edu.umd.cs.findbugs.ba

Class Hierarchy

java.lang.Object

edu.umd.cs.findbugs.ba.Hierarchy

public class Hierarchy
extends java.lang.Object

Facade for class hierarchy queries. These typically access the class hierarchy using the Repository class. Callers should generally expect to handle ClassNotFoundException for when referenced classes can't be found.

Author:

David Hovemeyer

Field Summary

Fields

Modifier and Type	Field and Description
static JavaClassAndMethodChooser	ANY_METHOD JavaClassAndMethodChooser which accepts any method.
static JavaClassAndMethodChooser	CONCRETE_METHOD JavaClassAndMethodChooser which accepts only concrete (not abstract or native) methods.
protected static boolean	DEBUG_METHOD_LOOKUP
static ClassDescriptor	ERROR
static org.apache.bcel.generic.ObjectType	ERROR_TYPE Type of java.lang.Error.
static ClassDescriptor	EXCEPTION
static org.apache.bcel.generic.ObjectType	EXCEPTION_TYPE Type of java.lang.Exception.
static JavaClassAndMethodChooser	INSTANCE_METHOD JavaClassAndMethodChooser which accepts only instance methods.
static ClassDescriptor	RUNTIME_EXCEPTION
static org.apache.bcel.generic.ObjectType	RUNTIME_EXCEPTION_TYPE Type of java.lang.RuntimeException.
static JavaClassAndMethodChooser	STATIC_METHOD JavaClassAndMethodChooser which accepts only static methods.

Constructor Summary

Constructors

Constructor and Description
Hierarchy()

Method Summary

Modifier and Type	Method and Description
static boolean	accessFlagsAreConcrete(int accessFlags)
static JavaClassAndMethod	findConcreteMethod(org.apache.bcel.classfile.JavaClass javaClass, java.lang.String methodName, java.lang.String methodSig) Deprecated.
static org.apache.bcel.generic.ObjectType[]	findDeclaredExceptions(org.apache.bcel.generic.InvokeInstruction inv, org.apache.bcel.generic.ConstantPoolGen cpg) Deprecated. Use Hierarchy2.findDeclaredExceptions(InvokeInstruction,ConstantPoolGen) instead
static JavaClassAndMethod	findExactMethod(org.apache.bcel.generic.InvokeInstruction inv, org.apache.bcel.generic.ConstantPoolGen cpg) Look up the method referenced by given InvokeInstruction.
static JavaClassAndMethod	findExactMethod(org.apache.bcel.generic.InvokeInstruction inv, org.apache.bcel.generic.ConstantPoolGen cpg, JavaClassAndMethodChooser chooser) Look up the method referenced by given InvokeInstruction.
static org.apache.bcel.classfile.Field	findField(java.lang.String className, java.lang.String fieldName) Find a field with given name defined in given class.
static JavaClassAndMethod	findInvocationLeastUpperBound(org.apache.bcel.generic.InvokeInstruction inv, org.apache.bcel.generic.ConstantPoolGen cpg) Find the least upper bound method in the class hierarchy which could be called by the given InvokeInstruction.
static JavaClassAndMethod	findInvocationLeastUpperBound(org.apache.bcel.generic.InvokeInstruction inv, org.apache.bcel.generic.ConstantPoolGen cpg, JavaClassAndMethodChooser methodChooser)
static JavaClassAndMethod	findInvocationLeastUpperBound(org.apache.bcel.classfile.JavaClass jClass, java.lang.String methodName, java.lang.String methodSig, JavaClassAndMethodChooser methodChooser, boolean invokeInterface)
static XMethod	findMethod(ClassDescriptor classDesc, java.lang.String methodName, java.lang.String methodSig, boolean isStatic) Find a method in given class.
static JavaClassAndMethod	findMethod(org.apache.bcel.classfile.JavaClass[] classList, java.lang.String methodName, java.lang.String methodSig) Deprecated.
static JavaClassAndMethod	findMethod(org.apache.bcel.classfile.JavaClass[] classList, java.lang.String methodName, java.lang.String methodSig, JavaClassAndMethodChooser chooser) Find a method in given list of classes, searching the classes in order.
static JavaClassAndMethod	findMethod(org.apache.bcel.classfile.JavaClass javaClass, java.lang.String methodName, java.lang.String methodSig) Find a method in given class.
static JavaClassAndMethod	findMethod(org.apache.bcel.classfile.JavaClass javaClass, java.lang.String methodName, java.lang.String methodSig, JavaClassAndMethodChooser chooser)
static XField	findXField(org.apache.bcel.generic.FieldInstruction fins, org.apache.bcel.generic.ConstantPoolGen cpg) Look up the field referenced by given FieldInstruction, returning it as an XField object.
static XField	findXField(java.lang.String className, java.lang.String fieldName, java.lang.String fieldSig, boolean isStatic) Look up a field with given name and signature in given class, returning it as an XField object.
static XMethod	findXMethod(org.apache.bcel.classfile.JavaClass[] classList, java.lang.String methodName, java.lang.String methodSig) Deprecated.
static XMethod	findXMethod(org.apache.bcel.classfile.JavaClass[] classList, java.lang.String methodName, java.lang.String methodSig, JavaClassAndMethodChooser chooser) Deprecated.
static XMethod	findXMethod(org.apache.bcel.classfile.JavaClass javaClass, java.lang.String methodName, java.lang.String methodSig, JavaClassAndMethodChooser chooser) Deprecated.
static InnerClassAccess	getInnerClassAccess(org.apache.bcel.generic.INVOKESTATIC inv, org.apache.bcel.generic.ConstantPoolGen cpg) Get the InnerClassAccess for access method called by given INVOKESTATIC.
static boolean	isConcrete(XMethod xmethod) Deprecated.
static boolean	isInnerClassAccess(org.apache.bcel.generic.INVOKESTATIC inv, org.apache.bcel.generic.ConstantPoolGen cpg) Determine whether the given INVOKESTATIC instruction is an inner-class field accessor method.
static boolean	isMonitorNotify(org.apache.bcel.generic.Instruction ins, org.apache.bcel.generic.ConstantPoolGen cpg) Determine if given Instruction is a monitor wait.
static boolean	isMonitorNotify(java.lang.String methodName, java.lang.String methodSig) Determine if method whose name and signature is specified is a monitor notify operation.
static boolean	isMonitorWait(org.apache.bcel.generic.Instruction ins, org.apache.bcel.generic.ConstantPoolGen cpg) Determine if given Instruction is a monitor wait.
static boolean	isMonitorWait(java.lang.String methodName, java.lang.String methodSig) Determine if method whose name and signature is specified is a monitor wait operation.
static boolean	isSubtype(org.apache.bcel.generic.ReferenceType t, org.apache.bcel.generic.ReferenceType possibleSupertype) Determine if one reference type is a subtype of another.
static boolean	isSubtype(java.lang.String clsName, java.lang.String possibleSupertypeClassName) Determine whether one class (or reference type) is a subtype of another.
static boolean	isUncheckedException(org.apache.bcel.generic.ObjectType type) Determine if the given ObjectType refers to an unchecked exception (RuntimeException or Error).
static boolean	isUniversalExceptionHandler(org.apache.bcel.generic.ObjectType catchType) Determine if the given ObjectType reference represents a universal exception handler.
static java.util.Set<JavaClassAndMethod>	resolveMethodCallTargets(org.apache.bcel.generic.InvokeInstruction invokeInstruction, TypeFrame typeFrame, org.apache.bcel.generic.ConstantPoolGen cpg) Resolve possible method call targets.
static java.util.Set<JavaClassAndMethod>	resolveMethodCallTargets(org.apache.bcel.generic.ReferenceType receiverType, org.apache.bcel.generic.InvokeInstruction invokeInstruction, org.apache.bcel.generic.ConstantPoolGen cpg) Resolve possible instance method call targets.
static java.util.Set<JavaClassAndMethod>	resolveMethodCallTargets(org.apache.bcel.generic.ReferenceType receiverType, org.apache.bcel.generic.InvokeInstruction invokeInstruction, org.apache.bcel.generic.ConstantPoolGen cpg, boolean receiverTypeIsExact) Resolve possible instance method call targets.
static JavaClassAndMethod	visitSuperClassMethods(JavaClassAndMethod method, JavaClassAndMethodChooser chooser) Visit all superclass methods which the given method overrides.
static JavaClassAndMethod	visitSuperInterfaceMethods(JavaClassAndMethod method, JavaClassAndMethodChooser chooser) Visit all superinterface methods which the given method implements.

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_METHOD_LOOKUP

protected static final boolean DEBUG_METHOD_LOOKUP

RUNTIME_EXCEPTION

public static final ClassDescriptor RUNTIME_EXCEPTION

EXCEPTION

public static final ClassDescriptor EXCEPTION

ERROR

public static final ClassDescriptor ERROR

EXCEPTION_TYPE

public static final org.apache.bcel.generic.ObjectType EXCEPTION_TYPE

Type of java.lang.Exception.

ERROR_TYPE

public static final org.apache.bcel.generic.ObjectType ERROR_TYPE

Type of java.lang.Error.

RUNTIME_EXCEPTION_TYPE

public static final org.apache.bcel.generic.ObjectType RUNTIME_EXCEPTION_TYPE

Type of java.lang.RuntimeException.

ANY_METHOD

public static final JavaClassAndMethodChooser ANY_METHOD

JavaClassAndMethodChooser which accepts any method.

CONCRETE_METHOD

public static final JavaClassAndMethodChooser CONCRETE_METHOD

JavaClassAndMethodChooser which accepts only concrete (not abstract or native) methods.

STATIC_METHOD

public static final JavaClassAndMethodChooser STATIC_METHOD

JavaClassAndMethodChooser which accepts only static methods.

INSTANCE_METHOD

public static final JavaClassAndMethodChooser INSTANCE_METHOD

JavaClassAndMethodChooser which accepts only instance methods.

Constructor Detail

Hierarchy

public Hierarchy()

Method Detail

isSubtype

public static boolean isSubtype(@DottedClassName
                                java.lang.String clsName,
                                @DottedClassName
                                java.lang.String possibleSupertypeClassName)
                         throws java.lang.ClassNotFoundException

Determine whether one class (or reference type) is a subtype of another.

Parameters:

clsName - the name of the class or reference type

possibleSupertypeClassName - the name of the possible superclass

Returns:

true if clsName is a subtype of possibleSupertypeClassName, false if not

Throws:

java.lang.ClassNotFoundException

isSubtype

public static boolean isSubtype(org.apache.bcel.generic.ReferenceType t,
                                org.apache.bcel.generic.ReferenceType possibleSupertype)
                         throws java.lang.ClassNotFoundException

Determine if one reference type is a subtype of another.

Parameters:

t - a reference type

possibleSupertype - the possible supertype

Returns:

true if t is a subtype of possibleSupertype, false if not

Throws:

java.lang.ClassNotFoundException

isUniversalExceptionHandler

public static boolean isUniversalExceptionHandler(org.apache.bcel.generic.ObjectType catchType)

Determine if the given ObjectType reference represents a universal exception handler. That is, one that will catch any kind of exception.

Parameters:

catchType - the ObjectType of the exception handler

Returns:

true if catchType is null, or if catchType is java.lang.Throwable

isUncheckedException

public static boolean isUncheckedException(org.apache.bcel.generic.ObjectType type)
                                    throws java.lang.ClassNotFoundException

Determine if the given ObjectType refers to an unchecked exception (RuntimeException or Error).

Throws:

java.lang.ClassNotFoundException

isMonitorWait

public static boolean isMonitorWait(java.lang.String methodName,
                                    java.lang.String methodSig)

Determine if method whose name and signature is specified is a monitor wait operation.

Parameters:

methodName - name of the method

methodSig - signature of the method

Returns:

true if the method is a monitor wait, false if not

isMonitorWait

public static boolean isMonitorWait(org.apache.bcel.generic.Instruction ins,
                                    org.apache.bcel.generic.ConstantPoolGen cpg)

Determine if given Instruction is a monitor wait.

Parameters:

ins - the Instruction

cpg - the ConstantPoolGen for the Instruction

Returns:

true if the instruction is a monitor wait, false if not

isMonitorNotify

public static boolean isMonitorNotify(java.lang.String methodName,
                                      java.lang.String methodSig)

Determine if method whose name and signature is specified is a monitor notify operation.

Parameters:

methodName - name of the method

methodSig - signature of the method

Returns:

true if the method is a monitor notify, false if not

isMonitorNotify

public static boolean isMonitorNotify(org.apache.bcel.generic.Instruction ins,
                                      org.apache.bcel.generic.ConstantPoolGen cpg)

Determine if given Instruction is a monitor wait.

Parameters:

ins - the Instruction

cpg - the ConstantPoolGen for the Instruction

Returns:

true if the instruction is a monitor wait, false if not

findExactMethod

public static JavaClassAndMethod findExactMethod(org.apache.bcel.generic.InvokeInstruction inv,
                                                 org.apache.bcel.generic.ConstantPoolGen cpg)
                                          throws java.lang.ClassNotFoundException

Look up the method referenced by given InvokeInstruction. This method does not look for implementations in super or subclasses according to the virtual dispatch rules.

Parameters:

inv - the InvokeInstruction

cpg - the ConstantPoolGen used by the class the InvokeInstruction belongs to

Returns:

the JavaClassAndMethod, or null if no such method is defined in the class

Throws:

java.lang.ClassNotFoundException

findExactMethod

public static JavaClassAndMethod findExactMethod(org.apache.bcel.generic.InvokeInstruction inv,
                                                 org.apache.bcel.generic.ConstantPoolGen cpg,
                                                 JavaClassAndMethodChooser chooser)
                                          throws java.lang.ClassNotFoundException

Look up the method referenced by given InvokeInstruction. This method does not look for implementations in super or subclasses according to the virtual dispatch rules.

Parameters:

inv - the InvokeInstruction

cpg - the ConstantPoolGen used by the class the InvokeInstruction belongs to

chooser - JavaClassAndMethodChooser to use to pick the method from among the candidates

Returns:

the JavaClassAndMethod, or null if no such method is defined in the class

Throws:

java.lang.ClassNotFoundException

visitSuperClassMethods

public static JavaClassAndMethod visitSuperClassMethods(JavaClassAndMethod method,
                                                        JavaClassAndMethodChooser chooser)
                                                 throws java.lang.ClassNotFoundException

Visit all superclass methods which the given method overrides.

Parameters:

method - the method

chooser - chooser which visits each superclass method

Returns:

the chosen method, or null if no method is chosen

Throws:

java.lang.ClassNotFoundException

visitSuperInterfaceMethods

public static JavaClassAndMethod visitSuperInterfaceMethods(JavaClassAndMethod method,
                                                            JavaClassAndMethodChooser chooser)
                                                     throws java.lang.ClassNotFoundException

Visit all superinterface methods which the given method implements.

Parameters:

method - the method

chooser - chooser which visits each superinterface method

Returns:

the chosen method, or null if no method is chosen

Throws:

java.lang.ClassNotFoundException

findInvocationLeastUpperBound

@CheckForNull
public static JavaClassAndMethod findInvocationLeastUpperBound(org.apache.bcel.generic.InvokeInstruction inv,
                                                                             org.apache.bcel.generic.ConstantPoolGen cpg)
                                                                      throws java.lang.ClassNotFoundException

Find the least upper bound method in the class hierarchy which could be called by the given InvokeInstruction. One reason this method is useful is that it indicates which declared exceptions are thrown by the called methods.

• For invokespecial, this is simply an exact lookup.
• For invokestatic and invokevirtual, the named class is searched, followed by superclasses up to the root of the object hierarchy (java.lang.Object). Yes, invokestatic really is declared to check superclasses. See VMSpec, 2nd ed, sec. 5.4.3.3.
• For invokeinterface, the named class is searched, followed by all interfaces transitively declared by the class. (Question: is the order important here? Maybe the VM spec requires that the actual interface desired is given, so the extended lookup will not be required. Should check.)

Parameters:

inv - the InvokeInstruction

cpg - the ConstantPoolGen used by the class the InvokeInstruction belongs to

Returns:

the JavaClassAndMethod, or null if no matching method can be found

Throws:

java.lang.ClassNotFoundException

findInvocationLeastUpperBound

@CheckForNull
public static JavaClassAndMethod findInvocationLeastUpperBound(org.apache.bcel.generic.InvokeInstruction inv,
                                                                             org.apache.bcel.generic.ConstantPoolGen cpg,
                                                                             JavaClassAndMethodChooser methodChooser)
                                                                      throws java.lang.ClassNotFoundException

Throws:

java.lang.ClassNotFoundException

findInvocationLeastUpperBound

@CheckForNull
public static JavaClassAndMethod findInvocationLeastUpperBound(org.apache.bcel.classfile.JavaClass jClass,
                                                                             java.lang.String methodName,
                                                                             java.lang.String methodSig,
                                                                             JavaClassAndMethodChooser methodChooser,
                                                                             boolean invokeInterface)
                                                                      throws java.lang.ClassNotFoundException

Throws:

java.lang.ClassNotFoundException

findDeclaredExceptions

@Deprecated
public static org.apache.bcel.generic.ObjectType[] findDeclaredExceptions(org.apache.bcel.generic.InvokeInstruction inv,
                                                                                      org.apache.bcel.generic.ConstantPoolGen cpg)

Deprecated. Use Hierarchy2.findDeclaredExceptions(InvokeInstruction,ConstantPoolGen) instead

Find the declared exceptions for the method called by given instruction.

Parameters:

inv - the InvokeInstruction

cpg - the ConstantPoolGen used by the class the InvokeInstruction belongs to

Returns:

array of ObjectTypes of thrown exceptions, or null if we can't find the list of declared exceptions

findMethod

@CheckForNull
public static JavaClassAndMethod findMethod(org.apache.bcel.classfile.JavaClass javaClass,
                                                          java.lang.String methodName,
                                                          java.lang.String methodSig)

Find a method in given class.

Parameters:

javaClass - the class

methodName - the name of the method

methodSig - the signature of the method

Returns:

the JavaClassAndMethod, or null if no such method exists in the class

findMethod

@CheckForNull
public static JavaClassAndMethod findMethod(org.apache.bcel.classfile.JavaClass javaClass,
                                                          java.lang.String methodName,
                                                          java.lang.String methodSig,
                                                          JavaClassAndMethodChooser chooser)

findMethod

@CheckForNull
public static XMethod findMethod(ClassDescriptor classDesc,
                                               java.lang.String methodName,
                                               java.lang.String methodSig,
                                               boolean isStatic)

Find a method in given class.

Parameters:

classDesc - the class descriptor

methodName - the name of the method

methodSig - the signature of the method

isStatic - are we looking for a static method?

Returns:

the JavaClassAndMethod, or null if no such method exists in the class

findConcreteMethod

@Deprecated
 @CheckForNull
public static JavaClassAndMethod findConcreteMethod(org.apache.bcel.classfile.JavaClass javaClass,
                                                                               java.lang.String methodName,
                                                                               java.lang.String methodSig)

Deprecated.

Find a method in given class.

Parameters:

javaClass - the class

methodName - the name of the method

methodSig - the signature of the method

Returns:

the JavaClassAndMethod, or null if no such method exists in the class

findXMethod

@Deprecated
 @CheckForNull
public static XMethod findXMethod(org.apache.bcel.classfile.JavaClass javaClass,
                                                             java.lang.String methodName,
                                                             java.lang.String methodSig,
                                                             JavaClassAndMethodChooser chooser)

Deprecated.

Find a method in given class.

Parameters:

javaClass - the class

methodName - the name of the method

methodSig - the signature of the method

chooser - the JavaClassAndMethodChooser to use to screen possible candidates

Returns:

the XMethod, or null if no such method exists in the class

accessFlagsAreConcrete

public static boolean accessFlagsAreConcrete(int accessFlags)

findMethod

@Deprecated
public static JavaClassAndMethod findMethod(org.apache.bcel.classfile.JavaClass[] classList,
                                                        java.lang.String methodName,
                                                        java.lang.String methodSig)

Deprecated.

Find a method in given list of classes, searching the classes in order.

Parameters:

classList - list of classes in which to search

methodName - the name of the method

methodSig - the signature of the method

Returns:

the JavaClassAndMethod, or null if no such method exists in the class

findMethod

public static JavaClassAndMethod findMethod(org.apache.bcel.classfile.JavaClass[] classList,
                                            java.lang.String methodName,
                                            java.lang.String methodSig,
                                            JavaClassAndMethodChooser chooser)

Find a method in given list of classes, searching the classes in order.

Parameters:

classList - list of classes in which to search

methodName - the name of the method

methodSig - the signature of the method

chooser - JavaClassAndMethodChooser to select which methods are considered; it must return true for a method to be returned

Returns:

the JavaClassAndMethod, or null if no such method exists in the class

findXMethod

@Deprecated
public static XMethod findXMethod(org.apache.bcel.classfile.JavaClass[] classList,
                                              java.lang.String methodName,
                                              java.lang.String methodSig)

Deprecated.

Find XMethod for method in given list of classes, searching the classes in order.

Parameters:

classList - list of classes in which to search

methodName - the name of the method

methodSig - the signature of the method

Returns:

the XMethod, or null if no such method exists in the class

findXMethod

@Deprecated
public static XMethod findXMethod(org.apache.bcel.classfile.JavaClass[] classList,
                                              java.lang.String methodName,
                                              java.lang.String methodSig,
                                              JavaClassAndMethodChooser chooser)

Deprecated.

Find XMethod for method in given list of classes, searching the classes in order.

Parameters:

classList - list of classes in which to search

methodName - the name of the method

methodSig - the signature of the method

chooser - JavaClassAndMethodChooser to select which methods are considered; it must return true for a method to be returned

Returns:

the XMethod, or null if no such method exists in the class

resolveMethodCallTargets

public static java.util.Set<JavaClassAndMethod> resolveMethodCallTargets(org.apache.bcel.generic.InvokeInstruction invokeInstruction,
                                                                         TypeFrame typeFrame,
                                                                         org.apache.bcel.generic.ConstantPoolGen cpg)
                                                                  throws DataflowAnalysisException,
                                                                         java.lang.ClassNotFoundException

Resolve possible method call targets. This works for both static and instance method calls.

Parameters:

invokeInstruction - the InvokeInstruction

typeFrame - the TypeFrame containing the types of stack values

cpg - the ConstantPoolGen

Returns:

Set of methods which might be called

Throws:

DataflowAnalysisException

java.lang.ClassNotFoundException

resolveMethodCallTargets

public static java.util.Set<JavaClassAndMethod> resolveMethodCallTargets(org.apache.bcel.generic.ReferenceType receiverType,
                                                                         org.apache.bcel.generic.InvokeInstruction invokeInstruction,
                                                                         org.apache.bcel.generic.ConstantPoolGen cpg)
                                                                  throws java.lang.ClassNotFoundException

Resolve possible instance method call targets. Assumes that invokevirtual and invokeinterface methods may call any subtype of the receiver class.

Parameters:

receiverType - type of the receiver object

invokeInstruction - the InvokeInstruction

cpg - the ConstantPoolGen

Returns:

Set of methods which might be called

Throws:

java.lang.ClassNotFoundException

resolveMethodCallTargets

public static java.util.Set<JavaClassAndMethod> resolveMethodCallTargets(org.apache.bcel.generic.ReferenceType receiverType,
                                                                         org.apache.bcel.generic.InvokeInstruction invokeInstruction,
                                                                         org.apache.bcel.generic.ConstantPoolGen cpg,
                                                                         boolean receiverTypeIsExact)
                                                                  throws java.lang.ClassNotFoundException

Resolve possible instance method call targets.

Parameters:

receiverType - type of the receiver object

invokeInstruction - the InvokeInstruction

cpg - the ConstantPoolGen

receiverTypeIsExact - if true, the receiver type is known exactly, which should allow a precise result

Returns:

Set of methods which might be called

Throws:

java.lang.ClassNotFoundException

isConcrete

@Deprecated
public static boolean isConcrete(XMethod xmethod)

Deprecated.

Return whether or not the given method is concrete.

Parameters:

xmethod - the method

Returns:

true if the method is concrete, false otherwise

findField

public static org.apache.bcel.classfile.Field findField(java.lang.String className,
                                                        java.lang.String fieldName)
                                                 throws java.lang.ClassNotFoundException

Find a field with given name defined in given class.

Parameters:

className - the name of the class

fieldName - the name of the field

Returns:

the Field, or null if no such field could be found

Throws:

java.lang.ClassNotFoundException

findXField

public static XField findXField(java.lang.String className,
                                java.lang.String fieldName,
                                java.lang.String fieldSig,
                                boolean isStatic)

Look up a field with given name and signature in given class, returning it as an XField object. If a field can't be found in the immediate class, its superclass is search, and so forth.

Parameters:

className - name of the class through which the field is referenced

fieldName - name of the field

fieldSig - signature of the field

isStatic - true if field is static, false otherwise

Returns:

an XField object representing the field, or null if no such field could be found

findXField

@CheckForNull
public static XField findXField(org.apache.bcel.generic.FieldInstruction fins,
                                              @Nonnull
                                              org.apache.bcel.generic.ConstantPoolGen cpg)

Look up the field referenced by given FieldInstruction, returning it as an XField object.

Parameters:

fins - the FieldInstruction

cpg - the ConstantPoolGen used by the class containing the instruction

Returns:

an XField object representing the field, or null if no such field could be found

isInnerClassAccess

public static boolean isInnerClassAccess(org.apache.bcel.generic.INVOKESTATIC inv,
                                         org.apache.bcel.generic.ConstantPoolGen cpg)

Determine whether the given INVOKESTATIC instruction is an inner-class field accessor method.

Parameters:

inv - the INVOKESTATIC instruction

cpg - the ConstantPoolGen for the method

Returns:

true if the instruction is an inner-class field accessor, false if not

getInnerClassAccess

public static InnerClassAccess getInnerClassAccess(org.apache.bcel.generic.INVOKESTATIC inv,
                                                   org.apache.bcel.generic.ConstantPoolGen cpg)
                                            throws java.lang.ClassNotFoundException

Get the InnerClassAccess for access method called by given INVOKESTATIC.

Parameters:

inv - the INVOKESTATIC instruction

cpg - the ConstantPoolGen for the method

Returns:

the InnerClassAccess, or null if the instruction is not an inner-class access

Throws:

java.lang.ClassNotFoundException