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java.base / java.lang
Interface StackWalker.StackFrame
Enclosing class:
StackWalker
public static interface StackWalker.StackFrame
A StackFrame object represents a method invocation returned by StackWalker.

The getDeclaringClass() method may be unsupported as determined by the stack walking options of a stack walker.

Since:
9
Method Summary
int
getByteCodeIndex()
Returns the index to the code array of the Code attribute containing the execution point represented by this stack frame.
String
getClassName()
Gets the binary name of the declaring class of the method represented by this stack frame.
Class<?>
getDeclaringClass()
Gets the declaring Class for the method represented by this stack frame.
default String
getDescriptor()
Returns the descriptor of the method represented by this stack frame as defined by The Java Virtual Machine Specification.
String
getFileName()
Returns the name of the source file containing the execution point represented by this stack frame.
int
getLineNumber()
Returns the line number of the source line containing the execution point represented by this stack frame.
String
getMethodName()
Gets the name of the method represented by this stack frame.
default MethodType
getMethodType()
Returns the MethodType representing the parameter types and the return type for the method represented by this stack frame.
boolean
isNativeMethod()
Returns true if the method containing the execution point represented by this stack frame is a native method.
StackTraceElement
toStackTraceElement()
Gets a StackTraceElement for this stack frame.
Method Detail
getClassName
String getClassName
()
Gets the binary name of the declaring class of the method represented by this stack frame.
Returns:
the binary name of the declaring class of the method represented by this stack frame
getMethodName
String getMethodName
()
Gets the name of the method represented by this stack frame.
Returns:
the name of the method represented by this stack frame
getDeclaringClass
Class<?> getDeclaringClass
()
Gets the declaring Class for the method represented by this stack frame.
Returns:
the declaring Class of the method represented by this stack frame
Throws:
UnsupportedOperationException - if this StackWalker is not configured with Option.RETAIN_CLASS_REFERENCE.
getMethodType
default MethodType getMethodType
()
Returns the MethodType representing the parameter types and the return type for the method represented by this stack frame.
Implementation Requirements:
The default implementation throws UnsupportedOperationException.
Returns:
the MethodType for this stack frame
Throws:
UnsupportedOperationException - if this StackWalker is not configured with Option.RETAIN_CLASS_REFERENCE.
Since:
10
getDescriptor
default String getDescriptor
()
Returns the descriptor of the method represented by this stack frame as defined by The Java Virtual Machine Specification.
Implementation Requirements:
The default implementation throws UnsupportedOperationException.
Returns:
the descriptor of the method represented by this stack frame
Since:
10
See Also:
MethodType.fromMethodDescriptorString(String, ClassLoader), MethodType.toMethodDescriptorString()
getByteCodeIndex
int getByteCodeIndex
()
Returns the index to the code array of the Code attribute containing the execution point represented by this stack frame. The code array gives the actual bytes of Java Virtual Machine code that implement the method.
Returns:
the index to the code array of the Code attribute containing the execution point represented by this stack frame, or a negative number if the method is native.
getFileName
String getFileName
()
Returns the name of the source file containing the execution point represented by this stack frame. Generally, this corresponds to the SourceFile attribute of the relevant class file as defined by The Java Virtual Machine Specification. In some systems, the name may refer to some source code unit other than a file, such as an entry in a source repository.
Returns:
the name of the file containing the execution point represented by this stack frame, or null if this information is unavailable.
getLineNumber
int getLineNumber
()
Returns the line number of the source line containing the execution point represented by this stack frame. Generally, this is derived from the LineNumberTable attribute of the relevant class file as defined by The Java Virtual Machine Specification.
Returns:
the line number of the source line containing the execution point represented by this stack frame, or a negative number if this information is unavailable.
isNativeMethod
boolean isNativeMethod
()
Returns true if the method containing the execution point represented by this stack frame is a native method.
Returns:
true if the method containing the execution point represented by this stack frame is a native method.
toStackTraceElement
StackTraceElement toStackTraceElement
()
Gets a StackTraceElement for this stack frame.
Returns:
StackTraceElement for this stack frame.
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