But, I should have done this way.
org.osgi.framework.bootdelegation=com.singularity.*
org.osgi.framework.bootdelegation=${eclipselink.bootdelegation}, \
com.sun.btrace, com.sun.btrace.*, \
org.netbeans.lib.profiler, org.netbeans.lib.profiler.*, \
com.singularity.*
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