org.eclipse.mat.snapshot.model
Interface GCRootInfo.Type

Enclosing class:
GCRootInfo

public static interface GCRootInfo.Type

Reasons why an heap object is a garbage collection root.

No Implement:

Field Summary
static int BUSY_MONITOR
          Everything you have called wait() or notify() on or you have synchronized on
static int FINALIZABLE
          An object which is a queue awaiting its finalizer to be run
static int JAVA_LOCAL
          Local variable, i.e.
static int JAVA_STACK_FRAME
          A Java stack frame containing references to Java locals
static int NATIVE_LOCAL
          Local variable in native code
static int NATIVE_STACK
          In or out parameters in native code; frequently seen as some methods have native parts and the objects handled as method parameters become GC roots, e.g.
static int NATIVE_STATIC
          Global variable in native code
static int SYSTEM_CLASS
          Class loaded by system class loader, e.g.
static int THREAD_BLOCK
          Started but not stopped threads
static int THREAD_OBJ
          Running or blocked Java threads
static int UNFINALIZED
          An object which has a finalize method, but has not been finalized and is not yet on the finalizer queue
static int UNKNOWN
          GC root of unknown type, or a type not matching any of the other declared types
static int UNREACHABLE
          An object which is unreachable from any other root, but has been marked as a root by MAT to retain objects which otherwise would not be included in the analysis
 

Field Detail

UNKNOWN

static final int UNKNOWN
GC root of unknown type, or a type not matching any of the other declared types

See Also:
Constant Field Values

SYSTEM_CLASS

static final int SYSTEM_CLASS
Class loaded by system class loader, e.g. java.lang.String

See Also:
Constant Field Values

NATIVE_LOCAL

static final int NATIVE_LOCAL
Local variable in native code

See Also:
Constant Field Values

NATIVE_STATIC

static final int NATIVE_STATIC
Global variable in native code

See Also:
Constant Field Values

THREAD_BLOCK

static final int THREAD_BLOCK
Started but not stopped threads

See Also:
THREAD_OBJ, Constant Field Values

BUSY_MONITOR

static final int BUSY_MONITOR
Everything you have called wait() or notify() on or you have synchronized on

See Also:
Constant Field Values

JAVA_LOCAL

static final int JAVA_LOCAL
Local variable, i.e. method input parameters or locally created objects of methods still on the stack of a thread

See Also:
Constant Field Values

NATIVE_STACK

static final int NATIVE_STACK
In or out parameters in native code; frequently seen as some methods have native parts and the objects handled as method parameters become GC roots, e.g. parameters used for file/network I/O methods or reflection

See Also:
Constant Field Values

THREAD_OBJ

static final int THREAD_OBJ
Running or blocked Java threads

See Also:
Constant Field Values

FINALIZABLE

static final int FINALIZABLE
An object which is a queue awaiting its finalizer to be run

See Also:
THREAD_BLOCK, Constant Field Values

UNFINALIZED

static final int UNFINALIZED
An object which has a finalize method, but has not been finalized and is not yet on the finalizer queue

See Also:
Constant Field Values

UNREACHABLE

static final int UNREACHABLE
An object which is unreachable from any other root, but has been marked as a root by MAT to retain objects which otherwise would not be included in the analysis

Since:
1.0
See Also:
Constant Field Values

JAVA_STACK_FRAME

static final int JAVA_STACK_FRAME
A Java stack frame containing references to Java locals

Since:
1.0
See Also:
Constant Field Values