edu.umd.cs.findbugs.ba.npe
Class NullDerefAndRedundantComparisonFinder

java.lang.Object
  edu.umd.cs.findbugs.ba.npe.NullDerefAndRedundantComparisonFinder

public class NullDerefAndRedundantComparisonFinder
extends java.lang.Object

A user-friendly front end for finding null pointer dereferences and redundant null comparisions.

Author:

David Hovemeyer

See Also:

IsNullValueAnalysis

Constructor Summary

NullDerefAndRedundantComparisonFinder(ClassContext classContext, org.apache.bcel.classfile.Method method, NullDerefAndRedundantComparisonCollector collector)
Constructor.

Method Summary

void	execute()
static BugAnnotation	findAnnotationFromValueNumber(org.apache.bcel.classfile.Method method, Location location, ValueNumber valueNumber, ValueNumberFrame vnaFrame) Deprecated. Use ValueNumberSourceInfo.findRequiredAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame, String) instead
static FieldAnnotation	findFieldAnnotationFromValueNumber(org.apache.bcel.classfile.Method method, Location location, ValueNumber valueNumber, ValueNumberFrame vnaFrame) Deprecated. Use ValueNumberSourceInfo.findFieldAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead
static LocalVariableAnnotation	findLocalAnnotationFromValueNumber(org.apache.bcel.classfile.Method method, Location location, ValueNumber valueNumber, ValueNumberFrame vnaFrame) Deprecated. Use ValueNumberSourceInfo.findLocalAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead
static XField	findXFieldFromValueNumber(org.apache.bcel.classfile.Method method, Location location, ValueNumber valueNumber, ValueNumberFrame vnaFrame) Deprecated. Use ValueNumberSourceInfo.findXFieldFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullDerefAndRedundantComparisonFinder

public NullDerefAndRedundantComparisonFinder(ClassContext classContext,
                                             org.apache.bcel.classfile.Method method,
                                             NullDerefAndRedundantComparisonCollector collector)

Constructor.

Parameters:

classContext - the ClassContext

method - the method to analyze

collector - the NullDerefAndRedundantComparisonCollector used to report null derefs and redundant null comparisons

Method Detail

execute

public void execute()

findXFieldFromValueNumber

@Deprecated
public static XField findXFieldFromValueNumber(org.apache.bcel.classfile.Method method,
                                                          Location location,
                                                          ValueNumber valueNumber,
                                                          ValueNumberFrame vnaFrame)

Deprecated. Use ValueNumberSourceInfo.findXFieldFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead

findFieldAnnotationFromValueNumber

@Deprecated
public static FieldAnnotation findFieldAnnotationFromValueNumber(org.apache.bcel.classfile.Method method,
                                                                            Location location,
                                                                            ValueNumber valueNumber,
                                                                            ValueNumberFrame vnaFrame)

Deprecated. Use ValueNumberSourceInfo.findFieldAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead

findLocalAnnotationFromValueNumber

@Deprecated
public static LocalVariableAnnotation findLocalAnnotationFromValueNumber(org.apache.bcel.classfile.Method method,
                                                                                    Location location,
                                                                                    ValueNumber valueNumber,
                                                                                    ValueNumberFrame vnaFrame)

Deprecated. Use ValueNumberSourceInfo.findLocalAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame) instead

findAnnotationFromValueNumber

@Deprecated
public static BugAnnotation findAnnotationFromValueNumber(org.apache.bcel.classfile.Method method,
                                                                     Location location,
                                                                     ValueNumber valueNumber,
                                                                     ValueNumberFrame vnaFrame)

Deprecated. Use ValueNumberSourceInfo.findRequiredAnnotationFromValueNumber(Method,Location,ValueNumber,ValueNumberFrame, String) instead

Parameters:

method - TODO

location -

valueNumber -

vnaFrame -

Returns:

the annotation