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From Antonio Gallardo <agalla...@agssa.net>
Subject [commons-io] NPE on FilenameUtils.equalsNormalizedOnSystem()
Date Fri, 12 Oct 2007 16:48:13 GMT
Hi folks,

The following code in commons-io (1.3.2) throws an NPE exception:

org.apache.commons.io.FilenameUtils
     .equalsNormalizedOnSystem(
             "//a.html",
             "//ab.html");

And here is the exception:

java.lang.NullPointerException: The strings must not be null
    at org.apache.commons.io.IOCase.checkEquals(IOCase.java:141)
    at org.apache.commons.io.FilenameUtils.equals(FilenameUtils.java:984)
    at 
org.apache.commons.io.FilenameUtils.equalsNormalizedOnSystem(FilenameUtils.java:956)
    at CodeSnippet_32.run(CodeSnippet_32.java:4)
    at 
org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain1.eval(ScrapbookMain1.java:20)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at 
org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain.evalLoop(ScrapbookMain.java:54)
    at 
org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookMain.main(ScrapbookMain.java:35)

I think it is wrong the message "The strings must not be null", since 
there is not a null string involved in the call.

Interesting is that is both or 1 of the strings is null it did not 
throws an exception.

Should I fill a JIRA issue for that?

Many thanks in advance for your reply.

Best Regards,

Antonio Gallardo.


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