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java.lang.NullPointerException: 	at com.pslcl.dtf.core.Core.findDependencies(Core.java:1436)	at com.pslcl.dtf.core.generator.Generator.findDependencies(Generator.java:208)	at com.pslcl.dtf.core.generator.resource.Machine.deploy(Machine.java:191)	at com.pslcl.dtf.core.generator.resource.Machine.deploy(Machine.java:162)	at org.opendof.test.generators.Util.prepMachine(Unknown Source)	at org.opendof.test.generator.oal.OperationsTestGenerator.main(Unknown Source)