Name: gm110360 Date: 06/01/2004


FULL PRODUCT VERSION :
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b51)
Java HotSpot(TM) Client VM (build 1.5.0-beta2-b51, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The following Code causes a NPE while loading the properties from an XML file.

Cause is the "empty" property which is not property checked in line 99 in java.util.XMLUtils#importProperties.



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run the above code

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The result should probably be the same, if as the property instance had been saved to a plain properties file, i.e. an empty string returned for the property "empty".
ACTUAL -
the file does not even load

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.NullPointerException
at java.util.XMLUtils.importProperties(XMLUtils.java:99)
at java.util.XMLUtils.load(XMLUtils.java:69)
at java.util.Properties.loadFromXML(Properties.java:700)
at Test1.main(Test1.java:21)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;

public class Test1 {
    public static void main(String[] args) {
        Properties props = new Properties();
        props.setProperty("empty", "");
        props.setProperty("foo", "bar");
        try {
            FileOutputStream out = new FileOutputStream("Foo.dat");
            props.storeToXML(out, null);
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Properties props2 = new Properties();
        try {
            props2.loadFromXML(new FileInputStream("Foo.dat"));
            props2.list(System.out);
        } catch (Exception e1) {
            e1.printStackTrace();
        }
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Don't store empty strings in a Property instance which gets saved to XML.
(Incident Review ID: 275480)
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