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ClassNotFound while testing the xtext generated editor [message #665201] Wed, 13 April 2011 15:56 Go to next message
Rubén Porras Campo is currently offline Rubén Porras CampoFriend
Messages: 67
Registered: July 2009
Member
Hi,

when I run (right click on the project com.foo.bttg.edit and choose run as "Eclipse Application") the project of the Xtext generated editor I get the following error after clicking on a source of the type .btc (sources with the extension btt and btpt are not registered, also I do not know how to fix this either):

Quote:
!SESSION 2011-04-13 17:40:49.656 -----------------------------------------------
eclipse.buildId=M20100909-0800
java.version=1.6.0_21
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_CH
Framework arguments: -product org.eclipse.sdk.ide
Command-line arguments: -product org.eclipse.sdk.ide -data C:\eclipse_workspaces\helios/../runtime-EclipseApplication -dev file:C:/eclipse_workspaces/helios/.metadata/.plugins/org.ecl ipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32 -arch x86 -consoleLog

!ENTRY org.eclipse.ui 4 0 2011-04-13 17:40:59.265
!MESSAGE Unable to create editor ID com.foo.dsl.Common: No editor descriptor for id com.foo.dsl.Common
!STACK 1
org.eclipse.ui.PartInitException: No editor descriptor for id com.foo.dsl.Common
at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi torReference.java:601)
at org.eclipse.ui.internal.EditorReference.createPart(EditorRef erence.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:595)
at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed itorAreaHelper.java:271)
at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito rManager.java:1429)
at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi torManager.java:942)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work benchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe nch.java:1567)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:196)
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(EclipseS tarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
!SUBENTRY 1 org.eclipse.ui 4 0 2011-04-13 17:40:59.281
!MESSAGE No editor descriptor for id com.foo.dsl.Common

!ENTRY org.eclipse.ui 2 2 2011-04-13 17:40:59.328
!MESSAGE Ignored attempt to add saveable that was already registered
!STACK 0
org.eclipse.core.runtime.AssertionFailedException: unknown saveable: org.eclipse.ui.internal.DefaultSaveable@1d3694a from part: org.eclipse.ui.internal.ErrorEditorPart@1d3694a
at org.eclipse.ui.internal.SaveablesList.logWarning(SaveablesLi st.java:187)
at org.eclipse.ui.internal.SaveablesList.addModel(SaveablesList .java:117)
at org.eclipse.ui.internal.SaveablesList.addModels(SaveablesLis t.java:289)
at org.eclipse.ui.internal.SaveablesList.postOpen(SaveablesList .java:684)
at org.eclipse.ui.internal.PartList.partOpened(PartList.java:23 4)
at org.eclipse.ui.internal.PartList.access$0(PartList.java:210)
at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList. java:40)
at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalP ropertyChange(WorkbenchPartReference.java:375)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:610)
at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed itorAreaHelper.java:271)
at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito rManager.java:1429)
at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi torManager.java:942)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work benchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe nch.java:1567)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:196)
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(EclipseS tarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

!ENTRY org.eclipse.ui 4 4 2011-04-13 17:42:31.793
!MESSAGE Invalid preference page path: Common



I do not know why eclipse is searching for com.foo.dsl.Common, since my project is named com.foo.bttg I would expect eclipse to search for com.foo.bttg.Common instead.

I've searched the workspace for the string "com.foo.dsl", but I did not found this string anywhere in the workspace.

In case it helps I append the Workflow that generates the editor and other artifacts:

module com.foo.bttg.BuildAll

import org.eclipse.emf.mwe.utils.*
import org.eclipse.xtext.generator.*
import org.eclipse.xtext.ui.generator.*

var baseDir = "/com/foo/bttg/meta_model"
var projectName = "com.foo.bttg"
var runtimeProject = "../${projectName}"
var basisClasspath = "classpath:${baseDir}"

Workflow {
    bean = StandaloneSetup {
        platformUri = "${runtimeProject}/.."
    }

    component = DirectoryCleaner {
        directory = "${runtimeProject}/src-gen"
    }

    component = DirectoryCleaner {
        directory = "${runtimeProject}.ui/src-gen"
    }

    component = Generator {

        pathRtProject = runtimeProject
        projectNameRt = projectName
        language = {
            fileExtensions = "mtd"
            uri = "${basisClasspath}/mtd/MTD.xtext"
            fragment = grammarAccess.GrammarAccessFragment {}

            // Generate java classes for Ecore models
            fragment = ecore.EcoreGeneratorFragment auto-inject {}

            // the serialization component
            fragment = parseTreeConstructor.ParseTreeConstructorFragment {}

            // a custom ResourceFactory for use with EMF 
            fragment = resourceFactory.ResourceFactoryFragment auto-inject {}

            // The antlr parser generator fragment.
            fragment = parser.antlr.XtextAntlrGeneratorFragment {}

            // validation API 
            fragment = validation.CheckFragment {}
        }

        language = {
            fileExtensions = "dsl"
            uri = "${basisClasspath}/dsl/DSL.xtext"
            fragment = grammarAccess.GrammarAccessFragment {}

            // Generate java classes for Ecore models
            fragment = ecore.EcoreGeneratorFragment auto-inject {}

            // the serialization component
            fragment = parseTreeConstructor.ParseTreeConstructorFragment {}

            // a custom ResourceFactory for use with EMF 
            fragment = resourceFactory.ResourceFactoryFragment auto-inject {}

            // The antlr parser generator fragment.
            fragment = parser.antlr.XtextAntlrGeneratorFragment {
                options = auto-inject {
                    backtrack = true
                }
            }

            // scoping API
            fragment = scoping.ImportNamespacesScopingFragment {}
            fragment = exporting.QualifiedNamesFragment {}
        }
    }

    component = Generator {
        pathRtProject = runtimeProject
        pathUiProject = "${runtimeProject}.ui"
        projectNameRt = projectName
        projectNameUi = "${projectName}.ui"
        language = {
            fileExtensions = "btc, btpt, btt"
            uri = "${basisClasspath}/btc/BTC.xtext"
            fragment = grammarAccess.GrammarAccessFragment {}

            // Generate java classes for Ecore models
            fragment = ecore.EcoreGeneratorFragment auto-inject {
                generateEdit = true
            }

            // the serialization component
            fragment = parseTreeConstructor.ParseTreeConstructorFragment {}

            // a custom ResourceFactory for use with EMF 
            fragment = resourceFactory.ResourceFactoryFragment auto-inject {}

            // The antlr parser generator fragment.
            fragment = parser.antlr.XtextAntlrGeneratorFragment {
                options = auto-inject {
                    backtrack = true
                }
            }

            // validation API 
            fragment = validation.CheckFragment {}

            fragment = validation.JavaValidatorFragment {
                composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
                composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
            }

            // scoping API
            fragment = scoping.ImportNamespacesScopingFragment {}
            fragment = exporting.QualifiedNamesFragment {}
            fragment = builder.BuilderIntegrationFragment {}

            // formatter API 
            //fragment = formatting.FormatterFragment {}

            // labeling API 
            fragment = labeling.LabelProviderFragment {}

            // outline API
            fragment = outline.TransformerFragment {}
            fragment = outline.OutlineNodeAdapterFactoryFragment {}
            //fragment = outline.QuickOutlineFragment {}

            // java-based API for content assistance 
            fragment = contentAssist.JavaBasedContentAssistFragment {}
            //fragment = parser.antlr.XtextAntlrUiGeneratorFragment {
            //    options = { backtrack = true }
            //}
            fragment = builder.BuilderIntegrationFragment {}

            // quickfix API 
            //fragment = quickfix.QuickfixProviderFragment {}
        }
    }

}


Could someone point me in the right direction?

Regards.
Re: ClassNotFound while testing the xtext generated editor [message #665211 is a reply to message #665201] Wed, 13 April 2011 17:22 Go to previous messageGo to next message
Sebastian Zarnekow is currently offline Sebastian ZarnekowFriend
Messages: 3118
Registered: July 2009
Senior Member
Hi Ruben,

please make sure that the plugin.xml and the plugin.xml_gen files of the
runtime and ui projects are in sync. They are not automatically merged.
Be careful to not override manual additions in the plugin.xml files.

Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 13.04.11 17:56, schrieb Ruben:
> Hi,
>
> when I run (right click on the project com.foo.bttg.edit and choose run
> as "Eclipse Application") the project of the Xtext generated editor I
> get the following error after clicking on a source of the type .btc
> (sources with the extension btt and btpt are not registered, also I do
> not know how to fix this either):
>
> Quote:
>> !SESSION 2011-04-13 17:40:49.656
>> -----------------------------------------------
>> eclipse.buildId=M20100909-0800
>> java.version=1.6.0_21
>> java.vendor=Sun Microsystems Inc.
>> BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_CH
>> Framework arguments: -product org.eclipse.sdk.ide
>> Command-line arguments: -product org.eclipse.sdk.ide -data
>> C:\eclipse_workspaces\helios/../runtime-EclipseApplication -dev
>> file:C:/eclipse_workspaces/helios/.metadata/.plugins/org.ecl
>> ipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32
>> -arch x86 -consoleLog
>>
>> !ENTRY org.eclipse.ui 4 0 2011-04-13 17:40:59.265
>> !MESSAGE Unable to create editor ID com.foo.dsl.Common: No editor
>> descriptor for id com.foo.dsl.Common
>> !STACK 1
>> org.eclipse.ui.PartInitException: No editor descriptor for id
>> com.foo.dsl.Common
>> at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi
>> torReference.java:601)
>> at org.eclipse.ui.internal.EditorReference.createPart(EditorRef
>> erence.java:465)
>> at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb
>> enchPartReference.java:595)
>> at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed
>> itorAreaHelper.java:271)
>> at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito
>> rManager.java:1429)
>> at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi
>> torManager.java:942)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work
>> benchAdvisor.java:803)
>> at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe
>> nch.java:1567)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
>> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
>> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
>> at org.eclipse.core.databinding.observable.Realm.runWithDefault
>> (Realm.java:332)
>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work
>> bench.java:664)
>> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
>> at org.eclipse.ui.internal.ide.application.IDEApplication.start
>> (IDEApplication.java:115)
>> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips
>> eAppHandle.java:196)
>> 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(EclipseS
>> tarter.java:369)
>> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS
>> tarter.java:179)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> at java.lang.reflect.Method.invoke(Unknown Source)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>> !SUBENTRY 1 org.eclipse.ui 4 0 2011-04-13 17:40:59.281
>> !MESSAGE No editor descriptor for id com.foo.dsl.Common
>>
>> !ENTRY org.eclipse.ui 2 2 2011-04-13 17:40:59.328
>> !MESSAGE Ignored attempt to add saveable that was already registered
>> !STACK 0
>> org.eclipse.core.runtime.AssertionFailedException: unknown saveable:
>> org.eclipse.ui.internal.DefaultSaveable@1d3694a from part:
>> org.eclipse.ui.internal.ErrorEditorPart@1d3694a
>> at org.eclipse.ui.internal.SaveablesList.logWarning(SaveablesLi
>> st.java:187)
>> at org.eclipse.ui.internal.SaveablesList.addModel(SaveablesList
>> .java:117)
>> at org.eclipse.ui.internal.SaveablesList.addModels(SaveablesLis
>> t.java:289)
>> at org.eclipse.ui.internal.SaveablesList.postOpen(SaveablesList
>> .java:684)
>> at org.eclipse.ui.internal.PartList.partOpened(PartList.java:23 4)
>> at org.eclipse.ui.internal.PartList.access$0(PartList.java:210)
>> at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList. java:40)
>> at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalP
>> ropertyChange(WorkbenchPartReference.java:375)
>> at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb
>> enchPartReference.java:610)
>> at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed
>> itorAreaHelper.java:271)
>> at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito
>> rManager.java:1429)
>> at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi
>> torManager.java:942)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work
>> benchAdvisor.java:803)
>> at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe
>> nch.java:1567)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
>> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
>> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
>> at org.eclipse.core.databinding.observable.Realm.runWithDefault
>> (Realm.java:332)
>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work
>> bench.java:664)
>> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
>> at org.eclipse.ui.internal.ide.application.IDEApplication.start
>> (IDEApplication.java:115)
>> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips
>> eAppHandle.java:196)
>> 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(EclipseS
>> tarter.java:369)
>> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS
>> tarter.java:179)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> at java.lang.reflect.Method.invoke(Unknown Source)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>>
>> !ENTRY org.eclipse.ui 4 4 2011-04-13 17:42:31.793
>> !MESSAGE Invalid preference page path: Common
>
>
> I do not know why eclipse is searching for com.foo.dsl.Common, since my
> project is named com.foo.bttg I would expect eclipse to search for
> com.foo.bttg.Common instead.
>
> I've searched the workspace for the string "com.foo.dsl", but I did not
> found this string anywhere in the workspace.
>
> In case it helps I append the Workflow that generates the editor and
> other artifacts:
>
> module com.foo.bttg.BuildAll
>
> import org.eclipse.emf.mwe.utils.*
> import org.eclipse.xtext.generator.*
> import org.eclipse.xtext.ui.generator.*
>
> var baseDir = "/com/foo/bttg/meta_model"
> var projectName = "com.foo.bttg"
> var runtimeProject = "../${projectName}"
> var basisClasspath = "classpath:${baseDir}"
>
> Workflow {
> bean = StandaloneSetup {
> platformUri = "${runtimeProject}/.."
> }
>
> component = DirectoryCleaner {
> directory = "${runtimeProject}/src-gen"
> }
>
> component = DirectoryCleaner {
> directory = "${runtimeProject}.ui/src-gen"
> }
>
> component = Generator {
>
> pathRtProject = runtimeProject
> projectNameRt = projectName
> language = {
> fileExtensions = "mtd"
> uri = "${basisClasspath}/mtd/MTD.xtext"
> fragment = grammarAccess.GrammarAccessFragment {}
>
> // Generate java classes for Ecore models
> fragment = ecore.EcoreGeneratorFragment auto-inject {}
>
> // the serialization component
> fragment = parseTreeConstructor.ParseTreeConstructorFragment {}
>
> // a custom ResourceFactory for use with EMF fragment =
> resourceFactory.ResourceFactoryFragment auto-inject {}
>
> // The antlr parser generator fragment.
> fragment = parser.antlr.XtextAntlrGeneratorFragment {}
>
> // validation API fragment = validation.CheckFragment {}
> }
>
> language = {
> fileExtensions = "dsl"
> uri = "${basisClasspath}/dsl/DSL.xtext"
> fragment = grammarAccess.GrammarAccessFragment {}
>
> // Generate java classes for Ecore models
> fragment = ecore.EcoreGeneratorFragment auto-inject {}
>
> // the serialization component
> fragment = parseTreeConstructor.ParseTreeConstructorFragment {}
>
> // a custom ResourceFactory for use with EMF fragment =
> resourceFactory.ResourceFactoryFragment auto-inject {}
>
> // The antlr parser generator fragment.
> fragment = parser.antlr.XtextAntlrGeneratorFragment {
> options = auto-inject {
> backtrack = true
> }
> }
>
> // scoping API
> fragment = scoping.ImportNamespacesScopingFragment {}
> fragment = exporting.QualifiedNamesFragment {}
> }
> }
>
> component = Generator {
> pathRtProject = runtimeProject
> pathUiProject = "${runtimeProject}.ui"
> projectNameRt = projectName
> projectNameUi = "${projectName}.ui"
> language = {
> fileExtensions = "btc, btpt, btt"
> uri = "${basisClasspath}/btc/BTC.xtext"
> fragment = grammarAccess.GrammarAccessFragment {}
>
> // Generate java classes for Ecore models
> fragment = ecore.EcoreGeneratorFragment auto-inject {
> generateEdit = true
> }
>
> // the serialization component
> fragment = parseTreeConstructor.ParseTreeConstructorFragment {}
>
> // a custom ResourceFactory for use with EMF fragment =
> resourceFactory.ResourceFactoryFragment auto-inject {}
>
> // The antlr parser generator fragment.
> fragment = parser.antlr.XtextAntlrGeneratorFragment {
> options = auto-inject {
> backtrack = true
> }
> }
>
> // validation API fragment = validation.CheckFragment {}
>
> fragment = validation.JavaValidatorFragment {
> composedCheck = "org.eclipse.xtext.validation.ImportUriValidator"
> composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
> }
>
> // scoping API
> fragment = scoping.ImportNamespacesScopingFragment {}
> fragment = exporting.QualifiedNamesFragment {}
> fragment = builder.BuilderIntegrationFragment {}
>
> // formatter API //fragment = formatting.FormatterFragment {}
>
> // labeling API fragment = labeling.LabelProviderFragment {}
>
> // outline API
> fragment = outline.TransformerFragment {}
> fragment = outline.OutlineNodeAdapterFactoryFragment {}
> //fragment = outline.QuickOutlineFragment {}
>
> // java-based API for content assistance fragment =
> contentAssist.JavaBasedContentAssistFragment {}
> //fragment = parser.antlr.XtextAntlrUiGeneratorFragment {
> // options = { backtrack = true }
> //}
> fragment = builder.BuilderIntegrationFragment {}
>
> // quickfix API //fragment = quickfix.QuickfixProviderFragment {}
> }
> }
>
> }
>
>
> Could someone point me in the right direction?
>
> Regards.
Re: ClassNotFound while testing the xtext generated editor [message #665293 is a reply to message #665211] Thu, 14 April 2011 07:57 Go to previous messageGo to next message
Rubén Porras Campo is currently offline Rubén Porras CampoFriend
Messages: 67
Registered: July 2009
Member
Hi Sebastian,

that solved the problem. I have now a different problem (please let me know if you prefer a new post for the new problem). Apparently not all extensions were properly registered (.btc works fine, but .btt does not):

Quote:
0 [main] ERROR org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback - different instances of editor were given.
java.lang.IllegalStateException: different instances of editor were given.
at org.eclipse.xtext.ui.editor.AbstractDirtyStateAwareEditorCal lback.beforeDispose(AbstractDirtyStateAwareEditorCallback.ja va:37)
at org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback.befo reDispose(CompoundXtextEditorCallback.java:70)
at org.eclipse.xtext.ui.editor.XtextEditor.dispose(XtextEditor. java:382)
at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi torReference.java:705)
at org.eclipse.ui.internal.EditorReference.createPart(EditorRef erence.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:595)
at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed itorAreaHelper.java:271)
at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito rManager.java:1429)
at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi torManager.java:942)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work benchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe nch.java:1567)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:196)
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(EclipseS tarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
!SESSION 2011-04-14 09:45:03.337 -----------------------------------------------
eclipse.buildId=M20100909-0800
java.version=1.6.0_21
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_CH
Framework arguments: -product org.eclipse.sdk.ide
Command-line arguments: -product org.eclipse.sdk.ide -data C:\eclipse_workspaces\helios/../runtime-EclipseApplication -dev file:C:/eclipse_workspaces/helios/.metadata/.plugins/org.ecl ipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32 -arch x86 -consoleLog

!ENTRY org.apache.log4j 4 0 2011-04-14 09:45:09.665
!MESSAGE org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback - different instances of editor were given.


!ENTRY org.eclipse.ui 4 0 2011-04-14 09:45:09.680
!MESSAGE Unable to create editor ID com.foo.bttg.meta_model.btc.BTC: Editor could not be initialized.
!STACK 0
java.lang.IllegalStateException: The resource factory registered for platform:/resource/test/test.btt does not yield an XtextResource. Make sure the file name extension is correct (case matters).
at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac tory.createResource(ResourceForIEditorInputFactory.java:77)
at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac tory.createResourceFor(ResourceForIEditorInputFactory.java:6 9)
at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac tory.createResource(ResourceForIEditorInputFactory.java:61)
at org.eclipse.xtext.ui.editor.model.JavaClassPathResourceForIE ditorInputFactory.createResource(JavaClassPathResourceForIEd itorInputFactory.java:37)
at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac tory.createResource(ResourceForIEditorInputFactory.java:49)
at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.setD ocumentContent(XtextDocumentProvider.java:102)
at org.eclipse.ui.editors.text.StorageDocumentProvider.createDo cument(StorageDocumentProvider.java:229)
at org.eclipse.ui.editors.text.FileDocumentProvider.createEleme ntInfo(FileDocumentProvider.java:735)
at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.crea teElementInfo(XtextDocumentProvider.java:131)
at org.eclipse.ui.texteditor.AbstractDocumentProvider.connect(A bstractDocumentProvider.java:400)
at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(Abst ractTextEditor.java:4056)
at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(Status TextEditor.java:217)
at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetI nput(AbstractDecoratedTextEditor.java:1444)
at org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor .java:169)
at org.eclipse.xtext.ui.editor.XtextEditor.doSetInput(XtextEdit or.java:149)
at org.eclipse.ui.texteditor.AbstractTextEditor$19.run(Abstract TextEditor.java:3043)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread( ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.ja va:372)
at org.eclipse.jface.window.ApplicationWindow$1.run(Application Window.java:759)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:70)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWi ndow.java:756)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow. java:2600)
at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(Ab stractTextEditor.java:3061)
at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTe xtEditor.java:3088)
at org.eclipse.xtext.ui.editor.XtextEditor.init(XtextEditor.jav a:169)
at org.eclipse.ui.internal.EditorManager.createSite(EditorManag er.java:798)
at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi torReference.java:647)
at org.eclipse.ui.internal.EditorReference.createPart(EditorRef erence.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:595)
at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed itorAreaHelper.java:271)
at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito rManager.java:1429)
at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi torManager.java:942)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work benchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe nch.java:1567)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:196)
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(EclipseS tarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

!ENTRY org.eclipse.ui 2 2 2011-04-14 09:45:09.680
!MESSAGE Ignored attempt to add saveable that was already registered
!STACK 0
org.eclipse.core.runtime.AssertionFailedException: unknown saveable: org.eclipse.ui.internal.DefaultSaveable@10608e6 from part: org.eclipse.ui.internal.ErrorEditorPart@10608e6
at org.eclipse.ui.internal.SaveablesList.logWarning(SaveablesLi st.java:187)
at org.eclipse.ui.internal.SaveablesList.addModel(SaveablesList .java:117)
at org.eclipse.ui.internal.SaveablesList.addModels(SaveablesLis t.java:289)
at org.eclipse.ui.internal.SaveablesList.postOpen(SaveablesList .java:684)
at org.eclipse.ui.internal.PartList.partOpened(PartList.java:23 4)
at org.eclipse.ui.internal.PartList.access$0(PartList.java:210)
at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList. java:40)
at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalP ropertyChange(WorkbenchPartReference.java:375)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:610)
at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed itorAreaHelper.java:271)
at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito rManager.java:1429)
at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi torManager.java:942)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work benchAdvisor.java:803)
at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe nch.java:1567)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run (StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:196)
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(EclipseS tarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)



I looked in the AbstractBTCRuntimeModule.java of the com.foo.bttg module, and the code seems right:

	public void configureFileExtensions(Binder binder) {
		if (properties == null || properties.getProperty(Constants.FILE_EXTENSIONS) == null)
			binder.bind(String.class).annotatedWith(Names.named(Constants.FILE_EXTENSIONS)).toInstance("btc,btpt,btt");
	}


Any ideas?
Re: ClassNotFound while testing the xtext generated editor [message #665296 is a reply to message #665293] Thu, 14 April 2011 08:16 Go to previous messageGo to next message
Sebastian Zarnekow is currently offline Sebastian ZarnekowFriend
Messages: 3118
Registered: July 2009
Senior Member
Hi Ruben,

the exception indicates that one of the plugin.xml files of your
projects is not in sync. Do you have more than one language in your
project? Do you use multiple workflows to generate the files or only one
workflow?

Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 14.04.11 09:57, schrieb Ruben:
> Hi Sebastian,
>
> that solved the problem. I have now a different problem (please let me
> know if you prefer a new post for the new problem). Apparently not all
> extensions were properly registered (.btc works fine, but .btt does not):
>
> Quote:
>> 0 [main] ERROR org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback
>> - different instances of editor were given.
>> java.lang.IllegalStateException: different instances of editor were
>> given.
>> at org.eclipse.xtext.ui.editor.AbstractDirtyStateAwareEditorCal
>> lback.beforeDispose(AbstractDirtyStateAwareEditorCallback.ja va:37)
>> at org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback.befo
>> reDispose(CompoundXtextEditorCallback.java:70)
>> at org.eclipse.xtext.ui.editor.XtextEditor.dispose(XtextEditor. java:382)
>> at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi
>> torReference.java:705)
>> at org.eclipse.ui.internal.EditorReference.createPart(EditorRef
>> erence.java:465)
>> at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb
>> enchPartReference.java:595)
>> at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed
>> itorAreaHelper.java:271)
>> at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito
>> rManager.java:1429)
>> at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi
>> torManager.java:942)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work
>> benchAdvisor.java:803)
>> at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe
>> nch.java:1567)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
>> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
>> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
>> at org.eclipse.core.databinding.observable.Realm.runWithDefault
>> (Realm.java:332)
>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work
>> bench.java:664)
>> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
>> at org.eclipse.ui.internal.ide.application.IDEApplication.start
>> (IDEApplication.java:115)
>> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips
>> eAppHandle.java:196)
>> 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(EclipseS
>> tarter.java:369)
>> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS
>> tarter.java:179)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> at java.lang.reflect.Method.invoke(Unknown Source)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>> !SESSION 2011-04-14 09:45:03.337
>> -----------------------------------------------
>> eclipse.buildId=M20100909-0800
>> java.version=1.6.0_21
>> java.vendor=Sun Microsystems Inc.
>> BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_CH
>> Framework arguments: -product org.eclipse.sdk.ide
>> Command-line arguments: -product org.eclipse.sdk.ide -data
>> C:\eclipse_workspaces\helios/../runtime-EclipseApplication -dev
>> file:C:/eclipse_workspaces/helios/.metadata/.plugins/org.ecl
>> ipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32
>> -arch x86 -consoleLog
>>
>> !ENTRY org.apache.log4j 4 0 2011-04-14 09:45:09.665
>> !MESSAGE org.eclipse.xtext.ui.editor.CompoundXtextEditorCallback -
>> different instances of editor were given.
>>
>>
>> !ENTRY org.eclipse.ui 4 0 2011-04-14 09:45:09.680
>> !MESSAGE Unable to create editor ID com.foo.bttg.meta_model.btc.BTC:
>> Editor could not be initialized.
>> !STACK 0
>> java.lang.IllegalStateException: The resource factory registered for
>> platform:/resource/test/test.btt does not yield an XtextResource. Make
>> sure the file name extension is correct (case matters).
>> at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac
>> tory.createResource(ResourceForIEditorInputFactory.java:77)
>> at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac
>> tory.createResourceFor(ResourceForIEditorInputFactory.java:6 9)
>> at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac
>> tory.createResource(ResourceForIEditorInputFactory.java:61)
>> at org.eclipse.xtext.ui.editor.model.JavaClassPathResourceForIE
>> ditorInputFactory.createResource(JavaClassPathResourceForIEd
>> itorInputFactory.java:37)
>> at org.eclipse.xtext.ui.editor.model.ResourceForIEditorInputFac
>> tory.createResource(ResourceForIEditorInputFactory.java:49)
>> at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.setD
>> ocumentContent(XtextDocumentProvider.java:102)
>> at org.eclipse.ui.editors.text.StorageDocumentProvider.createDo
>> cument(StorageDocumentProvider.java:229)
>> at org.eclipse.ui.editors.text.FileDocumentProvider.createEleme
>> ntInfo(FileDocumentProvider.java:735)
>> at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.crea
>> teElementInfo(XtextDocumentProvider.java:131)
>> at org.eclipse.ui.texteditor.AbstractDocumentProvider.connect(A
>> bstractDocumentProvider.java:400)
>> at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(Abst
>> ractTextEditor.java:4056)
>> at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(Status
>> TextEditor.java:217)
>> at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetI
>> nput(AbstractDecoratedTextEditor.java:1444)
>> at org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor
>> .java:169)
>> at org.eclipse.xtext.ui.editor.XtextEditor.doSetInput(XtextEdit
>> or.java:149)
>> at org.eclipse.ui.texteditor.AbstractTextEditor$19.run(Abstract
>> TextEditor.java:3043)
>> at org.eclipse.jface.operation.ModalContext.runInCurrentThread(
>> ModalContext.java:464)
>> at org.eclipse.jface.operation.ModalContext.run(ModalContext.ja va:372)
>> at org.eclipse.jface.window.ApplicationWindow$1.run(Application
>> Window.java:759)
>> at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:70)
>> at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWi
>> ndow.java:756)
>> at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.
>> java:2600)
>> at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(Ab
>> stractTextEditor.java:3061)
>> at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTe
>> xtEditor.java:3088)
>> at org.eclipse.xtext.ui.editor.XtextEditor.init(XtextEditor.jav a:169)
>> at org.eclipse.ui.internal.EditorManager.createSite(EditorManag
>> er.java:798)
>> at org.eclipse.ui.internal.EditorReference.createPartHelper(Edi
>> torReference.java:647)
>> at org.eclipse.ui.internal.EditorReference.createPart(EditorRef
>> erence.java:465)
>> at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb
>> enchPartReference.java:595)
>> at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed
>> itorAreaHelper.java:271)
>> at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito
>> rManager.java:1429)
>> at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi
>> torManager.java:942)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work
>> benchAdvisor.java:803)
>> at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe
>> nch.java:1567)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
>> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
>> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
>> at org.eclipse.core.databinding.observable.Realm.runWithDefault
>> (Realm.java:332)
>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work
>> bench.java:664)
>> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
>> at org.eclipse.ui.internal.ide.application.IDEApplication.start
>> (IDEApplication.java:115)
>> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips
>> eAppHandle.java:196)
>> 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(EclipseS
>> tarter.java:369)
>> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS
>> tarter.java:179)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> at java.lang.reflect.Method.invoke(Unknown Source)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>>
>> !ENTRY org.eclipse.ui 2 2 2011-04-14 09:45:09.680
>> !MESSAGE Ignored attempt to add saveable that was already registered
>> !STACK 0
>> org.eclipse.core.runtime.AssertionFailedException: unknown saveable:
>> org.eclipse.ui.internal.DefaultSaveable@10608e6 from part:
>> org.eclipse.ui.internal.ErrorEditorPart@10608e6
>> at org.eclipse.ui.internal.SaveablesList.logWarning(SaveablesLi
>> st.java:187)
>> at org.eclipse.ui.internal.SaveablesList.addModel(SaveablesList
>> .java:117)
>> at org.eclipse.ui.internal.SaveablesList.addModels(SaveablesLis
>> t.java:289)
>> at org.eclipse.ui.internal.SaveablesList.postOpen(SaveablesList
>> .java:684)
>> at org.eclipse.ui.internal.PartList.partOpened(PartList.java:23 4)
>> at org.eclipse.ui.internal.PartList.access$0(PartList.java:210)
>> at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList. java:40)
>> at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalP
>> ropertyChange(WorkbenchPartReference.java:375)
>> at org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb
>> enchPartReference.java:610)
>> at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(Ed
>> itorAreaHelper.java:271)
>> at org.eclipse.ui.internal.EditorManager.setVisibleEditor(Edito
>> rManager.java:1429)
>> at org.eclipse.ui.internal.EditorManager$5.runWithException(Edi
>> torManager.java:942)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(Work
>> benchAdvisor.java:803)
>> at org.eclipse.ui.internal.Workbench$31.runWithException(Workbe
>> nch.java:1567)
>> at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run
>> (StartupThreading.java:31)
>> at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
>> at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr
>> onizer.java:134)
>> at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:4041)
>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3660)
>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
>> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:24 38)
>> at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
>> at org.eclipse.core.databinding.observable.Realm.runWithDefault
>> (Realm.java:332)
>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work
>> bench.java:664)
>> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
>> at org.eclipse.ui.internal.ide.application.IDEApplication.start
>> (IDEApplication.java:115)
>> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips
>> eAppHandle.java:196)
>> 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(EclipseS
>> tarter.java:369)
>> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS
>> tarter.java:179)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> at java.lang.reflect.Method.invoke(Unknown Source)
>> 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)
>> at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
>
>
> I looked in the AbstractBTCRuntimeModule.java of the com.foo.bttg
> module, and the code seems right:
>
>
> public void configureFileExtensions(Binder binder) {
> if (properties == null ||
> properties.getProperty(Constants.FILE_EXTENSIONS) == null)
> binder.bind(String.class).annotatedWith(Names.named(Constant s.FILE_EXTENSIONS)).toInstance( "btc,btpt,btt");
>
> }
>
>
> Any ideas?
Re: ClassNotFound while testing the xtext generated editor [message #665302 is a reply to message #665296] Thu, 14 April 2011 08:41 Go to previous message
Rubén Porras Campo is currently offline Rubén Porras CampoFriend
Messages: 67
Registered: July 2009
Member
Hi Sebastian,

I have only one workflow file (module com.foo.bttg.BuildAll). I posted this file in the first post of this thread. The plugin.xml sources of the three projects (generator, edit, ui) are in sync. I post all of them here in case it helps you:

For the generator:

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<plugin>

  <extension point="org.eclipse.emf.ecore.generated_package">
    <package 
       uri = "http://www.foo.com/bttg/meta_model/btc" 
       class = "com.foo.bttg.meta_model.btc.btc.BtcPackage"
       genModel = "com/foo/bttg/meta_model/btc/BTC.genmodel" /> 
	
  </extension>




</plugin>


For the edit project (there is no xml_gen in this case):

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<!--
 <copyright>
 </copyright>

 $Id$
-->

<plugin>

   <extension point="org.eclipse.emf.edit.itemProviderAdapterFactories">
      <factory
            uri="http://www.foo.com/bttg/meta_model/btc"
            class="com.foo.bttg.meta_model.btc.btc.provider.BtcItemProviderAdapterFactory"
            supportedTypes=
              "org.eclipse.emf.edit.provider.IEditingDomainItemProvider
               org.eclipse.emf.edit.provider.IStructuredItemContentProvider
               org.eclipse.emf.edit.provider.ITreeItemContentProvider
               org.eclipse.emf.edit.provider.IItemLabelProvider
               org.eclipse.emf.edit.provider.IItemPropertySource"/>
   </extension>

</plugin>


And for the ui project:

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<plugin>

    <extension
            point="org.eclipse.ui.editors">
        <editor
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.XtextEditor"
            contributorClass="org.eclipse.ui.editors.text.TextEditorActionContributor"
            default="true"
            extensions="btc,btpt,btt"
            id="com.avaloq.bttg.meta_model.btc.BTC"
            name="BTC Editor">
        </editor>
    </extension>
    <extension
        point="org.eclipse.ui.handlers">
        <handler
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.hyperlinking.OpenDeclarationHandler"
            commandId="org.eclipse.xtext.ui.editor.hyperlinking.OpenDeclaration">
            <activeWhen>
                <reference
                    definitionId="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
                </reference>
            </activeWhen>
        </handler>
        <handler
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.handler.ValidateActionHandler"
            commandId="com.avaloq.bttg.meta_model.btc.BTC.validate">
         <activeWhen>
            <reference
                    definitionId="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
            </reference>
         </activeWhen>
      </handler>
    </extension>
    <extension point="org.eclipse.core.expressions.definitions">
        <definition id="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
            <and>
                <reference definitionId="isActiveEditorAnInstanceOfXtextEditor"/>
                <with variable="activeEditor">
                    <test property="org.eclipse.xtext.ui.editor.XtextEditor.languageName" 
                        value="com.avaloq.bttg.meta_model.btc.BTC" 
                        forcePluginActivation="true"/>
                </with>        
            </and>
        </definition>
    </extension>
    <extension
            point="org.eclipse.ui.preferencePages">
        <page
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.preferences.LanguageRootPreferencePage"
            id="com.avaloq.bttg.meta_model.btc.BTC"
            name="BTC">
            <keywordReference id="com.avaloq.bttg.meta_model.btc.ui.keyword_BTC"/>
        </page>
        <page
            category="com.avaloq.bttg.meta_model.btc.BTC"
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.syntaxcoloring.SyntaxColoringPreferencePage"
            id="com.avaloq.bttg.meta_model.btc.BTC.coloring"
            name="Syntax Coloring">
            <keywordReference id="com.avaloq.bttg.meta_model.btc.ui.keyword_BTC"/>
        </page>
        <page
            category="com.avaloq.bttg.meta_model.btc.BTC"
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.templates.XtextTemplatePreferencePage"
            id="com.avaloq.bttg.meta_model.btc.BTC.templates"
            name="Templates">
            <keywordReference id="com.avaloq.bttg.meta_model.btc.ui.keyword_BTC"/>
        </page>
    </extension>
    <extension
        point="org.eclipse.ui.keywords">
        <keyword
            id="com.avaloq.bttg.meta_model.btc.ui.keyword_BTC"
            label="BTC"/>
    </extension>
    <extension
         point="org.eclipse.ui.commands">
      <command
            description="Trigger expensive validation"
            id="com.avaloq.bttg.meta_model.btc.BTC.validate"
            name="Validate">
      </command>
    </extension>
    <extension point="org.eclipse.ui.menus">
        <menuContribution
            locationURI="popup:#TextEditorContext?after=group.edit">
             <command
                 commandId="com.avaloq.bttg.meta_model.btc.BTC.validate"
                 style="push"
                 tooltip="Trigger expensive validation">
            <visibleWhen checkEnabled="false">
                <reference
                    definitionId="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
                </reference>
            </visibleWhen>
         </command>  
         </menuContribution>
    </extension>
    <extension point="org.eclipse.ui.menus">
        <menuContribution locationURI="popup:#TextEditorContext?endof=group.find">
            <command commandId="org.eclipse.xtext.ui.editor.FindReferences">
                <visibleWhen checkEnabled="false">
                    <reference definitionId="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
                    </reference>
                </visibleWhen>
            </command>
        </menuContribution>
    </extension>
    <extension point="org.eclipse.ui.handlers">
        <handler
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.editor.findrefs.FindReferencesHandler"
            commandId="org.eclipse.xtext.ui.editor.FindReferences">
            <activeWhen>
                <reference
                    definitionId="com.avaloq.bttg.meta_model.btc.BTC.Editor.opened">
                </reference>
            </activeWhen>
        </handler>
    </extension>   

<!-- adding resource factories -->

    <extension
        point="org.eclipse.emf.ecore.extension_parser">
        <parser
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.resource.IResourceFactory"
            type="btc">
        </parser>
    </extension>
    <extension point="org.eclipse.xtext.extension_resourceServiceProvider">
        <resourceServiceProvider
            class="com.avaloq.bttg.meta_model.btc.ui.BTCExecutableExtensionFactory:org.eclipse.xtext.ui.resource.IResourceUIServiceProvider"
            uriExtension="btc">
        </resourceServiceProvider>
    </extension>




</plugin>


Thanks a lot.
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