See: http://jenkins.ovirt.org/view/01%20Unstable%20Jobs%20(ALL)/job/ovirt-engine-extension-aaa-ldap_master_create-rpms-fc21-x86_64_merged/34/artifact/exported-artifacts/logs.tgz
build logs:

     [copy] Copying 3 files to /builddir/build/BUILD/ovirt-engine-extension-aaa-ldap-1.0.2/target/main
    [javac] Compiling 11 source files to /builddir/build/BUILD/ovirt-engine-extension-aaa-ldap-1.0.2/target/main
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
    [javac] /builddir/build/BUILD/ovirt-engine-extension-aaa-ldap-1.0.2/src/main/java/org/ovirt/engineextensions/aaa/ldap/AttrConversion.java:41: error: reference to Base64 is ambiguous
    [javac]                 return Base64.encode(value.getValue());
    [javac]                        ^
    [javac]   both class com.unboundid.util.Base64 in com.unboundid.util and class java.util.Base64 in java.util match
    [javac] /builddir/build/BUILD/ovirt-engine-extension-aaa-ldap-1.0.2/src/main/java/org/ovirt/engineextensions/aaa/ldap/AttrConversion.java:45: error: reference to Base64 is ambiguous
    [javac]                     return new ASN1OctetString(Base64.decode(value));
    [javac]                                                ^
    [javac]   both class com.unboundid.util.Base64 in com.unboundid.util and class java.util.Base64 in java.util match
    [javac] /builddir/build/BUILD/ovirt-engine-extension-aaa-ldap-1.0.2/src/main/java/org/ovirt/engineextensions/aaa/ldap/MapProperties.java:23: warning: [overrides] Class MapProperties overrides equals, but neither it nor any superclass overrides hashCode method
    [javac] public class MapProperties {
    [javac]        ^
    [javac] 2 errors
    [javac] 2 warnings