthorizorImpl.java:7)
at com.intellij.ide.license.impl.LicenseAuthorizorImpl.checkPolicy(LicenseAuthorizorImpl.java:4)
at com.intellij.ide.license.impl.IdeaLicense.startUp(IdeaLicense.java:22)
at com.intellij.idea.Main.mainImpl(Main.java:3)
at com.intellij.idea.Main.start(Main.java:43)
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:324)
at com.intellij.ide.plugins.PluginManager$5.run(PluginManager.java:7)
at java.lang.Thread.run(Thread.java:534)

com.intellij.diagnostic.PluginException: com.intellij.lang.Language.findByID(Ljava/lang/String;)Lcom/intellij/lang/Language; [Plugin: Groovy Integration]
at com.intellij.openapi.components.impl.ComponentManagerImpl.loadComponentsConfiguration(ComponentManagerImpl.java:171)
at com.intellij.openapi.application.impl.ApplicationImpl.c(ApplicationImpl.java:353)
at com.intellij.openapi.application.impl.ApplicationImpl.<init>(ApplicationImpl.java:279)
at com.intellij.openapi.application.ex.ApplicationManagerEx.createApplication(ApplicationManagerEx.java:1)
at com.intellij.idea.IdeaApplication.<init>(IdeaApplication.java:3)
at com.intellij.idea.Main.a(Main.java:47)
at com.intellij.idea.Main.access$000(Main.java:25)
at com.intellij.idea.Main$2.proceed(Main.java)
at com.intellij.ide.license.impl.IdeaLicense$1.proceed(IdeaLicense.java:3)
at com.intellij.ide.license.policy.Proceed.check(Proceed.java:1)
at com.intellij.ide.license.impl.LicenseAuthorizorImpl.checkPolicy(LicenseAuthorizorImpl.java:7)
at com.intellij.ide.license.impl.LicenseAuthorizorImpl.checkPolicy(LicenseAuthorizorImpl.java:4)
at com.intellij.ide.license.impl.IdeaLicense.startUp(IdeaLicense.java:22)
at com.intellij.idea.Main.mainImpl(Main.java:3)
at com.intellij.idea.Main.start(Main.java:43)
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:324)
at com.intellij.ide.plugins.PluginManager$5.run(PluginManager.java:7)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NoSuchMethodError: com.intellij.lang.Language.findByID(Ljava/lang/String;)Lcom/intellij/lang/Language;
at org.codehaus.groovy.intellij.language.GroovyLanguage.createLanguage(GroovyLanguage.java:37)
at org.codehaus.groovy.intellij.GroovySupportLoader.<clinit>(GroovySupportLoader.java:30)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:219)
at com.intellij.openapi.components.impl.ComponentManagerImpl.loadComponentsConfiguration(ComponentManagerImpl.java:222)
... 20 more