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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1032) FINDBUGS: DM_STRING_CTOR: Method invokes inefficient new String(String) constructor
Date Wed, 21 Oct 2009 00:01:59 GMT
FINDBUGS: DM_STRING_CTOR: Method invokes inefficient new String(String) constructor
-----------------------------------------------------------------------------------

                 Key: PIG-1032
                 URL: https://issues.apache.org/jira/browse/PIG-1032
             Project: Pig
          Issue Type: Improvement
            Reporter: Olga Natkovich


Dm 	Method org.apache.pig.backend.executionengine.PigSlice.init(DataStorage) invokes toString()
method on a String
Dm 	org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.copyHadoopConfLocally(String)
invokes inefficient new String(String) constructor
Dm 	org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher.getFirstLineFromMessage(String)
invokes inefficient new String(String) constructor
Dm 	org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator.initializeRefs()
invokes inefficient Boolean constructor; use Boolean.valueOf(...) instead
Dm 	org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator.clone()
invokes inefficient new String(String) constructor
Dm 	org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNext(String)
invokes inefficient new String(String) constructor
Dm 	org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.PONot.getNext(Boolean)
invokes inefficient Boolean constructor; use Boolean.valueOf(...) instead
Dm 	org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PhysicalPlan.clone()
invokes inefficient new String(String) constructor
Dm 	new org.apache.pig.data.TimestampedTuple(String, String, int, SimpleDateFormat) invokes
inefficient new String(String) constructor
Dm 	org.apache.pig.impl.io.PigNullableWritable.toString() invokes inefficient new String(String)
constructor
Dm 	org.apache.pig.impl.logicalLayer.LOForEach.clone() invokes inefficient Boolean constructor;
use Boolean.valueOf(...) instead
Dm 	org.apache.pig.impl.logicalLayer.LOGenerate.clone() invokes inefficient Boolean constructor;
use Boolean.valueOf(...) instead
Dm 	org.apache.pig.impl.logicalLayer.LogicalPlan.clone() invokes inefficient new String(String)
constructor
Dm 	org.apache.pig.impl.logicalLayer.LOSort.clone() invokes inefficient Boolean constructor;
use Boolean.valueOf(...) instead
Dm 	org.apache.pig.impl.logicalLayer.optimizer.ImplicitSplitInserter.transform(List) invokes
inefficient Boolean constructor; use Boolean.valueOf(...) instead
Dm 	org.apache.pig.impl.logicalLayer.RemoveRedundantOperators.visit(LOProject) invokes inefficient
new String(String) constructor
Dm 	org.apache.pig.impl.logicalLayer.schema.Schema.getField(String) invokes inefficient new
String(String) constructor
Dm 	org.apache.pig.impl.logicalLayer.schema.Schema.reconcile(Schema) invokes inefficient new
String(String) constructor
Dm 	org.apache.pig.impl.logicalLayer.validators.TypeCheckingVisitor.insertCastForEachInBetweenIfNecessary(LogicalOperator,
LogicalOperator, Schema) invokes inefficient Boolean constructor; use Boolean.valueOf(...)
instead]
Dm 	org.apache.pig.impl.util.SpillableMemoryManager.handleNotification(Notification, Object)
forces garbage collection; extremely dubious except in benchmarking code
Dm 	org.apache.pig.pen.AugmentBaseDataVisitor.GetLargerValue(Object) invokes inefficient new
String(String) constructor
Dm 	org.apache.pig.pen.AugmentBaseDataVisitor.GetSmallerValue(Object) invokes inefficient
new String(String) constructor
Dm 	org.apache.pig.tools.cmdline.CmdLineParser.getNextOpt() invokes inefficient new String(String)
constructor
Dm 	org.apache.pig.tools.parameters.PreprocessorContext.substitute(String) invokes inefficient
new String(String) constructor

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