Can't activate tool window right now

The first parameter of the activate() method is a Runnable. If you need to perform some activity after the toolwindow is activated, you need to perform it from that runnable.

Your current code simply blocks the event dispatch thread and does not allow the Swing events involved in the toolwindow activation to be processed.

I change my code and it raise new error "ellij.ide.impl.DataManagerImpl - cannot share data context between Swing events; initial event count = 7115; current event count = 7165

public void actionPerformed(AnActionEvent e) {
    ToolWindow dbg = ToolWindowManager.getInstance(e.getProject()).getToolWindow("Debug");
    dbg.show(null);
    dbg.activate(new Runnable() {
        public void selectContent(String name) {
            for (Content c : cm.getContents()) {
                if (c.getTabName().equals(name)) {
                    cm.setSelectedContent(c);
                    return;
                }
            }
        }

        public String curTabName() {
            return cm.getSelectedContent().getTabName();
        }

        ContentManager cm;

        @Override
        public void run() {
            this.cm = PlatformDataKeys.NONEMPTY_CONTENT_MANAGER.getData(e.getDataContext());
            if (cm != null) {
                if (curTabName() == "Console") {
                    selectContent("Watches");
                } else {
                    selectContent("Console");
                }
            }
        }
    });
}

following is my err output:

[ 107331]  ERROR - ellij.ide.impl.DataManagerImpl - cannot share data context between Swing events; initial event count = 7115; current event count = 7165
java.lang.Throwable
 at com.intellij.openapi.diagnostic.Logger.error(Logger.java:115)
 at com.intellij.ide.impl.DataManagerImpl$MyDataContext.getData(DataManagerImpl.java:329)
 at com.intellij.openapi.actionSystem.DataKey.getData(DataKey.java:75)
 at ro.idea.TryAct2$1.run(TryAct2.java:50)
 at com.intellij.openapi.wm.impl.ToolWindowImpl$3$1.run(ToolWindowImpl.java:150)
 at com.intellij.openapi.wm.impl.commands.InvokeLaterCmd.run(InvokeLaterCmd.java:33)
 at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:318)
 at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
 at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744)
 at java.awt.EventQueue.access$400(EventQueue.java:97)
 at java.awt.EventQueue$3.run(EventQueue.java:697)
 at java.awt.EventQueue$3.run(EventQueue.java:691)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:714)
 at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:748)
 at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:577)
 at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:384)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
[ 107332]  ERROR - ellij.ide.impl.DataManagerImpl - IntelliJ IDEA 14.0.1  Build #IU-139.225.3
[ 107333]  ERROR - ellij.ide.impl.DataManagerImpl - JDK: 1.8.0_05
[ 107333]  ERROR - ellij.ide.impl.DataManagerImpl - VM: Java HotSpot(TM) 64-Bit Server VM
[ 107333]  ERROR - ellij.ide.impl.DataManagerImpl - Vendor: Oracle Corporation
[ 107334]  ERROR - ellij.ide.impl.DataManagerImpl - OS: Linux
[ 107334]  ERROR - ellij.ide.impl.DataManagerImpl - Last Action: TryAct2
[ 112349]   WARN - ateSettings.impl.UpdateChecker - Connection failed. Please check your network connection and try again.
[ 234515]   WARN - ewvfs.persistent.RefreshWorker - [+] fs=LocalFileSystem dir=file:///home/roroco name=ruby -e Time.now\n}

Use DataManager.getDataContextFromFocus() instead of e.getDataContext() in your runnable.

see my screencast, it's not meaningful, when i first invoke this action this "cm"  in "this.cm = PlatformDataKeys.NONEMPTY_CONTENT_MANAGER.getData(dc);" is always null, following is my code:

public void actionPerformed(AnActionEvent e) {
    ToolWindow dbg = ToolWindowManager.getInstance(e.getProject()).getToolWindow("Debug");
    dbg.show(null);
    DataContext dc = e.getDataContext();
    dbg.activate(new Runnable() {
        public void selectContent(String name) {
            for (Content c : cm.getContents()) {
                if (c.getTabName().equals(name)) {
                    cm.setSelectedContent(c);
                    return;
                }
            }
        }

        public String curTabName() {
            return cm.getSelectedContent().getTabName();
        }

        ContentManager cm;

        @Override
        public void run() {
            this.cm = PlatformDataKeys.NONEMPTY_CONTENT_MANAGER.getData(dc);
            if (cm != null) {
                if (curTabName().equals("Console")) {
                    selectContent("Watches");
                } else {
                    selectContent("Console");
                }
            }
        }
    });
}

I've added a new API in 14.1 that will allow to solve this cleanly (RunContentDescriptor.getRunnerLayoutUi()).

Is there youtrack that i can follow?

For what? I have already added the API.

How should i use with "RunnerDescriptor.getRunnerLayoutui"

I try getRunnerLayoutUi(), but It return null, how to get not null value, here is my code and i use groovy 2.4.3, selectedDescriptor.getRunnerUi() is null
.

ArrayList<RunContentDescriptor> getDescriptors(String toolWinName) {
    ExecutionManager.getInstance(pj).contentManager.allDescriptors
}

public RunContentDescriptor getSelectedDescriptor(String twn) {
    Content ctn = dbg.contentManager.selectedContent
    RunContentDescriptor selectedDescriptor

    for (d in getDescriptors(twn)) {
        if (d.executionId == ctn.executionId) {
            selectedDescriptor = d
            break
        }
    }
    selectedDescriptor
}

void actionPerformed(AnActionEvent e) {
    super.actionPerformed(e);
    RunContentDescriptor selectedDescriptor = getSelectedDescriptor("Debug")
    forceRst(selectedDescriptor)
}