Compilation of Quartz fails due to SessionBinderJobListener.java:58: cannot find symbol

[bond-]

Grails version : 2.0.0 (Final)
Quartz plugin version: 0.4.2

Compiling 171 source files.
Error Compilation error: startup failed:
Compile error during compilation with javac.
/home/me/.grails/2.0.0.BUILD-SNAPSHOT/projects/myproj/plugins/quartz-0.4.2/src/java/org/codehaus/groovy/grails/plugins/quartz/listeners/SessionBinderJobListener.java:58: cannot find symbol
symbol : variable MANUAL
location: class org.hibernate.FlushMode
if (!FlushMode.MANUAL.equals(sessionHolder.getSession().getFlushMode())) {
^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

http://jira.grails.org/browse/GPQUARTZ-97