Package edu.umd.cs.findbugs.detect
Class UnnecessaryEnvUsage
- java.lang.Object
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- All Implemented Interfaces:
Detector
,Priorities
,org.apache.bcel.classfile.Visitor
public class UnnecessaryEnvUsage extends OpcodeStackDetector
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Nested Class Summary
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Nested classes/interfaces inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
OpcodeStackDetector.WithCustomJumpInfo
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Field Summary
Fields Modifier and Type Field Description private BugAccumulator
bugAccumulator
private static java.util.Map<java.lang.String,java.lang.String>
envvarPropertyMap
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Fields inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
stack
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Fields inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode
codeBytes, lineNumberTable, M_BR, M_CP, M_INT, M_PAD, M_R, M_UINT
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Fields inherited from interface edu.umd.cs.findbugs.Priorities
EXP_PRIORITY, HIGH_PRIORITY, IGNORE_PRIORITY, LOW_PRIORITY, NORMAL_PRIORITY
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Constructor Summary
Constructors Constructor Description UnnecessaryEnvUsage(BugReporter bugReporter)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
reportBugIfParamIsProblematic()
void
sawOpcode(int seen)
By default, this method will not be called when stack is TOP.void
visit(org.apache.bcel.classfile.Code obj)
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Methods inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
afterOpcode, beforeOpcode, getStack, isUsingCustomUserValue, visitCode
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Methods inherited from class edu.umd.cs.findbugs.BytecodeScanningDetector
getClassContext, report, shouldVisitCode, visitClassContext
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Methods inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode
areOppositeBranches, atCatchBlock, 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
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Methods inherited from class edu.umd.cs.findbugs.visitclass.AnnotationVisitor
getAnnotationParameterAsEnum, getAnnotationParameterAsString, getAnnotationParameterAsStringArray, visitAnnotation, visitAnnotation, visitParameterAnnotation, visitParameterAnnotation, visitSyntheticParameterAnnotation
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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, visitAfter, visitAnnotationDefault, visitAnnotationEntry, visitBootstrapMethods, visitConstantInvokeDynamic, visitConstantMethodHandle, visitConstantMethodType, visitConstantModule, visitConstantPackage, visitConstantPool, visitEnclosingMethod, visitingField, visitingMethod, visitInnerClasses, visitJavaClass, visitLineNumberTable, visitLocalVariableTable, visitMethodParameters, visitParameterAnnotationEntry, visitStackMap, visitStackMapEntry
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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, visitMethod, visitSignature, visitSourceFile, visitSynthetic, visitUnknown
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.bcel.classfile.Visitor
visitConstantDynamic, visitMethodParameter, visitModule, visitModuleExports, visitModuleMainClass, visitModuleOpens, visitModulePackages, visitModuleProvides, visitModuleRequires, visitNestHost, visitNestMembers, visitRecord, visitRecordComponent, visitStackMapType
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Field Detail
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envvarPropertyMap
private static final java.util.Map<java.lang.String,java.lang.String> envvarPropertyMap
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bugAccumulator
private final BugAccumulator bugAccumulator
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Constructor Detail
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UnnecessaryEnvUsage
public UnnecessaryEnvUsage(BugReporter bugReporter)
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Method Detail
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visit
public void visit(org.apache.bcel.classfile.Code obj)
- Overrides:
visit
in classDismantleBytecode
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reportBugIfParamIsProblematic
private void reportBugIfParamIsProblematic()
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sawOpcode
public void sawOpcode(int seen)
Description copied from class:OpcodeStackDetector
By default, this method will not be called when stack is TOP. To change this behavior, override
#beforeOpcode(int)
and change to return true even if stack is TOP.see Using FindBugs for Research to learn lattice and what TOP means.
- Specified by:
sawOpcode
in classOpcodeStackDetector
- See Also:
OpcodeStackDetector.beforeOpcode(int)
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