Unhandled exception in the UI thread.

GAPID Version: 1.6.1:338bb67b0fe291f56f31d69f11ea1a45ed7cfeb6
OS: linux amd64

Please provide detailed steps that led to the error and copy-paste the stack trace.
Extra details from the logs and the trace file would be extra helpful.

Take the trace with unlimited number of frames.
Do couple of actions in the app.
Try to open the trace.

1.6.1 stack trace:
```
java.lang.NullPointerException
at com.google.gapid.widgets.TabArea.layoutComputeSize(TabArea.java:344)
at com.google.gapid.widgets.TabArea$1.computeSize(TabArea.java:68)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.layout.FormData.computeSize(FormData.java:120)
at org.eclipse.swt.layout.FormData.getWidth(FormData.java:149)
at org.eclipse.swt.layout.FormData.getRightAttachment(FormData.java:250)
at org.eclipse.swt.layout.FormLayout.computeWidth(FormLayout.java:271)
at org.eclipse.swt.layout.FormLayout.layout(FormLayout.java:338)
at org.eclipse.swt.layout.FormLayout.computeSize(FormLayout.java:245)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.layout.GridData.computeSize(GridData.java:494)
at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:224)
at org.eclipse.swt.layout.GridLayout.computeSize(GridLayout.java:167)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.layout.FillData.computeSize(FillData.java:29)
at org.eclipse.swt.layout.FillLayout.computeChildSize(FillLayout.java:155)
at org.eclipse.swt.layout.FillLayout.computeSize(FillLayout.java:126)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.custom.StackLayout.computeSize(StackLayout.java:101)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.custom.StackLayout.computeSize(StackLayout.java:101)
at org.eclipse.swt.widgets.Composite.computeSizeInPixels(Composite.java:243)
at org.eclipse.swt.widgets.Control.computeSize(Control.java:825)
at org.eclipse.swt.layout.GridData.computeSize(GridData.java:494)
at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:224)
at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:200)
at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1847)
at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1853)
at org.eclipse.swt.widgets.Composite.setLayoutDeferred(Composite.java:1694)
at org.eclipse.swt.widgets.Display.runDeferredLayouts(Display.java:5075)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4570)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:821)
at org.eclipse.jface.window.Window.open(Window.java:797)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:161)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:62)
at com.google.gapid.Main$UI.lambda$registerWindowExceptionHandler$0(Main.java:113)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:797)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:161)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:62)
at com.google.gapid.Main$UI.lambda$registerWindowExceptionHandler$0(Main.java:113)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:797)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:161)
at com.google.gapid.views.ErrorDialog.showErrorDialog(ErrorDialog.java:62)
at com.google.gapid.Main$UI.lambda$registerWindowExceptionHandler$0(Main.java:113)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:797)
at com.google.gapid.Main$UI.show(Main.java:119)
at com.google.gapid.Main.main(Main.java:68)
```