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Posted to dev@tomcat.apache.org by bu...@apache.org on 2004/03/08 19:38:03 UTC
DO NOT REPLY [Bug 27520] New: -
NullPointerException when using JspC on webapp tree containing unreadable dir
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http://issues.apache.org/bugzilla/show_bug.cgi?id=27520
NullPointerException when using JspC on webapp tree containing unreadable dir
Summary: NullPointerException when using JspC on webapp tree
containing unreadable dir
Product: Tomcat 5
Version: 5.0.16
Platform: PC
OS/Version: Linux
Status: NEW
Severity: Normal
Priority: Other
Component: Jasper
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: seth@oculan.com
When using JspC, it is possible to get a null pointer exception if the webapp
tree you are attempting to compile contains an unreadable directory. Here are
the lines that cause the stack trace from JspC.java, CVS version 1.61:
806 if (f.exists() && f.isDirectory()) {
807 String[] files = f.list();
808 String ext;
809 for (int i = 0; i < files.length; i++) {
810 File f2 = new File(s, files[i]);
There is no check before line 809 to see if File.list() returned a null value.
Therefore, we get the following stack trace from the jspc Ant task:
[jasper2] java.lang.NullPointerException
[jasper2] at org.apache.jasper.JspC.scanFiles(JspC.java:809)
[jasper2] at org.apache.jasper.JspC.execute(JspC.java:856)
[jasper2] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[jasper2] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[jasper2] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[jasper2] at java.lang.reflect.Method.invoke(Method.java:324)
[jasper2] at org.apache.tools.ant.TaskAdapter.execute(TaskAdapter.java:157)
[jasper2] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:306)
[jasper2] at org.apache.tools.ant.Task.perform(Task.java:401)
[jasper2] at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:102)
[jasper2] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:306)
[jasper2] at org.apache.tools.ant.Task.perform(Task.java:401)
[jasper2] at
org.apache.tools.ant.taskdefs.Parallel$TaskRunnable.run(Parallel.java:457)
[jasper2] at java.lang.Thread.run(Thread.java:536)
It would be much nicer if the task simply logged a warning or ignored the
unreadable directory.
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