As of revision 441235, I cannot build the trunk with Maven:
$ mvn -version
Maven version: 2.0.4
$ java -version
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-112)
Java HotSpot(TM) Client VM (build 1.5.0_06-64, mixed mode, sharing)
$mvn install
...
[INFO] Building Abdera Core
[INFO] task-segment: [install]
[INFO]
------------------------------------------------------------------------
----
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [compiler:compile]
Compiling 9 source files to /Users/ugocei/Projects/Apache/abdera/java/
trunk/core/target/classes
[INFO]
------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO]
------------------------------------------------------------------------
[INFO] Compilation failure
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/AbstractXPath.java:[60,27] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/AbstractXPath.java:[64,19] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/AbstractXPath.java:[76,25] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Number
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/ServiceUtil.java:[54,17] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/ServiceUtil.java:[119,23] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/ServiceUtil.java:[121,31] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/ServiceUtil.java:[131,40] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
/Users/ugocei/Projects/Apache/abdera/java/trunk/core/src/main/java/
org/apache/abdera/util/ServiceUtil.java:[208,33] type parameters of
<T>T cannot be determined; no unique maximal instance exists for type
variable T with upper bounds T,java.lang.Object
