Could not process server response:

Error: Error: Operation "create" on target "w2" of type "null" failed:
k.style is undefined
Properties: 
style = NO_TRIM


  Script: {
"head": {
"requestCounter": 6
},
"operations": [ [ "create", "w2", "rwt.widgets.Shell", {
"style": [ "NO_TRIM" ]
} ], [ "listen", "w2", {
"Move": true,
"Resize": true,
"Activate": true,
"Close": true
} ], [ "set", "w2", {
"active": true,
"mode": "maximized",
"minimumSize": [ 80, 0 ],
"activeControl": "w3",
"bounds": [ 0, 0, 1920, 489 ],
"children": [ "w3" ],
"tabIndex": -1,
"visibility": true
} ], [ "create", "w3", "rwt.widgets.Label", {
"parent": "w2",
"style": [ "NONE" ],
"bounds": [ 5, 5, 131, 20 ],
"tabIndex": -1,
"text": "Hello RAP World"
} ], [ "set", "w1", {
"focusControl": "w3"
} ], [ "call", "rwt.client.TextSizeMeasurement", "measureItems", {
"items": [ [ "t1849102189", "Hello RAP World", [ "Verdana", "Lucida Sans", "Arial", "Helvetica", "sans-serif" ], 14, false, false, -1, false ] ]
} ] ]
}
  message: Operation "create" on target "w2" of type "null" failed:
k.style is undefined
Properties: 
style = NO_TRIM

  fileName: http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js
  lineNumber: 228
  stack: Error("Operation \"create\" on target \"w2\" of type \"null\" failed:\nk.style is undefined\nProperties: \nstyle = NO_TRIM\n")@:0
([object Error],[object Array])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Array])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:232
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:96
([object Event])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:96
([object Event])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:14
handleEvent([object Event])@:0
SJOWContentBoundary()@:0

  name: Error
  Stack: Error("Operation \"create\" on target \"w2\" of type \"null\" failed:\nk.style is undefined\nProperties: \nstyle = NO_TRIM\n")@:0
([object Error],[object Array])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Array])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:228
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:232
([object Object])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:96
([object Event])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:96
([object Event])@http://localhost:8080/rwt.standalone.test2/rwt-resources/rap-client.js:14
handleEvent([object Event])@:0
SJOWContentBoundary()@:0

  Debug: off
  Request: {"head":{"rwt_initialize":true},"operations":[["set","w1",{"bounds":[0,0,1920,489],"dpi":[96,96],"colorDepth":32}],["set","rwt.client.ClientInfo",{"timezoneOffset":-60}],["call","rwt.client.TextSizeMeasurement","storeMeasurements",{"results":{"p-785380997":[767,17]}}],["set","w1",{"cursorLocation":[401,504]}]]}
  Phase: 2