Unsupported major.minor version 49.0

Hello,
I've created a small java class that imports:
java.util.StringTokenizer;
java.util.Arrays;

When I try to use it in Coldfusion I receive an error: Unsupported major.minor version 49.0.
I was thinking that it was caused by wrong compiler - from what I know CF is using version 1.4.2 of java - but most likely I compiled it with 1.4.2.

Do you know what I can do to make this work?
Thanks in advance for all answers...


Here's the error that I encountered:
"Error","jrpp-2","01/19/07","12:00:14","/coldfusion/ListBuster (Unsupported major.minor version 49.0) The specific sequence of files included or processed is: /webroot/test7.cfm, line: 3 "
java.lang.UnsupportedClassVersionError: /coldfusion/ListBuster (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
at coldfusion.bootstrap.BootstrapClassLoader.loadClass(BootstrapClassLoader.java:215)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at coldfusion.runtime.CFPage.createObject(CFPage.java:5783)
at coldfusion.runtime.CFPage.CreateObject(CFPage.java:5677)
at coldfusion.runtime.CFPage.CreateObject(CFPage.java:5642)
at cftest72ecfm1685710219.runPage(/webroot/test7.cfm:3)
at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:152)
at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:349)
at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:225)
at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:51)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:69)
at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:115)
at coldfusion.CfmServlet.service(CfmServlet.java:107)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:78)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:541)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:204)
at jrunx.scheduler.ThreadPool$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)