jsonUtils.toObject() fails with NullPointer or EcmaError/TypeError

[mathias_lin]

I try to use jsonUtils.toObject with a json string or a json object as parameter in the javascript console in Alfresco Enterprise 4.1.5, and getting the following errors.

<blockquote>
<strong>Reference:</strong>
http://docs.alfresco.com/4.0/index.jsp?topic=%2Fcom.alfresco.enterprise.doc%2Freferences%2Fapi-ws-ob...


toObject(jsonString)
Takes a JSON string and converts it to a native JavaScript object.

toObject(jsonObject)
Takes a JSON object and converts it to a native JavaScript object.
</blockquote>

<strong>Test 1</strong>

                var jsonString = '{"test": "test"}';logger.log( jsonUtils.toObject(jsonString) );‍‍‍‍

500 Internal ErrorAn error inside the HTTP server which prevented it from fulfilling the request.10080038 Wrapped Exception (with status template): 10080143 Failed to execute script 'Javascript Console Script': 10080142 TypeError: Cannot find default value for object. (fb91e06fb1303a88bc57085eaaf9692f.js#2)Wrapped Exception (with status template): 10080063 Failed to execute script 'Javascript Console Script': 10080062 TypeError: Cannot find default value for object. (b7b11bfd779a718cabdce9ea9162012f.js#5) org.springframework.extensions.webscripts.WebScriptException: 10080013 Wrapped Exception (with status template): 10080063 Failed to execute script 'Javascript Console Script': 10080062 TypeError: Cannot find default value for object. (b7b11bfd779a718cabdce9ea9162012f.js#5)   at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1067)   at de.fme.jsconsole.ExecuteWebscript.executeScriptContent(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.access$100(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$2.execute(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$2.execute(Unknown Source)   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:401)   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:291)   at de.fme.jsconsole.ExecuteWebscript.runWithTransactionIfNeeded(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.access$000(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$1.doWork(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$1.doWork(Unknown Source)   at org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:529)   at de.fme.jsconsole.ExecuteWebscript.runScriptWithTransactionAndAuthentication(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.execute(Unknown Source)   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:365)   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:517)   at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:333)   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:377)   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:209)   at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)   at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:61)   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465)   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)   at java.lang.Thread.run(Thread.java:680)Caused by: org.alfresco.scripts.ScriptException: 10080063 Failed to execute script 'Javascript Console Script': 10080062 TypeError: Cannot find default value for object. (b7b11bfd779a718cabdce9ea9162012f.js#5)   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:202)   at org.alfresco.repo.processor.ScriptServiceImpl.execute(ScriptServiceImpl.java:212)   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:174)   at org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:102)   … 36 moreCaused by: org.alfresco.error.AlfrescoRuntimeException: 10080062 TypeError: Cannot find default value for object. (b7b11bfd779a718cabdce9ea9162012f.js#5)   at org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:516)   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:198)   … 39 moreCaused by: org.mozilla.javascript.EcmaError: TypeError: Cannot find default value for object. (b7b11bfd779a718cabdce9ea9162012f.js#5)   at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3350)   at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3340)   at org.mozilla.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3356)   at org.mozilla.javascript.ScriptRuntime.typeError1(ScriptRuntime.java:3368)   at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:758)   at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:677)   at org.mozilla.javascript.ScriptRuntime.toString(ScriptRuntime.java:707)   at org.mozilla.javascript.NativeJavaObject.coerceTypeImpl(NativeJavaObject.java:633)   at org.mozilla.javascript.Context.jsToJava(Context.java:1705)   at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:209)   at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:66)   at org.mozilla.javascript.gen.c19._c0(b7b11bfd779a718cabdce9ea9162012f.js:5)   at org.mozilla.javascript.gen.c19.call(b7b11bfd779a718cabdce9ea9162012f.js)   at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393)   at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834)   at org.mozilla.javascript.gen.c19.call(b7b11bfd779a718cabdce9ea9162012f.js)   at org.mozilla.javascript.gen.c19.exec(b7b11bfd779a718cabdce9ea9162012f.js)   at org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:492)         ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

   
   
   
<strong>Test 2</strong>

          var jsonString = "{'test': 'test'}"; logger.log( jsonUtils.toObject(jsonString) );‍‍‍‍

500 Internal ErrorAn error inside the HTTP server which prevented it from fulfilling the request.10080036 Wrapped Exception (with status template): 10080132 Failed to execute script 'Javascript Console Script': nullorg.springframework.extensions.webscripts.WebScriptException: 10080037 Wrapped Exception (with status template): 10080138 Failed to execute script 'Javascript Console Script': null   at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:1067)   at de.fme.jsconsole.ExecuteWebscript.executeScriptContent(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.access$100(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$2.execute(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$2.execute(Unknown Source)   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:401)   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:291)   at de.fme.jsconsole.ExecuteWebscript.runWithTransactionIfNeeded(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.access$000(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$1.doWork(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript$1.doWork(Unknown Source)   at org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:529)   at de.fme.jsconsole.ExecuteWebscript.runScriptWithTransactionAndAuthentication(Unknown Source)   at de.fme.jsconsole.ExecuteWebscript.execute(Unknown Source)   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:365)   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:517)   at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:333)   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:377)   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:209)   at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:132)   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)   at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:61)   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465)   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)   at java.lang.Thread.run(Thread.java:680)Caused by: org.alfresco.scripts.ScriptException: 10080138 Failed to execute script 'Javascript Console Script': null   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:202)   at org.alfresco.repo.processor.ScriptServiceImpl.execute(ScriptServiceImpl.java:212)   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:174)   at org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:102)   … 36 moreCaused by: java.lang.NullPointerException   at org.springframework.extensions.webscripts.json.JSONUtils.toObject(JSONUtils.java:138)   at org.springframework.extensions.webscripts.json.JSONUtils.toObject(JSONUtils.java:118)   at sun.reflect.GeneratedMethodAccessor582.invoke(Unknown Source)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)   at java.lang.reflect.Method.invoke(Method.java:597)   at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:155)   at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:243)   at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:66)   at org.mozilla.javascript.gen.c48._c0(9070d44753d964f375056b15cfef5a86.js:7)   at org.mozilla.javascript.gen.c48.call(9070d44753d964f375056b15cfef5a86.js)   at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393)   at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834)   at org.mozilla.javascript.gen.c48.call(9070d44753d964f375056b15cfef5a86.js)   at org.mozilla.javascript.gen.c48.exec(9070d44753d964f375056b15cfef5a86.js)   at org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:492)   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:198)   … 39 more   ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

                     
                                                                     


<strong>Test 3</strong>

       var jsonString = {'test': 'test'};logger.log( jsonUtils.toObject(jsonString) );                 ‍‍‍‍

500 Internal ErrorAn error inside the HTTP server which prevented it from fulfilling the request.10080041 Wrapped Exception (with status template): 10080162 Failed to execute script 'Javascript Console Script': null‍‍‍‍‍

[kaynezhang]

write like this

var jsonString = '{"test": "test"}'; jsonUtils.toObject(jsonString) ;‍‍‍‍

jsonUtils will convert it correctly, but you can't pass the return result to logger.log(),logger.log only accept string parameter.
so

logger.log( jsonUtils.toObject(jsonString) );‍‍‍

will not work ,but

 var jsonString = '{"test": "test"}'; jsonUtils.toObject(jsonString) ;‍‍

will work

[kaynezhang]

or you can use double quote mark format string

var jsonString  = "{\"lastName\":\"zhang\",\"location\":\"N.A\",\"firstName\":\"kayne\"}";    jsonUtils.toObject(jsonString);‍‍‍‍

you can't use json object directly like below

var jsonString = {'test': 'test'};jsonUtils.toObject(jsonString); ‍‍‍‍

, It 'll throw null pointer exception