Webmaster Forum / ColdFusion / Advanced Techniques / August 2007

I've been receiving an error when I try to access a Java object, more
specifically a constant in a Java object. What's frustrating is that this error
occurs on one ColdFusion server but not on another. As far as I can tell there
is no major difference between these two CF servers. The constant in question
is an object itself, though this doesn't matter as calling a method in the
object yields the same result.

What I'm hoping to get from this forum is some idea of why this error might be
occurring. That is, what the error means. The exception.log message has me
baffled, but perhaps other people have dealt with a similar error. Below is the
stack trace (with some pieces of data removed for security's sake). Note that
the NoClassDefFoundError cannot be referring to my Java object, as the constant
I'm referring to is quite clearly there. Also note that the Java object has a
unique name and wouldn't be confused with another class on the server (I've
tried changing its name, but still got the same result).

"Error","jrpp-33","08/28/07","18:09:51","<removed>"," The specific sequence of
files included or processed is: <path removed>/test.cfm, line: 29 "
java.lang.NoClassDefFoundError
    at sun.misc.Unsafe.ensureClassInitialized(Native Method)
    at
sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFacto
ry.java:20)
    at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:122)
    at java.lang.reflect.Field.acquireFieldAccessor(Field.java:779)
    at java.lang.reflect.Field.getFieldAccessor(Field.java:760)
    at java.lang.reflect.Field.get(Field.java:228)
    at coldfusion.runtime.StructBean.resolveName(StructBean.java:117)
    at coldfusion.runtime.Scope.get(Scope.java:54)
    at coldfusion.runtime.DotResolver.resolve(DotResolver.java:42)
    at coldfusion.runtime.DotResolver.resolve(DotResolver.java:62)
    at coldfusion.runtime.DotResolver.resolveSplitNameInMap(DotResolver.java:96)
    at coldfusion.runtime.CfJspPage._resolve(CfJspPage.java:1011)
    at coldfusion.runtime.CfJspPage._resolveAndAutoscalarize(CfJspPage.java:1123)
    at cftest2ecfm584827743.runPage(<path removed>/test.cfm:29)
    at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:152)
    at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:349)
    at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
    at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:225)
    at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
    at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:69)
    at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:52)
    at
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilt
er.java:28)
    at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
    at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
    at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
    at
coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:115)
    at coldfusion.CfmServlet.service(CfmServlet.java:107)
    at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:78)
    at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
    at com.intergral.fusionreactor.filter.FusionReactorFilter.B(Unknown Source)
    at com.intergral.fusionreactor.filter.FusionReactorFilter.A(Unknown Source)
    at com.intergral.fusionreactor.filter.FusionReactorFilter.doFilter(Unknown
Source)
    at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
    at jrun.servlet.FilterChain.service(FilterChain.java:101)
    at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
    at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
    at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
    at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:541)
    at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:204)
    at
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:318)
    at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:426)
    at
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:264)
    at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

Any help or suggestions are greatly appreciated.