Re: Null pointer exception while creating a XMLConfiguration object in a static method.

[Oliver Heger]

Am 11.05.2010 18:50, schrieb arja srinivasu:
Hi,
I have been running into an issue while creating an xml configuration object 
from an xml file, I am using jdk 1.6.0_20 and commons-configuration-1.6.jar, 
similar code works when the method is non-static, appreciate any comments or 
pointers in resolving this issue
Here is the code which is creating this XMLConfiguration object.
privatestatic void load(String dataFilePath)throwsExceptionnull;null;   finalFile dataFile = 
newFile(dataFilePath);"Data file does not exist: "+ dataFile);// this check succeeds no assertion 
error is thrown"Data file is not readable: "+ dataFile);// this check succeeds no assertion error 
is thrown   log.info("Reading the data file: "+ dataFile);newXMLConfiguration(dataFileURL);
{
    URL dataFileURL =
    HierarchicalConfiguration dataFromFile =
    assertTrue(dataFile.exists(),
    assertTrue(dataFile.canRead(),
    dataFileURL = ConfigurationUtils.locate(dataFilePath); //Returns a proper 
url of the file passed.
    dataFromFile =
}

Your code example got somehow messed up and is hardly readable. Can you 
please repost?

Oliver


Here is a partial stack trace of the error:

java.lang.NullPointerException
at java.net.URLDecoder.decode(Unknown Source) [na:1.6.0_20]
at java.net.URLDecoder.decode(Unknown Source) [na:1.6.0_20]
at org.apache.commons.configuration.ConfigurationUtils.fileFromURL(
at org.apache.commons.configuration.AbstractFileConfiguration.load(
at org.apache.commons.configuration.AbstractFileConfiguration.load(
at org.apache.commons.configuration.AbstractHierarchicalFileConfiguration.load(
at 
org.apache.commons.configuration.AbstractHierarchicalFileConfiguration.<init>(
at org.apache.commons.configuration.XMLConfiguration.<init>(

Thanks in advance.
--Srinu: nullConfigurationUtils.java:719) 
[commons-configuration-1.6.jar:1.6]AbstractFileConfiguration.java:276) 
[commons-configuration-1.6.jar:1.6]AbstractFileConfiguration.java:193) 
[commons-configuration-1.6.jar:1.6]AbstractHierarchicalFileConfiguration.java:164)
 
[commons-configuration-1.6.jar:1.6]AbstractHierarchicalFileConfiguration.java:126)
 [commons-configuration-1.6.jar:1.6]XMLConfiguration.java:267) 
[commons-configuration-1.6.jar:1.6]





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