Question

Object Instantiation Exception

Asked by: davidvilson

Hi friends,
I am running a coldfusion page that uses java objects I guess..(previous developer has made the code). Since im not expert, im not understanding java.

This page runs good in server but throwing the below error when executed in my local computer.

Same files are there in both prod server and local computer..
Can anyone tell me, by seeing the below error, what could be the problem.

Object Instantiation Exception.
An exception occurred when instantiating a Java object. The class must not be an interface or an abstract class. Error: ''.
 
The error occurred in C:\web_projects\rbent\cfc\marcWriter.cfc: line 191
Called from C:\web_projects\rbent\cart\dsp_custom_marc_download.cfm: line 44
Called from C:\web_projects\rbent\cart\fbx_switch.cfm: line 115
Called from C:\web_projects\rbent\cart\fbx_switch.cfm: line 1
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 241
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 1
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 1
Called from C:\web_projects\rbent\index.cfm: line 19
Called from C:\web_projects\rbent\cfc\marcWriter.cfc: line 191
Called from C:\web_projects\rbent\cart\dsp_custom_marc_download.cfm: line 44
Called from C:\web_projects\rbent\cart\fbx_switch.cfm: line 115
Called from C:\web_projects\rbent\cart\fbx_switch.cfm: line 1
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 241
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 1
Called from C:\web_projects\rbent\fbx_fusebox30_CF50.cfm: line 1
Called from C:\web_projects\rbent\index.cfm: line 19
 
189 :         <cfset filePath = This.marcFolderPathIn & '\' & getMarcRec.prmr_mrc_file>
190 :         <cfset readFile = createObject("java", "java.io.FileInputStream")>
191 : 		<cfset infile = readFile.init(filePath)>
192 : 		
193 : 		<!--- //readfile marc content --->

                                  
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Asked On
2009-10-02 at 06:15:11ID24780048
Tags

Java

,

coldfusion

Topics

ColdFusion Studio

,

Sun Java System Web Server

,

Java Programming Language

Participating Experts
3
Points
500
Comments
8

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Answers

 

by: SidFishesPosted on 2009-10-02 at 07:56:53ID: 25478525

I'm not a java guy at all but one quick thing to try.. make sure your java app is registered in the classpath in cfadmin

full details here

http://blogs.adobe.com/cantrell/archives/2004/07/the_definitive.html


after that...I'm out of ideas.

 

by: _agx_Posted on 2009-10-02 at 08:07:06ID: 25478635

> <cfset readFile = createObject("java", "java.io.FileInputStream")>
><cfset infile = readFile.init(filePath)>

That class comes with the jvm so you don't need to install anything.  The most likely cause is your filePath is wrong or the file you're trying to read is locked.  Verify your filepath is correct.

<cfoutput>
filePath = #filePath#<br>      
FileExists = #FileExists(filePath)#<br>
</cfoutput>

> Object Instantiation Exception.
> An exception occurred when instantiating a Java object. The class must not be an
> interface or an abstract class. Error: ''.

That's a catch all error message that doesn't tell you much. You have to enable robust debugging in the CF Admin and look at the stack trace to get the true cause of the error.

 

by: azadisaryevPosted on 2009-10-02 at 08:42:25ID: 25478968

i am not a java guy either, ,but another thing to try is to change your code:

<cfset readFile = createObject("java", "java.io.FileInputStream")>
<cfset infile = readFile.init(filePath)>

to this one liner:

<cfset readFile = createObject("java", "java.io.FileInputStream").init(filePath)>

many Java classes require to be initiated with proper init() method...

if you are on a shared hosting then it is very possible that your hosting provider has disabled access to internal cf java components... in which case there's nothing you can do unless your hosting provider enables it for you. check with your hosting provider if access to native java classes is allowed or not.

Azadi

 

by: _agx_Posted on 2009-10-02 at 09:43:38ID: 25479588

azadisaryev
>many Java classes require to be initiated with proper init() method...

Yes, the code is using init() on the second line

> This page runs good in server but throwing the below error when executed in my local computer.

Since the error is occurring on your local computer, I am assuming permissions are not a problem.  But Azadi makes a valid point.  CreateObject("java", ...) must be enabled for that code to work.  But enable robust debugging and look at the stack trace.  If permissions are the problem, the stack trace should tell you that.

 

by: davidvilsonPosted on 2009-10-05 at 11:08:47ID: 25497811

Even after changin that to a one liner, it did not work and gave same error.
Also, I have the robust debugging trace..:

Stack Trace
at cfmarcWriter2ecfc459175464$funcWRITECUSTOMMARC.runFunction(C:\web_projects\rbent\cfc\marcWriter.cfc:192) at cfdsp_custom_marc_download2ecfm987612710.runPage(C:\web_projects\rbent\cart\dsp_custom_marc_download.cfm:44) at cffbx_switch2ecfm688839629._factor120(C:\web_projects\rbent\cart\fbx_switch.cfm:115) at cffbx_switch2ecfm688839629.runPage(C:\web_projects\rbent\cart\fbx_switch.cfm:1) at cffbx_fusebox30_CF502ecfm1842840089._factor4(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:241) at cffbx_fusebox30_CF502ecfm1842840089._factor5(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1) at cffbx_fusebox30_CF502ecfm1842840089.runPage(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1) at cfindex2ecfm2083517834.runPage(C:\web_projects\rbent\index.cfm:19) at cfmarcWriter2ecfc459175464$funcWRITECUSTOMMARC.runFunction(C:\web_projects\rbent\cfc\marcWriter.cfc:192) at cfdsp_custom_marc_download2ecfm987612710.runPage(C:\web_projects\rbent\cart\dsp_custom_marc_download.cfm:44) at cffbx_switch2ecfm688839629._factor120(C:\web_projects\rbent\cart\fbx_switch.cfm:115) at cffbx_switch2ecfm688839629.runPage(C:\web_projects\rbent\cart\fbx_switch.cfm:1) at cffbx_fusebox30_CF502ecfm1842840089._factor4(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:241) at cffbx_fusebox30_CF502ecfm1842840089._factor5(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1) at cffbx_fusebox30_CF502ecfm1842840089.runPage(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1) at cfindex2ecfm2083517834.runPage(C:\web_projects\rbent\index.cfm:19)

java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
      at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
      at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
      at coldfusion.runtime.java.JavaProxy.CreateObject(JavaProxy.java:156)
      at coldfusion.runtime.java.JavaProxy.invoke(JavaProxy.java:63)
      at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2272)
      at cfmarcWriter2ecfc459175464$funcWRITECUSTOMMARC.runFunction(C:\web_projects\rbent\cfc\marcWriter.cfc:192)
      at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:418)
      at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:360)
      at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:324)
      at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:59)
      at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:277)
      at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:463)
      at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:453)
      at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:320)
      at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2222)
      at coldfusion.tagext.lang.InvokeTag.doEndTag(InvokeTag.java:358)
      at cfdsp_custom_marc_download2ecfm987612710.runPage(C:\web_projects\rbent\cart\dsp_custom_marc_download.cfm:44)
      at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196)
      at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370)
      at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2661)
      at cffbx_switch2ecfm688839629._factor120(C:\web_projects\rbent\cart\fbx_switch.cfm:115)
      at cffbx_switch2ecfm688839629.runPage(C:\web_projects\rbent\cart\fbx_switch.cfm:1)
      at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196)
      at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370)
      at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2661)
      at cffbx_fusebox30_CF502ecfm1842840089._factor4(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:241)
      at cffbx_fusebox30_CF502ecfm1842840089._factor5(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1)
      at cffbx_fusebox30_CF502ecfm1842840089.runPage(C:\web_projects\rbent\fbx_fusebox30_CF50.cfm:1)
      at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196)
      at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370)
      at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2661)
      at cfindex2ecfm2083517834.runPage(C:\web_projects\rbent\index.cfm:19)
      at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:196)
      at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:370)
      at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
      at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:279)
      at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
      at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
      at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
      at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
      at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
      at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:74)
      at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
      at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
      at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
      at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
      at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
      at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:126)
      at coldfusion.CfmServlet.service(CfmServlet.java:175)
      at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
      at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
      at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
      at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
      at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
      at jrun.servlet.FilterChain.service(FilterChain.java:101)
      at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
      at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
      at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
      at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
      at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
      at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)
      at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
      at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
      at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
Caused by: java.io.FileNotFoundException: C:\marc_files\54933.mrc (The system cannot find the path specified)
      at java.io.FileInputStream.open(Native Method)
      at java.io.FileInputStream.<init>(FileInputStream.java:106)
      at java.io.FileInputStream.<init>(FileInputStream.java:66)
      ... 66 more

 

by: _agx_Posted on 2009-10-05 at 11:15:39ID: 25497899

> Caused by: java.io.FileNotFoundException: C:\marc_files\54933.mrc (The system cannot find the path specified)

Yes. It's as I said.  It can't find the input file or the file is not accessible.

Did you add the debugging code I suggested  to verify the file actually exists?

<cfoutput>
filePath = #filePath#<br>      
FileExists = #FileExists(filePath)#<br>
</cfoutput>

 

by: davidvilsonPosted on 2009-10-05 at 12:02:21ID: 25498411

Where do I keep this code??
<cfoutput>
filePath = #filePath#<br>      
FileExists = #FileExists(filePath)#<br>
</cfoutput>

Just above the
<cfset readFile = createObject("java", "java.io.FileInputStream")>
<cfset infile = readFile.init(filePath)>
?????

 

by: davidvilsonPosted on 2009-10-05 at 12:06:59ID: 25498459

agx,

Thanks. It has solved my issue. File does not exist.

Thank you all for your support..

20120131-EE-VQP-002

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