Package com.mebigfatguy.fbcontrib.detect

Class UseTryWithResources

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
com.mebigfatguy.fbcontrib.detect.UseTryWithResources
All Implemented Interfaces:
edu.umd.cs.findbugs.Detector, edu.umd.cs.findbugs.Priorities, org.apache.bcel.classfile.Visitor
public class UseTryWithResources extends edu.umd.cs.findbugs.BytecodeScanningDetector
looks for try/finally blocks that manage resources, without using try-with-resources

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    (package private) static enum 
    UseTryWithResources.State
     
    (package private) static class 
    UseTryWithResources.TryBlock
     

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private org.apache.bcel.classfile.JavaClass
    autoCloseableClass
     
    private int
    bugPC
     
    private edu.umd.cs.findbugs.BugReporter
    bugReporter
     
    private int
    closePC
     
    private Map<Integer,UseTryWithResources.TryBlock>
    finallyBlocks
     
    private int
    lastGotoPC
     
    private int
    lastNullCheckedReg
     
    private Map<Integer,Integer>
    regStoredPCs
     
    private edu.umd.cs.findbugs.OpcodeStack
    stack
     
    private UseTryWithResources.State
    state
     
    private int
    suppressedPC
     
    private org.apache.bcel.classfile.JavaClass
    throwableClass
     

    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
    UseTryWithResources(edu.umd.cs.findbugs.BugReporter bugReporter)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    private UseTryWithResources.TryBlock
    findEnclosingFinally(int pc)
     
    private boolean
    prescreen(org.apache.bcel.classfile.Code obj)
     
    void
    sawOpcode(int seen)
     
    private void
    sawOpcodeAfterLoad(int seen, int pc)
     
    private void
    sawOpcodeAfterNothing(int seen)
     
    private void
    sawOpcodeAfterNullCheck(int seen)
     
    String
    toString()
     
    void
    visitClassContext(edu.umd.cs.findbugs.ba.ClassContext classContext)
     
    void
    visitCode(org.apache.bcel.classfile.Code 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, visitAfter, 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, visitMethod, visitSignature, visitSourceFile, visitSynthetic, visitUnknown

    Methods inherited from class java.lang.Object

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

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

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

  • Field Details

    • autoCloseableClass

      private org.apache.bcel.classfile.JavaClass autoCloseableClass

    • throwableClass

      private org.apache.bcel.classfile.JavaClass throwableClass

    • bugReporter

      private edu.umd.cs.findbugs.BugReporter bugReporter

    • stack

      private edu.umd.cs.findbugs.OpcodeStack stack

    • finallyBlocks

      private Map<Integer,UseTryWithResources.TryBlock> finallyBlocks

    • regStoredPCs

      private Map<Integer,Integer> regStoredPCs

    • lastGotoPC

      private int lastGotoPC

    • lastNullCheckedReg

      private int lastNullCheckedReg

    • bugPC

      private int bugPC

    • closePC

      private int closePC

    • suppressedPC

      private int suppressedPC

    • state

      private UseTryWithResources.State state

  • Constructor Details

    • UseTryWithResources

      public UseTryWithResources(edu.umd.cs.findbugs.BugReporter bugReporter)

  • Method Details

    • visitClassContext

      public void visitClassContext(edu.umd.cs.findbugs.ba.ClassContext classContext)
      Specified by:
      visitClassContext in interface edu.umd.cs.findbugs.Detector
      Overrides:
      visitClassContext in class edu.umd.cs.findbugs.BytecodeScanningDetector

    • visitCode

      public void visitCode(org.apache.bcel.classfile.Code obj)
      Specified by:
      visitCode in interface org.apache.bcel.classfile.Visitor
      Overrides:
      visitCode in class edu.umd.cs.findbugs.visitclass.PreorderVisitor

    • sawOpcode

      public void sawOpcode(int seen)
      Overrides:
      sawOpcode in class edu.umd.cs.findbugs.visitclass.DismantleBytecode

    • sawOpcodeAfterNothing

      private void sawOpcodeAfterNothing(int seen) throws ClassNotFoundException
      Throws:
      ClassNotFoundException

    • sawOpcodeAfterNullCheck

      private void sawOpcodeAfterNullCheck(int seen)

    • sawOpcodeAfterLoad

      private void sawOpcodeAfterLoad(int seen, int pc) throws ClassNotFoundException
      Throws:
      ClassNotFoundException

    • prescreen

      private boolean prescreen(org.apache.bcel.classfile.Code obj)

    • findEnclosingFinally

      @Nullable private UseTryWithResources.TryBlock findEnclosingFinally(int pc)

    • toString

      public String toString()
      Overrides:
      toString in class edu.umd.cs.findbugs.visitclass.PreorderVisitor