[OWASP-ESAPI] Problems with Swingset on Leopard

[Andrea Cogliati]

I reply to my own message. The Swingset WAR on the web site has been  
compiled with Java 6 and cannot run on Java 5 (the default Java  
environment on Leopard): that's account for the "Bad version number  
in .class file" in my previous message.

I tried to compile Swingset myself (not very familiar with Eclipse)  
but when I try to run it I always end up with the following error  
message (with either Tomcat 5.5 or 6.0, Java 5 or Java 6):

SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException: Cannot use current request until it is  
set with HTTPUtilities.setCurrentHTTP()
	at  
org 
.owasp.esapi.reference.DefaultHTTPUtilities.getCurrentRequest(Unknown  
Source)
	at org.apache.jsp.index_jsp._jspService(index_jsp.java:60)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at  
org 
.apache 
.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
	at  
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
	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 
.apache 
.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 
233)
	at  
org 
.apache 
.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 
191)
	at  
org 
.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: 
128)
	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: 
286)
	at  
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: 
845)
	at org.apache.coyote.http11.Http11Protocol 
$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java: 
447)
	at java.lang.Thread.run(Thread.java:613)

Any advise?

Andrea
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