Re: GXT 2.3.1 Cannot read property 'style' of null on google chrome version 49

Looks to me, based on the stacktrace, that you have a race condition.  Based on the trace, it appears that you are updating an object after receiving data from the server.  There are many things that can affect and effect this timing.  Many GXT elements, especially older GXT versions, have properties that can not be modified until the element is attached the first time.  So if the data comes back before the elements are attached and you attempt to update the widgets, this kind of thing can happen.  That is the best I can say without looking at the code in question.

On Tuesday, March 29, 2016 at 2:42:16 AM UTC-7, akshatha shetty wrote:

We keep getting this issue in chrome 49 when we access pages with grid and hidden columns.And the same issue is not reproducible in Firefox.

Please let me know if any one else face this issue

stack trace for reference 

SEVERE: Uncaught exceptioncom.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot read property 'booleanValue_2_g$' of undefined

at Unknown.wrap_4_g$(Exceptions.java:36)

at Unknown.onSuccess_1651_g$(SharesPage.java:211)

at Unknown.onSuccess_1650_g$(SharesPage.java:205)

at Unknown.onSuccess_1546_g$(CifsConfigCModeOperations.java:686)

at Unknown.onSuccess_1547_g$(CifsConfigCModeOperations.java:674)

at Unknown.onOriginServerRequestSuccess_1_g$(NaZapiServer.java:272)

at Unknown.onSuccess_181_g$(NaHttpServer.java:49)

at Unknown.onSuccess_4_g$(OriginServerRequest.java:354)

at Unknown.passResponse_2_g$(AbstractAuthenticator.java:277)

at Unknown.handleResponse_0_g$(AbstractAuthenticator.java:367)

at Unknown.intercept_2_g$(AbstractAuthenticator.java:262)

at Unknown.onResponseReceived_2_g$(OriginServerRequest.java:264)

at Unknown.fireOnResponseReceived_0_g$(Request.java:250)

at Unknown.onReadyStateChange_0_g$(RequestBuilder.java:412)

at Unknown.anonymous(XMLHttpRequest.java:329)

at Unknown.apply_0_g$(Impl.java:247)

at Unknown.entry0_0_g$(Impl.java:300)

at Unknown.anonymous(Impl.java:72)

error_2_g$ @ ConsoleLogHandler.java:69

ConsoleLogHandler.java:77 Mon Mar 28 11:09:41 GMT+530 2016 

INFO: Shares Page - Hidden

ConsoleLogHandler.java:77 Mon Mar 28 11:09:41 GMT+530 2016 

INFO: API request start : qtree-list-iter

XMLHttpRequest.java:343 Refused to set unsafe header "Content-Length"$setRequestHeader_0_g$ @ XMLHttpRequest.java:343

ConsoleLogHandler.java:77 Mon Mar 28 11:09:41 GMT+530 2016 

INFO: API response received : qtree-list-iter

SuperDevModeLogger.java:71 Error in loading page : 

SuperDevModeLogger.java:75 com.google.web.bindery.event.shared.UmbrellaException: Exception caught: Exception caught: (TypeError) : Cannot read property 'getHeight_33_g$' of null

  at fillInStackTrace_0_g$

  at Throwable_3_g$

  at Exception_4_g$

  at RuntimeException_3_g$

  at UmbrellaException_3_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_6_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

Caused by: com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) : Cannot read property 'getHeight_33_g$' of null

  at fillInStackTrace_0_g$

  at Throwable_3_g$

  at Exception_4_g$

  at RuntimeException_3_g$

  at UmbrellaException_3_g$

  at UmbrellaException_5_g$

  at onPlaceChange_0_g$

  at dispatch_80_g$

  at dispatch_79_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_6_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot read property 'getHeight_33_g$' of null

  at wrap_4_g$

  at adjustHeights_0_g$

  at onAttach_16_g$

  at onAttach_28_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at doAttach_2_g$

  at doAttachChildren_24_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at doAttachChildren_2_g$

  at doAttachChildren_3_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at onAttach_3_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at doAttachChildren_2_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at onAttach_3_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at doAttachChildren_2_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at onAttach_3_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at doAttachChildren_2_g$

  at doAttachChildren_12_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at onAttach_3_g$

  at onAttach_8_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at doAttachChildren_2_g$

  at doAttachChildren_3_g$

  at onAttach_0_g$

  at onAttach_1_g$

  at onAttach_3_g$

  at doAttachNative_0_g$

  at doAttach_1_g$

  at attachChildren_0_g$

  at onLayoutExcecuted_0_g$

  at handleEvent_55_g$

  at handleEvent_54_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at layout_5_g$

  at doLayout_2_g$

  at layout_2_g$

  at layout_4_g$

  at doLayout_2_g$

  at layout_2_g$

  at layout_4_g$

  at layout_1_g$

  at layout_3_g$

  at showPage_3_g$

  at showPage_5_g$

  at addPageToWorkAreaPanel_1_g$

  at updateWorkAreaPanel_2_g$

  at navigateToPage_0_g$

  at start_12_g$

  at tryStart_0_g$

  at onPlaceChange_0_g$

  at dispatch_80_g$

  at dispatch_79_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_6_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

error_1_g$ @ SuperDevModeLogger.java:75

SuperDevModeLogger.java:71 Error in loading page : 

SuperDevModeLogger.java:75 com.google.web.bindery.event.shared.UmbrellaException: Exception caught: Exception caught: (TypeError) : Cannot read property 'style' of null

  at fillInStackTrace_0_g$

  at Throwable_3_g$

  at Exception_4_g$

  at RuntimeException_3_g$

  at UmbrellaException_3_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_7_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

Caused by: com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) : Cannot read property 'style' of null

  at fillInStackTrace_0_g$

  at Throwable_3_g$

  at Exception_4_g$

  at RuntimeException_3_g$

  at UmbrellaException_3_g$

  at UmbrellaException_5_g$

  at onPlaceChange_0_g$

  at dispatch_80_g$

  at dispatch_79_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_7_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

Caused by: com.google.gwt.core.client.JavaScriptException: (TypeError) : Cannot read property 'style' of null

  at wrap_4_g$

  at $getStyle_0_g$

  at adjustCellWidth_0_g$

  at adjustColumnWidths_0_g$

  at updateAllColumnWidths_1_g$

  at updateAllColumnWidths_0_g$

  at updateAllColumnWidths_2_g$

  at fitColumns_5_g$

  at layout_8_g$

  at layout_7_g$

  at calculateVBar_1_g$

  at refresh_4_g$

  at refresh_8_g$

  at refresh_16_g$

  at refresh_24_g$

  at onClear_1_g$

  at storeClear_2_g$

  at handleEvent_40_g$

  at handleEvent_39_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at removeAll_5_g$

  at updateRows_0_g$

  at updateRows_1_g$

  at updateRows_2_g$

  at resize_4_g$

  at layout_8_g$

  at layout_7_g$

  at calculateVBar_1_g$

  at onResize_21_g$

  at setSize_6_g$

  at setSize_12_g$

  at setItemSize_0_g$

  at onLayout_1_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at applyLayout_0_g$

  at onLayout_3_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at applyLayout_0_g$

  at onLayout_3_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at setSize_12_g$

  at setItemSize_0_g$

  at onLayout_1_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at setSize_12_g$

  at setItemSize_0_g$

  at onLayout_1_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at setSize_12_g$

  at setItemSize_0_g$

  at onLayout_1_g$

  at layout_5_g$

  at handleEvent_72_g$

  at run_10_g$

  at delay_1_g$

  at onResize_10_g$

  at handleEvent_71_g$

  at handleEvent_70_g$

  at callListener_0_g$

  at fireEvent_2_g$

  at fireEvent_8_g$

  at setSize_6_g$

  at applyLayout_0_g$

  at onLayout_3_g$

  at layout_5_g$

  at doLayout_2_g$

  at layout_2_g$

  at layout_4_g$

  at layout_1_g$

  at layout_3_g$

  at addSettingPanel_0_g$

  at showSVMSettingsPanel_0_g$

  at navigateToPage_0_g$

  at start_12_g$

  at tryStart_0_g$

  at onPlaceChange_0_g$

  at dispatch_80_g$

  at dispatch_79_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_17_g$

  at goTo_0_g$

  at processPlace_2_g$

  at processPlace_1_g$

  at navigateToPlace_0_g$

  at onSelect_7_g$

  at dispatch_322_g$

  at dispatch_321_g$

  at dispatch_0_g$

  at dispatchEvent_2_g$

  at doFire_0_g$

  at fireEvent_12_g$

  at fireEvent_11_g$

  at fireEvent_28_g$

  at onClick_187_g$

  at onBrowserEvent_34_g$

  at onBrowserEvent_26_g$

  at onBrowserEvent_27_g$

  at onBrowserEvent_28_g$

  at dispatchEventImpl_0_g$

  at dispatchEvent_4_g$

  at dispatchEvent_6_g$

  at apply_0_g$

  at entry0_0_g$

  at anonymous

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