OriginalCompleteBefore	OriginalCompleteAfter	Before	After	Project	Commit	CompilationUnit	LineNos	Names	TemplateVariableToCodeBefore	RelevantImports	TemplateVariableToCodeAfter	isRelevant	isSafe
nns = new ArrayList<NamenodeContext>()	nns = new ArrayList<>()	new ArrayList<NamenodeContext>()	new ArrayList<>()	hadoop	ca4f209b49e3aad6a80306f7342c9b6b560a79a7	org.apache.hadoop.hdfs.server.federation.RouterDFSCluster	_1 418 _2 476	_1 nns _2 nns	xyz new ArrayList<NamenodeContext>()	java.util.ArrayList	xyz new ArrayList<>()	AssignedTo	True