ResolvedJavaMethod (Graal OpenJDK Project Documentation)

All Superinterfaces:

InvokeTarget, JavaMethod, ModifiersProvider, TrustedInterface

All Known Subinterfaces:

HotSpotResolvedJavaMethod

All Known Implementing Classes:

HotSpotResolvedJavaMethodImpl
```
public interface ResolvedJavaMethod
extends JavaMethod, InvokeTarget, ModifiersProvider
```
Represents a resolved Java method. Methods, like fields and types, are resolved through constant pools.

Field Summary
- Fields inherited from interface jdk.internal.jvmci.meta.ModifiersProvider
  ANNOTATION, BRIDGE, ENUM, MANDATED, SYNTHETIC, VARARGS

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`StackTraceElement`	`asStackTraceElement(int bci)` Returns a stack trace element for this method and a given bytecode index.
`boolean`	`canBeInlined()` Returns `true` if this method is not excluded from inlining and has associated Java bytecodes (@see `hasBytecodes()`).
`boolean`	`canBeStaticallyBound()` Checks whether this method can be statically bound (usually, that means it is final or private or static, but not abstract, or the declaring class is final).
`<T extends Annotation> T`	`getAnnotation(Class<T> annotationClass)` Returns the annotation for the specified type of this method, if such an annotation is present.
`Annotation[]`	`getAnnotations()` Returns all annotations of this method.
`byte[]`	`getCode()` Returns the bytecode of this method, if the method has code.
`int`	`getCodeSize()` Returns the size of the bytecode of this method, if the method has code.
`ConstantPool`	`getConstantPool()` Returns the constant pool of this method.
`ResolvedJavaType`	`getDeclaringClass()` Returns the `ResolvedJavaType` object representing the class or interface that declares this method.
`Constant`	`getEncoding()` Gets the encoding of (that is, a constant representing the value of) this method.
`ExceptionHandler[]`	`getExceptionHandlers()` Returns the list of exception handlers for this method.
`Type[]`	`getGenericParameterTypes()` Returns an array of `Type` objects that represent the formal parameter types, in declaration order, of this method.
`LineNumberTable`	`getLineNumberTable()` Returns the LineNumberTable of this method or null if this method does not have a line numbers table.
`LocalVariableTable`	`getLocalVariableTable()` Returns the local variable table of this method or null if this method does not have a local variable table.
`int`	`getMaxLocals()` Returns the maximum number of locals used in this method's bytecodes.
`int`	`getMaxStackSize()` Returns the maximum number of stack slots used in this method's bytecodes.
`int`	`getModifiers()` Returns the Java Virtual Machine modifiers for this element.
`default <T extends Annotation> T`	`getParameterAnnotation(Class<T> annotationClass, int parameterIndex)` Gets the annotation of a particular type for a formal parameter of this method.
`Annotation[][]`	`getParameterAnnotations()` Returns an array of arrays that represent the annotations on the formal parameters, in declaration order, of this method.
`default <T extends Annotation> T[]`	`getParameterAnnotations(Class<T> annotationClass)` Gets the annotations of a particular type for the formal parameters of this method.
`default ProfilingInfo`	`getProfilingInfo()` Returns an object that provides access to the profiling information recorded for this method.
`ProfilingInfo`	`getProfilingInfo(boolean includeNormal, boolean includeOSR)` Returns an object that provides access to the profiling information recorded for this method.
`SpeculationLog`	`getSpeculationLog()`
`default boolean`	`hasBytecodes()` Checks whether the method has bytecodes associated with it.
`default boolean`	`hasReceiver()` Checks whether the method has a receiver parameter - i.e., whether it is not static.
`JavaConstant`	`invoke(JavaConstant receiver, JavaConstant[] arguments)` Invokes the underlying method represented by this object, on the specified object with the specified parameters.
`default boolean`	`isBridge()` Checks that the method is a bridge method.
`boolean`	`isClassInitializer()` Checks whether this method is a class initializer.
`boolean`	`isConstructor()` Checks whether this method is a constructor.
`boolean`	`isDefault()` Returns `true` if this method is a default method; returns `false` otherwise.
`default boolean`	`isFinal()`
`boolean`	`isInVirtualMethodTable(ResolvedJavaType resolved)` Checks if this method is present in the virtual table for subtypes of the specified type.
`default boolean`	`isJavaLangObjectInit()` Determines if this method is `Object.Object()`.
`static boolean`	`isSignaturePolymorphic(JavaType holder, String name, MetaAccessProvider metaAccess)` Determines if the method identified by its holder and name is a signature polymorphic method.
`default boolean`	`isSynthetic()` Determines if this method is a synthetic method as defined by the Java Language Specification.
`default boolean`	`isVarArgs()` Checks that the method is a varargs method.
`void`	`reprofile()` Invalidates the profiling information and restarts profiling upon the next invocation.
`boolean`	`shouldBeInlined()` Returns `true` if the inlining of this method should be forced.
`default JavaType[]`	`toParameterTypes()`

Methods inherited from interface jdk.internal.jvmci.meta.JavaMethod
format, getName, getSignature

Methods inherited from interface jdk.internal.jvmci.meta.ModifiersProvider
isAbstract, isConcrete, isFinalFlagSet, isInterface, isNative, isPackagePrivate, isPrivate, isProtected, isPublic, isStatic, isStrict, isSynchronized, isTransient, isVolatile, jvmClassModifiers, jvmFieldModifiers, jvmMethodModifiers

- Method Detail
  - getCode
```
byte[] getCode()
```
    Returns the bytecode of this method, if the method has code. The returned byte array does not contain breakpoints or non-Java bytecodes. This may return null if the holder is not linked. The contained constant pool indices may not be the ones found in the original class file but they can be used with the JVMCI API (e.g. methods in ConstantPool).
    
    Returns:
    
    the bytecode of the method, or null if getCodeSize() == 0 or if the code is not ready.
  - getCodeSize
```
int getCodeSize()
```
    Returns the size of the bytecode of this method, if the method has code. This is equivalent to getCode(). length if the method has code.
    
    Returns:
    
    the size of the bytecode in bytes, or 0 if no bytecode is available
  - getDeclaringClass
```
ResolvedJavaType getDeclaringClass()
```
    Returns the ResolvedJavaType object representing the class or interface that declares this method.
    
    Specified by:
    
    getDeclaringClass in interface JavaMethod
  - getMaxLocals
```
int getMaxLocals()
```
    Returns the maximum number of locals used in this method's bytecodes.
  - getMaxStackSize
```
int getMaxStackSize()
```
    Returns the maximum number of stack slots used in this method's bytecodes.
  - getModifiers
```
int getModifiers()
```
    Returns the Java Virtual Machine modifiers for this element. Note that this can differ from standard Java Reflection modifiers. For example at the JVM level, classes ( ResolvedJavaType) can not be private or protected.
    Only the method flags specified in the JVM specification will be included in the returned mask.
    
    Specified by:
    
    getModifiers in interface ModifiersProvider
  - isFinal
```
default boolean isFinal()
```
  - isSynthetic
```
default boolean isSynthetic()
```
    Determines if this method is a synthetic method as defined by the Java Language Specification.
  - isVarArgs
```
default boolean isVarArgs()
```
    Checks that the method is a varargs method.
    
    Returns:
    
    whether the method is a varargs method
  - isBridge
```
default boolean isBridge()
```
    Checks that the method is a bridge method.
    
    Returns:
    
    whether the method is a bridge method
  - isDefault
```
boolean isDefault()
```
    Returns true if this method is a default method; returns false otherwise. A default method is a public non-abstract instance method, that is, a non-static method with a body, declared in an interface type.
    
    Returns:
    
    true if and only if this method is a default method as defined by the Java Language Specification.
  - isClassInitializer
```
boolean isClassInitializer()
```
    Checks whether this method is a class initializer.
    
    Returns:
    
    true if the method is a class initializer
  - isConstructor
```
boolean isConstructor()
```
    Checks whether this method is a constructor.
    
    Returns:
    
    true if the method is a constructor
  - canBeStaticallyBound
```
boolean canBeStaticallyBound()
```
    Checks whether this method can be statically bound (usually, that means it is final or private or static, but not abstract, or the declaring class is final).
    
    Returns:
    
    true if this method can be statically bound
  - getExceptionHandlers
```
ExceptionHandler[] getExceptionHandlers()
```
    Returns the list of exception handlers for this method.
  - asStackTraceElement
```
StackTraceElement asStackTraceElement(int bci)
```
    Returns a stack trace element for this method and a given bytecode index.
  - getProfilingInfo
```
default ProfilingInfo getProfilingInfo()
```
    Returns an object that provides access to the profiling information recorded for this method.
  - getProfilingInfo
```
ProfilingInfo getProfilingInfo(boolean includeNormal,
                               boolean includeOSR)
```
    Returns an object that provides access to the profiling information recorded for this method.
    
    Parameters:
    
    includeNormal - if true, deoptimization counts will include deoptimization that happened during execution of standard non-osr methods.
    
    includeOSR - if true, deoptimization counts will include deoptimization that happened during execution of on-stack-replacement methods.
  - reprofile
```
void reprofile()
```
    Invalidates the profiling information and restarts profiling upon the next invocation.
  - getConstantPool
```
ConstantPool getConstantPool()
```
    Returns the constant pool of this method.
  - getAnnotations
```
Annotation[] getAnnotations()
```
    Returns all annotations of this method. If no annotations are present, an array of length 0 is returned.
  - getAnnotation
```
<T extends Annotation> T getAnnotation(Class<T> annotationClass)
```
    Returns the annotation for the specified type of this method, if such an annotation is present.
    
    Parameters:
    
    annotationClass - the Class object corresponding to the annotation type
    
    Returns:
    
    this element's annotation for the specified annotation type if present on this method, else null
  - getParameterAnnotations
```
Annotation[][] getParameterAnnotations()
```
    Returns an array of arrays that represent the annotations on the formal parameters, in declaration order, of this method.
    
    See Also:
    
    Method.getParameterAnnotations()
  - getGenericParameterTypes
```
Type[] getGenericParameterTypes()
```
    Returns an array of Type objects that represent the formal parameter types, in declaration order, of this method.
    
    See Also:
    
    Method.getGenericParameterTypes()
  - canBeInlined
```
boolean canBeInlined()
```
    Returns true if this method is not excluded from inlining and has associated Java bytecodes (@see hasBytecodes()).
  - shouldBeInlined
```
boolean shouldBeInlined()
```
    Returns true if the inlining of this method should be forced.
  - getLineNumberTable
```
LineNumberTable getLineNumberTable()
```
    Returns the LineNumberTable of this method or null if this method does not have a line numbers table.
  - getLocalVariableTable
```
LocalVariableTable getLocalVariableTable()
```
    Returns the local variable table of this method or null if this method does not have a local variable table.
  - invoke
```
JavaConstant invoke(JavaConstant receiver,
                    JavaConstant[] arguments)
```
    Invokes the underlying method represented by this object, on the specified object with the specified parameters. This method is similar to a reflective method invocation by Method.invoke(java.lang.Object, java.lang.Object...).
    
    Parameters:
    
    receiver - The receiver for the invocation, or null if it is a static method.
    
    arguments - The arguments for the invocation.
    
    Returns:
    
    The value returned by the method invocation, or null if the return type is void.
  - getEncoding
```
Constant getEncoding()
```
    Gets the encoding of (that is, a constant representing the value of) this method.
    
    Returns:
    
    a constant representing a reference to this method
  - isInVirtualMethodTable
```
boolean isInVirtualMethodTable(ResolvedJavaType resolved)
```
    Checks if this method is present in the virtual table for subtypes of the specified type.
    
    Returns:
    
    true is this method is present in the virtual table for subtypes of this type.
  - getParameterAnnotation
```
default <T extends Annotation> T getParameterAnnotation(Class<T> annotationClass,
                                                        int parameterIndex)
```
    Gets the annotation of a particular type for a formal parameter of this method.
    
    Parameters:
    
    annotationClass - the Class object corresponding to the annotation type
    
    parameterIndex - the index of a formal parameter of method
    
    Returns:
    
    the annotation of type annotationClass for the formal parameter present, else null
    
    Throws:
    
    IndexOutOfBoundsException - if parameterIndex does not denote a formal parameter
  - toParameterTypes
```
default JavaType[] toParameterTypes()
```
  - getParameterAnnotations
```
default <T extends Annotation> T[] getParameterAnnotations(Class<T> annotationClass)
```
    Gets the annotations of a particular type for the formal parameters of this method.
    
    Parameters:
    
    annotationClass - the Class object corresponding to the annotation type
    
    Returns:
    
    the annotation of type annotationClass (if any) for each formal parameter present
  - hasBytecodes
```
default boolean hasBytecodes()
```
    Checks whether the method has bytecodes associated with it. Methods without bytecodes are either abstract or native methods.
    
    Returns:
    
    whether the definition of this method is Java bytecodes
  - hasReceiver
```
default boolean hasReceiver()
```
    Checks whether the method has a receiver parameter - i.e., whether it is not static.
    
    Returns:
    
    whether the method has a receiver parameter
  - isJavaLangObjectInit
```
default boolean isJavaLangObjectInit()
```
    Determines if this method is Object.Object().
  - getSpeculationLog
```
SpeculationLog getSpeculationLog()
```
  - isSignaturePolymorphic
```
static boolean isSignaturePolymorphic(JavaType holder,
                                      String name,
                                      MetaAccessProvider metaAccess)
```
    Determines if the method identified by its holder and name is a signature polymorphic method.

Interface ResolvedJavaMethod

Field Summary

Fields inherited from interface jdk.internal.jvmci.meta.ModifiersProvider

Method Summary

Methods inherited from interface jdk.internal.jvmci.meta.JavaMethod

Methods inherited from interface jdk.internal.jvmci.meta.ModifiersProvider

Method Detail

getCode

getCodeSize

getDeclaringClass

getMaxLocals

getMaxStackSize

getModifiers

isFinal

isSynthetic

isVarArgs

isBridge

isDefault

isClassInitializer

isConstructor

canBeStaticallyBound

getExceptionHandlers

asStackTraceElement

getProfilingInfo

getProfilingInfo

reprofile

getConstantPool

getAnnotations

getAnnotation

getParameterAnnotations

getGenericParameterTypes

canBeInlined

shouldBeInlined

getLineNumberTable

getLocalVariableTable

invoke

getEncoding

isInVirtualMethodTable

getParameterAnnotation

toParameterTypes

getParameterAnnotations

hasBytecodes

hasReceiver

isJavaLangObjectInit

getSpeculationLog

isSignaturePolymorphic