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class:StackTraceElement [NONE]

  • All Implemented Interfaces:
    java.io.Serializable


    public final class StackTraceElement
    extends java.lang.Object
    implements java.io.Serializable
    An element in a stack trace, as returned by Throwable.getStackTrace(). Each element represents a single stack frame. All stack frames except for the one at the top of the stack represent a method invocation. The frame at the top of the stack represents the execution point at which the stack trace was generated. Typically, this is the point at which the throwable corresponding to the stack trace was created.
    Since:
    1.4
    See Also:
    Serialized Form

constructor:StackTraceElement(java.lang.String, java.lang.String, java.lang.String, int) [CHANGED]

  • StackTraceElement

    public StackTraceElement(java.lang.String declaringClass,
                             java.lang.String methodName,
                             java.lang.String fileName,
                             int lineNumber)
    Creates a stack trace element representing the specified execution point. The module name and module version of the stack trace element will be null.
    Parameters:
    declaringClass - the fully qualified name of the class containing the execution point represented by the stack trace element
    methodName - the name of the method containing the execution point represented by the stack trace element
    fileName - the name of the file containing the execution point represented by the stack trace element, or null if this information is unavailable
    lineNumber - the line number of the source line containing the execution point represented by this stack trace element, or a negative number if this information is unavailable. A value of -2 indicates that the method containing the execution point is a native method
    Throws:
    java.lang.NullPointerException - if declaringClass or methodName is null
    Since:
    1.5
  • StackTraceElement

    public StackTraceElement(java.lang.String declaringClass,
                             java.lang.String methodName,
                             java.lang.String fileName,
                             int lineNumber)
    Creates a stack trace element representing the specified execution point.
    Parameters:
    declaringClass - the fully qualified name of the class containing the execution point represented by the stack trace element
    methodName - the name of the method containing the execution point represented by the stack trace element
    fileName - the name of the file containing the execution point represented by the stack trace element, or null if this information is unavailable
    lineNumber - the line number of the source line containing the execution point represented by this stack trace element, or a negative number if this information is unavailable. A value of -2 indicates that the method containing the execution point is a native method
    Throws:
    java.lang.NullPointerException - if declaringClass or methodName is null
    Since:
    1.5
  • StackTraceElement

    public StackTraceElement(java.lang.String declaringClass,
                             java.lang.String methodName,
                             java.lang.String fileName,
                             int lineNumber)
    Creates a stack trace element representing the specified execution point. The module name and module version of the stack trace element will be null.
    Parameters:
    declaringClass - the fully qualified name of the class containing the execution point represented by the stack trace element
    methodName - the name of the method containing the execution point represented by the stack trace element
    fileName - the name of the file containing the execution point represented by the stack trace element, or null if this information is unavailable
    lineNumber - the line number of the source line containing the execution point represented by this stack trace element, or a negative number if this information is unavailable. A value of -2 indicates that the method containing the execution point is a native method
    Throws:
    java.lang.NullPointerException - if declaringClass or methodName is null
    Since:
    1.5

constructor:StackTraceElement(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String, int) [ADDED]

  • StackTraceElement

    public StackTraceElement(java.lang.String classLoaderName,
                             java.lang.String moduleName,
                             java.lang.String moduleVersion,
                             java.lang.String declaringClass,
                             java.lang.String methodName,
                             java.lang.String fileName,
                             int lineNumber)
    
    Creates a stack trace element representing the specified execution point.
    Parameters:
    classLoaderName - the class loader name if the class loader of the class containing the execution point represented by the stack trace is named; otherwise null
    moduleName - the module name if the class containing the execution point represented by the stack trace is in a named module; otherwise null
    moduleVersion - the module version if the class containing the execution point represented by the stack trace is in a named module that has a version; otherwise null
    declaringClass - the fully qualified name of the class containing the execution point represented by the stack trace element
    methodName - the name of the method containing the execution point represented by the stack trace element
    fileName - the name of the file containing the execution point represented by the stack trace element, or null if this information is unavailable
    lineNumber - the line number of the source line containing the execution point represented by this stack trace element, or a negative number if this information is unavailable. A value of -2 indicates that the method containing the execution point is a native method
    Throws:
    java.lang.NullPointerException - if declaringClass is null or methodName is null
    Since:
    9

method:getFileName() [NONE]

  • getFileName

    public java.lang.String getFileName()
    Returns the name of the source file containing the execution point represented by this stack trace element. Generally, this corresponds to the SourceFile attribute of the relevant class file (as per The Java Virtual Machine Specification , Section 4.7.7). In some systems, the name may refer to some source code unit other than a file, such as an entry in source repository.
    Returns:
    the name of the file containing the execution point represented by this stack trace element, or null if this information is unavailable.

method:getLineNumber() [NONE]

  • getLineNumber

    public int getLineNumber()
    Returns the line number of the source line containing the execution point represented by this stack trace element. Generally, this is derived from the LineNumberTable attribute of the relevant class file (as per The Java Virtual Machine Specification , Section 4.7.8).
    Returns:
    the line number of the source line containing the execution point represented by this stack trace element, or a negative number if this information is unavailable.

method:getModuleName() [ADDED]

  • getModuleName

    public java.lang.String getModuleName()
    
    Returns the module name of the module containing the execution point represented by this stack trace element.
    Returns:
    the module name of the Module containing the execution point represented by this stack trace element; null if the module name is not available.
    Since:
    9
    See Also:
    Module.getName()

method:getModuleVersion() [ADDED]

  • getModuleVersion

    public java.lang.String getModuleVersion()
    
    Returns the module version of the module containing the execution point represented by this stack trace element.
    Returns:
    the module version of the Module containing the execution point represented by this stack trace element; null if the module version is not available.
    Since:
    9
    See Also:
    ModuleDescriptor.Version

method:getClassLoaderName() [ADDED]

  • getClassLoaderName

    public java.lang.String getClassLoaderName()
    
    Returns the name of the class loader of the class containing the execution point represented by this stack trace element.
    Returns:
    the name of the class loader of the class containing the execution point represented by this stack trace element; null if the class loader is not named.
    Since:
    9
    See Also:
    ClassLoader.getName()

method:getClassName() [NONE]

  • getClassName

    public java.lang.String getClassName()
    Returns the fully qualified name of the class containing the execution point represented by this stack trace element.
    Returns:
    the fully qualified name of the Class containing the execution point represented by this stack trace element.

method:getMethodName() [NONE]

  • getMethodName

    public java.lang.String getMethodName()
    Returns the name of the method containing the execution point represented by this stack trace element. If the execution point is contained in an instance or class initializer, this method will return the appropriate special method name , <init> or <clinit>, as per Section 3.9 of The Java Virtual Machine Specification .
    Returns:
    the name of the method containing the execution point represented by this stack trace element.

method:isNativeMethod() [NONE]

  • isNativeMethod

    public boolean isNativeMethod()
    Returns true if the method containing the execution point represented by this stack trace element is a native method.
    Returns:
    true if the method containing the execution point represented by this stack trace element is a native method.

method:toString() [CHANGED]

  • toString

    public java.lang.String toString()
    Returns a string representation of this stack trace element.
    Overrides:
    toString in class java.lang.Object
    API Note:
    The format of this string depends on the implementation, but the following examples may be regarded as typical:
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Main.java:101)" - See the description below.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Main.java)" - The line number is unavailable.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Unknown Source) " - Neither the file name nor the line number is available.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Native Method) " - The method containing the execution point is a native method.
    • "com.foo.loader//com.foo.bar.App.run(App.java:12)" - The class of the execution point is defined in the unnamed module of the class loader named com.foo.loader.
    • "acme@2.1/org.acme.Lib.test(Lib.java:80)" - The class of the execution point is defined in acme module loaded by by a built-in class loader such as the application class loader.
    • "MyClass.mash(MyClass.java:9)" - Here,"MyClass "class is on the application class path.

    The first example shows a stack trace element consisting of three elements, each separated by "/" followed with the fully-qualifiedsource file name and the line number of the classsource line containing the execution point represented by this stack trace. The first element ,"mashcom.foo.loader" is the name of the class loader. The second element "foo@9.0" is the module name and version. The third element is the method containing the execution point,; "MyClasscom.foo.Main"" is the fully-qualified class name and "run" is the name of the method. "Main.java" is the source file containing the execution point,name and "9101" is the line number of.

    If a class is defined in an unnamed module then the second element is omitted as shown in "com.foo.loader//com.foo.bar.App.run(App.java:12)".

    If the source line containingclass loader is a built-in class loader or is not named then the execution point."MyClass.mash(MyClassfirst element and its following "/" are omitted as shown in "acme@2.1/org.acme.Lib.test(Lib.java)" - As above, but:80) ". If the line numberfirst element is unavailable. "MyClass.mash(Unknown Source)" - As above, but neitheromitted and the file name normodule is an unnamed module, the line numbersecond element and its following "/" are available.also omitted as shown in "MyClass.mash(Native Method)" - As above, but neitherMyClass.java:9) ".

    The toString method may return two different values on two StackTraceElement instances that are equal, for example one created via the file name nor the line number are availableconstructor, and one obtained from Throwable or StackWalker.StackFrame, where an implementation may choose to omit some element in the method containing the execution point is known to be a native method.

    Overrides:
    toString in class java.lang.Object
    returned string.

    Returns:
    a string representation of the object.
    See Also:
    Throwable.printStackTrace()
  • toString

    public java.lang.String toString()
    Returns a string representation of this stack trace element. The format of this string depends on the implementation, but the following examples may be regarded as typical:
    • "MyClass.mash(MyClass.java:9)" - Here, "MyClass" is the fully-qualified name of the class containing the execution point represented by this stack trace element, "mash" is the name of the method containing the execution point, "MyClass.java" is the source file containing the execution point, and "9" is the line number of the source line containing the execution point.
    • "MyClass.mash(MyClass.java)" - As above, but the line number is unavailable.
    • "MyClass.mash(Unknown Source)" - As above, but neither the file name nor the line number are available.
    • "MyClass.mash(Native Method)" - As above, but neither the file name nor the line number are available, and the method containing the execution point is known to be a native method.
    Overrides:
    toString in class java.lang.Object
    Returns:
    a string representation of the object.
    See Also:
    Throwable.printStackTrace()
  • toString

    public java.lang.String toString()
    Returns a string representation of this stack trace element.
    Overrides:
    toString in class java.lang.Object
    API Note:
    The format of this string depends on the implementation, but the following examples may be regarded as typical:
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Main.java:101)" - See the description below.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Main.java)" - The line number is unavailable.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Unknown Source) " - Neither the file name nor the line number is available.
    • "com.foo.loader/foo@9.0/com.foo.Main.run(Native Method) " - The method containing the execution point is a native method.
    • "com.foo.loader//com.foo.bar.App.run(App.java:12)" - The class of the execution point is defined in the unnamed module of the class loader named com.foo.loader.
    • "acme@2.1/org.acme.Lib.test(Lib.java:80)" - The class of the execution point is defined in acme module loaded by by a built-in class loader such as the application class loader.
    • "MyClass.mash(MyClass.java:9)" - MyClass class is on the application class path.

    The first example shows a stack trace element consisting of three elements, each separated by "/" followed with the source file name and the line number of the source line containing the execution point. The first element "com.foo.loader" is the name of the class loader. The second element "foo@9.0" is the module name and version. The third element is the method containing the execution point; "com.foo.Main"" is the fully-qualified class name and "run" is the name of the method. "Main.java" is the source file name and "101" is the line number.

    If a class is defined in an unnamed module then the second element is omitted as shown in "com.foo.loader//com.foo.bar.App.run(App.java:12)".

    If the class loader is a built-in class loader or is not named then the first element and its following "/" are omitted as shown in "acme@2.1/org.acme.Lib.test(Lib.java:80)". If the first element is omitted and the module is an unnamed module, the second element and its following "/" are also omitted as shown in "MyClass.mash(MyClass.java:9)".

    The toString method may return two different values on two StackTraceElement instances that are equal, for example one created via the constructor, and one obtained from Throwable or StackWalker.StackFrame, where an implementation may choose to omit some element in the returned string.

    Returns:
    a string representation of the object.
    See Also:
    Throwable.printStackTrace()

method:equals(java.lang.Object) [CHANGED]

  • equals

    public boolean equals(java.lang.Object obj)
    Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance. Two stack trace elements a and b are equal if and only if:
    
         equals(a.getFileNamegetClassLoaderName(), b.getFileNamegetClassLoaderName()) &&
         equals(a.getLineNumbergetModuleName(), b.getModuleName()) ==&&
         equals(a.getModuleVersion(), b.getLineNumbergetModuleVersion()) &&
         equals(a.getClassName(), b.getClassName()) &&
         equals(a.getMethodName(), b.getMethodName())
         equals(a.getFileName(), b.getFileName()) &&
         a.getLineNumber() == b.getLineNumber()
    
     
    
    where equals has the semantics of Objects.equals.
    Overrides:
    equals in class java.lang.Object
    Parameters:
    obj - the object to be compared with this stack trace element.
    Returns:
    true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
    See Also:
    Object.hashCode(), HashMap
  • equals

    public boolean equals(java.lang.Object obj)
    Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance. Two stack trace elements a and b are equal if and only if:
    
         equals(a.getFileName(), b.getFileName()) &&
         a.getLineNumber() == b.getLineNumber()) &&
         equals(a.getClassName(), b.getClassName()) &&
         equals(a.getMethodName(), b.getMethodName())
     
    
    where equals has the semantics of Objects.equals.
    Overrides:
    equals in class java.lang.Object
    Parameters:
    obj - the object to be compared with this stack trace element.
    Returns:
    true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
    See Also:
    Object.hashCode(), HashMap
  • equals

    public boolean equals(java.lang.Object obj)
    Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance. Two stack trace elements a and b are equal if and only if:
    
         equals(a.getClassLoaderName(), b.getClassLoaderName()) &&
         equals(a.getModuleName(), b.getModuleName()) &&
         equals(a.getModuleVersion(), b.getModuleVersion()) &&
         equals(a.getClassName(), b.getClassName()) &&
         equals(a.getMethodName(), b.getMethodName())
         equals(a.getFileName(), b.getFileName()) &&
         a.getLineNumber() == b.getLineNumber()
    
     
    
    where equals has the semantics of Objects.equals.
    Overrides:
    equals in class java.lang.Object
    Parameters:
    obj - the object to be compared with this stack trace element.
    Returns:
    true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
    See Also:
    Object.hashCode(), HashMap

method:hashCode() [NONE]

  • hashCode

    public int hashCode()
    Returns a hash code value for this stack trace element.
    Overrides:
    hashCode in class java.lang.Object
    Returns:
    a hash code value for this object.
    See Also:
    Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)