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Bug 397545

Summary:	Java Remote Object throws exception if "set" is called twice for same property
Product:	[RT] RAP	Reporter:	Tim Buschtoens <tbuschto>
Component:	RWT	Assignee:	Project Inbox <rap-inbox>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P2	CC:	tbuschto
Version:	2.0
Target Milestone:	2.0 RC1
Hardware:	All
OS:	All
Whiteboard:

Description Tim Buschtoens

2013-01-07 05:22:52 EST

Calling RemoteObject#set more than once for the same property, on the same instance, in the same request causes an Exception:

java.lang.IllegalArgumentException: Duplicate property size
	at org.eclipse.rap.rwt.internal.protocol.Operation.appendProperty(Operation.java:45)
	at org.eclipse.rap.rwt.internal.protocol.ProtocolMessageWriter.appendSet(ProtocolMessageWriter.java:82)
	at org.eclipse.rap.rwt.internal.protocol.ProtocolMessageWriter.appendSet(ProtocolMessageWriter.java:77)
	at org.eclipse.rap.rwt.internal.remote.RemoteObjectImpl$6.render(RemoteObjectImpl.java:93)
	at org.eclipse.rap.rwt.internal.remote.RemoteObjectImpl.render(RemoteObjectImpl.java:164)
	at org.eclipse.rap.rwt.internal.remote.RemoteObjectLifeCycleAdapter.render(RemoteObjectLifeCycleAdapter.java:34)
	at org.eclipse.swt.internal.widgets.displaykit.DisplayLCA.render(DisplayLCA.java:125)
	at org.eclipse.rap.rwt.internal.lifecycle.Render.execute(Render.java:29)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.continueLifeCycle(RWTLifeCycle.java:164)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.sleep(RWTLifeCycle.java:238)
	at org.eclipse.swt.widgets.Display.sleep(Display.java:1179)
	at com.eclipsesource.widgets.ckeditor.demo.CkEditorDemo.runReadAndDispatchLoop(CkEditorDemo.java:76)
	at com.eclipsesource.widgets.ckeditor.demo.CkEditorDemo.createUI(CkEditorDemo.java:69)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.createUI(RWTLifeCycle.java:186)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle$UIThreadController.run(RWTLifeCycle.java:298)
	at java.lang.Thread.run(Unknown Source)
	at org.eclipse.rap.rwt.internal.lifecycle.UIThread.run(UIThread.java:104)

Comment 1 Ralf Sternberg

2013-01-07 10:16:29 EST

Fixed with commit eded1fe806199f42ded2096a16f308afa606c4d7.

It's legal to call set sequentially for the same property on a remote object, e.g. when the same value changes multiple times in a row.
When no other operation is rendered meanwhile, the previous value will be overridden, otherwise a new set operation will be created.