MAVEN-1733 : set maven.compile.fork=true. It seems to reduce the number of times when the bootstrap fails because it can't delete a directory. It's a known problem in java and ant : See the windows note on http://ant.apache.org/manual/CoreTasks/javac.html

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@405194 13f79535-47bb-0310-9956-ffa450edef68

plugins-parent/project.properties

@@ -92,6 +92,7 @@ maven.jar.maven = ${maven.home}/lib/maven.jar
 maven.compile.target=1.3
 maven.compile.source=1.3
 maven.compile.encoding=UTF-8
+maven.compile.fork=true
 
 #=====
 # Announcement plugin properties