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Bug 243981

Summary:	ClassCastException: java.lang.String cannot be cast to org.json.simple.JSONObject
Product:	web	Reporter:	Vladimir Riha <vriha>
Component:	Inspection	Assignee:	Jan Stola <jstola>
Status:	VERIFIED FIXED
Severity:	normal
Priority:	P1
Version:	8.0.1
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	209196
Attachments:	stacktrace

Description Vladimir Riha 2014-04-22 06:05:57 UTC

Build: NetBeans IDE Dev (Build 201404220001)
VM: Java HotSpot(TM) Client VM, 25.0-b70, Java(TM) SE Runtime Environment, 1.8.0-b132
OS: Linux

User Comments:
vriha: Ran HTML5 sample project Responsive Rabbits in embedded browser, turned on inspection mode, click on Welcome title




Stacktrace: 
java.lang.ClassCastException: java.lang.String cannot be cast to org.json.simple.JSONObject
   at org.netbeans.modules.web.webkit.debugging.api.css.Rule.<init>(Rule.java:125)
   at org.netbeans.modules.web.webkit.debugging.api.css.MatchedStyles.<init>(MatchedStyles.java:73)
   at org.netbeans.modules.web.webkit.debugging.api.css.CSS.getMatchedStyles(CSS.java:286)
   at org.netbeans.modules.web.inspect.webkit.ui.CSSStylesSelectionPanel.updateMatchedRules(CSSStylesSelectionPanel.java:644)
   at org.netbeans.modules.web.inspect.webkit.ui.CSSStylesSelectionPanel$9.run(CSSStylesSelectionPanel.java:633)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)

Comment 1 Vladimir Riha 2014-04-22 06:05:59 UTC

Created attachment 146872 [details]
stacktrace

Comment 2 Jan Stola 2014-04-22 09:01:57 UTC

Thank you for catching this. It is a consequence of the fix of issue 241098. The exception shows that "selectorList" property is present in given CSS Rule, it has "selectors" sub-property but its type is array of Strings. Unfortunately, I have tested this on the latest version of Chrome (where the type of "selectors" is array of JSONObjects) and Embedded Browser from JDK 7 (where "selectorList" is not present). I overlooked that there is another version of the protocol (used by Embedded Browser in JDK 8).

For the sake of completeness, there are the mentioned changes in Chrome:
Introduction of "selectorList" (with an array of Strings):
http://src.chromium.org/viewvc/blink/trunk/Source/devtools/Inspector-1.1.json?r1=129469&r2=129470&
Replacement of the array of Strings by an array of Selectors (JSONObjects):
http://src.chromium.org/viewvc/blink/trunk/Source/devtools/protocol.json?r1=159732&r2=159733&

Comment 3 Jan Stola 2014-04-22 09:40:30 UTC

Fixed by http://hg.netbeans.org/web-main/rev/d45037796e43

Comment 4 Vladimir Riha 2014-06-04 09:30:24 UTC

Verified, thank you

Product Version: NetBeans IDE Dev (Build 201406040001)
Java: 1.8.0_05; Java HotSpot(TM) Client VM 25.5-b02
Runtime: Java(TM) SE Runtime Environment 1.8.0_05-b13
System: Linux version 3.13.0-27-generic running on i386; UTF-8; en_US (nb)
User directory: /home/vriha/.netbeans/dev
Cache directory: /home/vriha/.cache/netbeans/dev