You app is not loaded in the system classloader in geronimo, and
almost certainly not in any other app server or non-trivial framework
either.
You should be using
getClass().getClassLoader().getResourceAsStream()
or
MyClass.class.getClassLoader().getResourceAsStream().
hope this helps
david jencks
On Mar 30, 2008, at 9:52 AM, Cedric Hurst wrote:
I have a utility JAR which reads from a flat file ("cities.txt")
which is
contained within the JAR itself. This file is used to initially
populate a
collection in memory. I'm using the
ClassLoader.getSystemResourceAsStream()
method to retrieve this flat file as an InputStream within my
utility JAR
class. In Java SE, I can add the utility JAR the the classpath of
a client
and it will find the flat file just fine. But if I try to deploy
this JAR
to Geronimo and use it within a web application,
ClassLoader.getSystemResourcesAsStream() returns null. I'm guessing
Geronimo is doing some tricky things which involve overriding the
system
classloader. Here's the stack trace.
java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:82)
at java.io.InputStreamReader.<init>(InputStreamReader.java:89)
at util.cityLookup.Lookup.init(Lookup.java:21)
at util.cityLookup.Lookup.checkInitilization(Lookup.java:45)
at util.cityLookup.Lookup.citiesBeginningWith(Lookup.java:52)
at web.jsf.CitySuggester.getCityList(CitySuggester.java:10)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:79)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at org.apache.el.parser.AstValue.invoke(AstValue.java:131)
at org.apache.el.MethodExpressionImpl.invoke
(MethodExpressionImpl.java:276)
at
org.apache.myfaces.el.convert.MethodExpressionToMethodBinding.invoke
(MethodExpressionToMethodBinding.java:73)
... 30 more
I've attached the JAR file. Is there an alternate means of
accessing the
flat file within my Lookup class (without using absolute paths)?
http://www.nabble.com/file/p16384195/cityLookup-1.0-NABBLE.jar
cityLookup-1.0-NABBLE.jar
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