5.1.0.M1: Error 403 while installing gwt console

Downloaded jbpm-5.1.0.M1-installer.zip.
Successfully ran:ant install.guvnor.into.jboss
Successfully ran:ant install.designer.into.jboss
Tried:ant install.jBPM-gwt-console.into.jboss
Got:BUILD FAILED.
Console output was:
Buildfile: E:\jbpm-installer\build.xml

download.h2.check:
[echo] Checking h2 download ...

download.h2:
[echo] Getting h2 ...
[get] Getting: http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar
[get] To: E:\Chaitanya\003-chaith-downloads-unzipped\jbpm-5.1.0.M1-installer\jbpm-installer\db\driver\h2.jar
[get] Error opening connection java.io.IOException: Server returned HTTP response code: 403 for URL: http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar
[get] Error opening connection java.io.IOException: Server returned HTTP response code: 403 for URL: http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar
[get] Error opening connection java.io.IOException: Server returned HTTP response code: 403 for URL: http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar
[get] Can't get http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar to E:\Chaitanya\003-chaith-downloads-unzipped\jbpm-5.1.0.M1-in
staller\jbpm-installer\db\driver\h2.jar

BUILD FAILED
E:\jbpm-installer\build.xml:37: Can't get http://repository.jboss.org/maven2/com/h2database/h2/1.2.124/h2-1.2.124.jar to E:\jbpm-installer\jbpm-installer\db\driver\h2.jar

Total time: 1 second