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Posted to dev@commons.apache.org by bu...@apache.org on 2005/04/29 23:33:54 UTC
DO NOT REPLY [Bug 34686] New: -
TransformedMap putAll(empty map) causes IllegalArgumentException
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http://issues.apache.org/bugzilla/show_bug.cgi?id=34686
Summary: TransformedMap putAll(empty map) causes
IllegalArgumentException
Product: Commons
Version: 3.1
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: Collections
AssignedTo: commons-dev@jakarta.apache.org
ReportedBy: mlottman@carefx.com
If you create a TransformedMap, and then call map.putAll with an empty map as
an argument, an IllegalArgumentException is thrown. putAll should be able to
handle empty maps without erroring. The error occurs regardless of whether
the decorated map has any contents. The implementation of the Transformers
attached does not matter. I am using Java 1.4.2_07.
Example code:
Map map = TransformedMap.decorate(
new HashMap(),
TransformerUtils.nopTransformer(),
TransformerUtils.nopTransformer());
map.putAll(new HashMap()); // This causes IllegalArgumentException!
Fails with the following error:
java.lang.IllegalArgumentException: Initial capacity must be greater than 0
at org.apache.commons.collections.map.AbstractHashedMap.<init>
(AbstractHashedMap.java:142)
at org.apache.commons.collections.map.AbstractHashedMap.<init>
(AbstractHashedMap.java:127)
at org.apache.commons.collections.map.AbstractLinkedMap.<init>
(AbstractLinkedMap.java:95)
at org.apache.commons.collections.map.LinkedMap.<init>
(LinkedMap.java:78)
at org.apache.commons.collections.map.TransformedMap.transformMap
(TransformedMap.java:153)
at org.apache.commons.collections.map.TransformedMap.putAll
(TransformedMap.java:190)
at net.carefx.contextagent.plugin.ldapuser.PluginTest.main
(PluginTest.java:71)
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