Package edu.umd.cs.findbugs.detect

Class UselessSubclassMethod

java.lang.Object

edu.umd.cs.findbugs.visitclass.BetterVisitor

edu.umd.cs.findbugs.visitclass.PreorderVisitor

edu.umd.cs.findbugs.visitclass.AnnotationVisitor

edu.umd.cs.findbugs.visitclass.DismantleBytecode

edu.umd.cs.findbugs.BytecodeScanningDetector

edu.umd.cs.findbugs.detect.UselessSubclassMethod

All Implemented Interfaces:

Detector, Priorities, StatelessDetector, java.lang.Cloneable, org.apache.bcel.classfile.Visitor

public class UselessSubclassMethod
extends BytecodeScanningDetector
implements StatelessDetector

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	UselessSubclassMethod.State

Field Summary

Fields

Modifier and Type	Field	Description
private org.apache.bcel.generic.Type[]	argTypes
private BugReporter	bugReporter
private int	curParm
private int	curParmOffset
private java.util.Set<java.lang.String>	interfaceMethods
private int	invokePC
private UselessSubclassMethod.State	state
private java.lang.String	superclassName

Fields inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode

codeBytes, lineNumberTable, M_BR, M_CP, M_INT, M_PAD, M_R, M_UINT

Fields inherited from interface edu.umd.cs.findbugs.Priorities

EXP_PRIORITY, HIGH_PRIORITY, IGNORE_PRIORITY, LOW_PRIORITY, NORMAL_PRIORITY

Constructor Summary

Constructors

Constructor	Description
UselessSubclassMethod(BugReporter bugReporter)

Method Summary

Modifier and Type	Method	Description
private void	checkParm(int seen, int fastOpBase, int slowOp, int parmSize)
private boolean	differentAttributes(org.apache.bcel.classfile.Method m1, org.apache.bcel.classfile.Method m2)
private org.apache.bcel.classfile.Method	findSuperclassMethod(java.lang.String superclassName, org.apache.bcel.classfile.Method subclassMethod)
java.lang.String	getPackage(java.lang.String classname)
boolean	samePackage(java.lang.String classname1, java.lang.String classname2)
void	sawOpcode(int seen)
(package private) java.util.HashSet<java.lang.String>	thrownExceptions(org.apache.bcel.classfile.Method m)
void	visitAfter(org.apache.bcel.classfile.JavaClass obj)
void	visitClassContext(ClassContext classContext)	Visit the ClassContext for a class which should be analyzed for instances of bug patterns.
void	visitCode(org.apache.bcel.classfile.Code obj)
void	visitMethod(org.apache.bcel.classfile.Method obj)

Methods inherited from class edu.umd.cs.findbugs.BytecodeScanningDetector

getClassContext, report, shouldVisitCode

Methods inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode

afterOpcode, areOppositeBranches, atCatchBlock, beforeOpcode, getBranchFallThrough, getBranchOffset, getBranchTarget, getClassConstantOperand, getClassDescriptorOperand, getCodeByte, getConstantRefOperand, getDefaultSwitchOffset, getDottedClassConstantOperand, getFieldDescriptorOperand, getIntConstant, getLongConstant, getMaxPC, getMethodDescriptorOperand, getNameConstantOperand, getNextCodeByte, getNextOpcode, getNextPC, getOpcode, getPC, getPrevOpcode, getRefConstantOperand, getRefFieldIsStatic, getRegisterOperand, getSigConstantOperand, getStringConstantOperand, getSwitchLabels, getSwitchOffsets, getXClassOperand, getXFieldOperand, getXMethodOperand, isBranch, isMethodCall, isRegisterLoad, isRegisterStore, isRegisterStore, isReturn, isShift, isSwitch, isWideOpcode, printOpCode, sawBranchTo, sawClass, sawDouble, sawField, sawFloat, sawIMethod, sawInt, sawLong, sawMethod, sawRegister, sawString, visit

Methods inherited from class edu.umd.cs.findbugs.visitclass.AnnotationVisitor

getAnnotationParameterAsEnum, getAnnotationParameterAsString, getAnnotationParameterAsStringArray, visitAnnotation, visitAnnotation, visitParameterAnnotation, visitParameterAnnotation, visitSyntheticParameterAnnotation

Methods inherited from class edu.umd.cs.findbugs.visitclass.PreorderVisitor

amVisitingMainMethod, asUnsignedByte, doVisitMethod, getClassDescriptor, getClassName, getCode, getConstantPool, getDottedClassName, getDottedFieldSig, getDottedMethodSig, getDottedSuperclassName, getField, getFieldDescriptor, getFieldIsStatic, getFieldName, getFieldSig, getFullyQualifiedFieldName, getFullyQualifiedMethodName, getMethod, getMethodDescriptor, getMethodName, getMethodSig, getMethodVisitOrder, getNumberArguments, getNumberMethodArguments, getPackageName, getSizeOfSurroundingTryBlock, getSizeOfSurroundingTryBlock, getSourceFile, getStringFromIndex, getSuperclassName, getSurroundingCaughtExceptions, getSurroundingCaughtExceptions, getSurroundingCaughtExceptionTypes, getSurroundingTryBlock, getSurroundingTryBlock, getThisClass, getXClass, getXField, getXMethod, hasInterestingClass, hasInterestingMethod, isVisitMethodsInCallOrder, setupVisitorForClass, setVisitMethodsInCallOrder, shouldVisit, toString, visitAfter, visitAnnotationDefault, visitAnnotationEntry, visitBootstrapMethods, visitConstantInvokeDynamic, visitConstantMethodHandle, visitConstantMethodType, visitConstantModule, visitConstantPackage, visitConstantPool, visitEnclosingMethod, visitingField, visitingMethod, visitInnerClasses, visitJavaClass, visitLineNumberTable, visitLocalVariableTable, visitMethodParameters, visitParameterAnnotationEntry, visitStackMap, visitStackMapEntry

Methods inherited from class edu.umd.cs.findbugs.visitclass.BetterVisitor

clone, report, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitCodeException, visitConstantClass, visitConstantDouble, visitConstantFieldref, visitConstantFloat, visitConstantInteger, visitConstantInterfaceMethodref, visitConstantLong, visitConstantMethodref, visitConstantNameAndType, visitConstantString, visitConstantUtf8, visitConstantValue, visitDeprecated, visitExceptionTable, visitField, visitInnerClass, visitLineNumber, visitLocalVariable, visitLocalVariableTypeTable, visitSignature, visitSourceFile, visitSynthetic, visitUnknown

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.umd.cs.findbugs.StatelessDetector

clone

Methods inherited from interface org.apache.bcel.classfile.Visitor

visitConstantDynamic, visitMethodParameter, visitModule, visitModuleExports, visitModuleMainClass, visitModuleOpens, visitModulePackages, visitModuleProvides, visitModuleRequires, visitNestHost, visitNestMembers, visitRecord, visitRecordComponent, visitStackMapType

Field Detail

bugReporter

private final BugReporter bugReporter

superclassName

@DottedClassName
private java.lang.String superclassName

state

private UselessSubclassMethod.State state

curParm

private int curParm

curParmOffset

private int curParmOffset

invokePC

private int invokePC

argTypes

private org.apache.bcel.generic.Type[] argTypes

interfaceMethods

private java.util.Set<java.lang.String> interfaceMethods

Constructor Detail

UselessSubclassMethod

public UselessSubclassMethod(BugReporter bugReporter)

Method Detail

visitClassContext

public void visitClassContext(ClassContext classContext)

Description copied from interface: Detector

Visit the ClassContext for a class which should be analyzed for instances of bug patterns.

Specified by:

visitClassContext in interface Detector

Overrides:

visitClassContext in class BytecodeScanningDetector

Parameters:

classContext - the ClassContext

visitAfter

public void visitAfter(org.apache.bcel.classfile.JavaClass obj)

Overrides:

visitAfter in class PreorderVisitor

visitMethod

public void visitMethod(org.apache.bcel.classfile.Method obj)

Specified by:

visitMethod in interface org.apache.bcel.classfile.Visitor

Overrides:

visitMethod in class BetterVisitor

visitCode

public void visitCode(org.apache.bcel.classfile.Code obj)

Specified by:

visitCode in interface org.apache.bcel.classfile.Visitor

Overrides:

visitCode in class PreorderVisitor

getPackage

public java.lang.String getPackage(@DottedClassName
                                   java.lang.String classname)

samePackage

public boolean samePackage(@DottedClassName
                           java.lang.String classname1,
                           @DottedClassName
                           java.lang.String classname2)

sawOpcode

public void sawOpcode(int seen)

Overrides:

sawOpcode in class DismantleBytecode

checkParm

private void checkParm(int seen,
                       int fastOpBase,
                       int slowOp,
                       int parmSize)

findSuperclassMethod

private org.apache.bcel.classfile.Method findSuperclassMethod(@DottedClassName
                                                              java.lang.String superclassName,
                                                              org.apache.bcel.classfile.Method subclassMethod)
                                                       throws java.lang.ClassNotFoundException

Throws:

java.lang.ClassNotFoundException

thrownExceptions

java.util.HashSet<java.lang.String> thrownExceptions(org.apache.bcel.classfile.Method m)

differentAttributes

private boolean differentAttributes(org.apache.bcel.classfile.Method m1,
                                    org.apache.bcel.classfile.Method m2)