Not able to copy all properties using properties.putAll() method.

[Sonal]

Hi All,

Properties props;
Properties props_;

props_.putAll(props);

I want to copy all properties from "props" object to "props_".But it
fails to copy all values.
Please can any one tell me the reason ?


Thanks.

 

[Manish Pandit]

Hi All,

Properties props;
Properties props_;

props_.putAll(props);

I want to copy all properties from "props" object to "props_".But it
fails to copy all values.
Please can any one tell me the reason ?

Thanks.

Are you sure props is not empty? I wrote a little snippet to check it
out:

Properties p = new Properties();
p.put("A","a");
p.put("B","b");
Properties copy = new Properties();
copy.putAll(p);
System.out.println(p);
System.out.println(copy);

And here is the output:

{A=a, B=b}
{A=a, B=b}

-cheers,
Manish

 

[Daniele Futtorovic]

Hi All,

Properties props;
Properties props_;

props_.putAll(props);

I want to copy all properties from "props" object to "props_".But it
fails to copy all values.
Please can any one tell me the reason ?

Possibly because of the defaults. putAll(Map) will iterate the source. I
don't see entrySet() or the like overridden in Properties, so it will be
Hashtable's version, which won't include the defaults.

DF.

 

[Lew]

Possibly because of the defaults. putAll(Map) will iterate the source. I
don't see entrySet() or the like overridden in Properties, so it will be
Hashtable's version, which won't include the defaults.

Maybe there's some help to be had from
<http://java.sun.com/javase/6/docs/api/java/util/Properties.html#Properties(java.util.Properties)>