WildFly Full 28 Model Reference

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The management interface for the thread system of the Java virtual machine.

Attributes (15)

  • all-thread-ids All live thread IDs. If a security manager is installed and the caller does not have ManagementPermission("monitor"), then a "read-attribute" operation reading this attribute will fail, and the value for this attribute in the result for the "read-resource" operation will be "undefined".
    • Attribute Value
    Type LIST
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • current-thread-cpu-time The total CPU time for the current thread in nanoseconds, or -1 if "thread-cpu-time-enabled" is "false". A Java virtual machine implementation may not support CPU time measurement. If "thread-cpu-time-supported", is "false" trying to read this attribute via the "read-attribute" operation will result in failure, and the value of this attribute in the result of a "read-resource" operation will be "undefined".
    • Attribute Value
    Type LONG
    Nillable false
    Expressions Allowed false
    Unit NANOSECONDS
    Storage runtime
    Access Type metric
  • current-thread-cpu-time-supported Whether the Java virtual machine supports CPU time measurement for the current thread.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • current-thread-user-time The CPU time that the current thread has executed in user mode in nanoseconds, or -1 if "thread-cpu-time-enabled" is "false". A Java virtual machine implementation may not support CPU time measurement. If "thread-cpu-time-supported", is "false" trying to read this attribute via the "read-attribute" operation will result in failure, and the value of this attribute in the result of a "read-resource" operation will be "undefined".
    • Attribute Value
    Type LONG
    Nillable false
    Expressions Allowed false
    Unit NANOSECONDS
    Storage runtime
    Access Type metric
  • daemon-thread-count The current number of live daemon threads.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • object-monitor-usage-supported Whether the Java virtual machine supports monitoring of object monitor usage.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • object-name String representation the object name of this platform managed object.
    • Attribute Value
    Type STRING
    Nillable true
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • peak-thread-count The peak live thread count since the Java virtual machine started or peak was reset.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • synchronizer-usage-supported Whether the Java virtual machine supports monitoring of ownable synchronizer usage.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • thread-contention-monitoring-enabled Whether thread contention monitoring is enabled.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-write
    Restart Required no-services
  • thread-contention-monitoring-supported Whether the Java virtual machine supports thread contention monitoring.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • thread-count The current number of live threads including both daemon and non-daemon threads.
    • Attribute Value
    Type INT
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric
  • thread-cpu-time-enabled Whether thread CPU time measurement is enabled.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-write
    Restart Required no-services
  • thread-cpu-time-supported Whether the Java virtual machine implementation supports CPU time measurement for any thread.
    • Attribute Value
    Type BOOLEAN
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type read-only
  • total-started-thread-count The total number of threads created and also started since the Java virtual machine started.
    • Attribute Value
    Type LONG
    Nillable false
    Expressions Allowed false
    Storage runtime
    Access Type metric

Operations (9)

  • dump-all-threads Returns the thread info for all live threads with stack trace and synchronization information.
    Request Parameter Type Required Expressions Allowed Default value Description
    locked-monitors BOOLEAN false false false A list of detyped representations java.lang.management.MonitorInfo objects, each of which represents an object monitor currently locked by the thread.
    locked-synchronizers BOOLEAN false false false A list of detyped representations java.lang.management.LockInfo objects, each of which represents an ownable synchronizer currently locked by the thread.

    Reply properties

    type
    LIST
    Value Type
    {
    "thread-id" => {
        "type" => LONG,
        "description" => "The ID of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "thread-name" => {
        "type" => STRING,
        "description" => "The name of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "thread-state" => {
        "type" => STRING,
        "description" => "The state of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "blocked-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has blocked to enter or reenter a monitor since thread contention monitoring is enabled, or -1 if thread contention monitoring is not enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "blocked-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread blocked to enter or reenter a monitor.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "waited-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has waited for notification since thread contention monitoring was enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "waited-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread has waited for notification.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-info" => {
        "type" => OBJECT,
        "description" => "A detyped representation of the java.lang.management.LockInfo of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    },
    "lock-name" => {
        "type" => STRING,
        "description" => "The string representation of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "lock-owner-id" => {
        "type" => LONG,
        "description" => "The ID of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-owner-name" => {
        "type" => STRING,
        "description" => "The name of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "stack-trace" => {
        "type" => LIST,
        "description" => "The stack trace of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "file-name" => {
                "type" => STRING,
                "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "line-number" => {
                "type" => INT,
                "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "method-name" => {
                "type" => STRING,
                "description" => "The name of the method containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "native-method" => {
                "type" => STRING,
                "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            }
        }
    },
    "suspended" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread is suspended.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "in-native" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread associated is executing native code via the Java Native Interface (JNI).",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "locked-monitors" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.MonitorInfo objects, each of which represents an object monitor currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "locked-stack-depth" => {
                "type" => INT,
                "description" => "The depth in the stack trace where the object monitor was locked.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "locked-stack-frame" => {
                "type" => OBJECT,
                "description" => "The stack frame that locked the object monitor.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "value-type" => {
                    "file-name" => {
                        "type" => STRING,
                        "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "line-number" => {
                        "type" => INT,
                        "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true
                    },
                    "class-name" => {
                        "type" => STRING,
                        "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "method-name" => {
                        "type" => STRING,
                        "description" => "The name of the method containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "native-method" => {
                        "type" => STRING,
                        "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    }
                }
            }
        }
    },
    "locked-synchronizers" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.LockInfo objects, each of which represents an ownable synchronizer currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    }
}
  • find-deadlocked-threads Finds cycles of threads that are in deadlock waiting to acquire object monitors or ownable synchronizers.

    Reply properties

    type
    LIST
    Value Type
    LONG
  • find-monitor-deadlocked-threads Finds cycles of threads that are in deadlock waiting to acquire object monitors.

    Reply properties

    type
    LIST
    Value Type
    LONG
  • get-thread-cpu-time Returns the total CPU time for a thread of the specified ID in nanoseconds.
    Request Parameter Type Required Expressions Allowed Default value Description
    id LONG true false The thread ID of the thread. Must be positive.

    Reply properties

    type
    LONG
  • get-thread-info Returns the thread info for a thread of the specified id. The stack trace, locked monitors, and locked synchronizers in the returned reply object will be empty.
    Request Parameter Type Required Expressions Allowed Default value Description
    id LONG true false The thread ID of the thread. Must be positive.
    max-depth INT false false 0 The maximum number of entries in the stack trace to be dumped. Integer.MAX_VALUE could be used to request the entire stack to be dumped.

    Reply properties

    Detyped representation of a java.lang.management.ThreadInfo object for the thread of the given ID; "undefined" if the thread of the given ID is not alive or it does not exist.
    type
    OBJECT
    Value Type
    {
    "thread-id" => {
        "type" => LONG,
        "description" => "The ID of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "thread-name" => {
        "type" => STRING,
        "description" => "The name of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "thread-state" => {
        "type" => STRING,
        "description" => "The state of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "blocked-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has blocked to enter or reenter a monitor since thread contention monitoring is enabled, or -1 if thread contention monitoring is not enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "blocked-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread blocked to enter or reenter a monitor.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "waited-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has waited for notification since thread contention monitoring was enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "waited-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread has waited for notification.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-info" => {
        "type" => OBJECT,
        "description" => "A detyped representation of the java.lang.management.LockInfo of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    },
    "lock-name" => {
        "type" => STRING,
        "description" => "The string representation of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "lock-owner-id" => {
        "type" => LONG,
        "description" => "The ID of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-owner-name" => {
        "type" => STRING,
        "description" => "The name of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "stack-trace" => {
        "type" => LIST,
        "description" => "The stack trace of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "file-name" => {
                "type" => STRING,
                "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "line-number" => {
                "type" => INT,
                "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "method-name" => {
                "type" => STRING,
                "description" => "The name of the method containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "native-method" => {
                "type" => STRING,
                "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            }
        }
    },
    "suspended" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread is suspended.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "in-native" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread associated is executing native code via the Java Native Interface (JNI).",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "locked-monitors" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.MonitorInfo objects, each of which represents an object monitor currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "locked-stack-depth" => {
                "type" => INT,
                "description" => "The depth in the stack trace where the object monitor was locked.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "locked-stack-frame" => {
                "type" => OBJECT,
                "description" => "The stack frame that locked the object monitor.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "value-type" => {
                    "file-name" => {
                        "type" => STRING,
                        "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "line-number" => {
                        "type" => INT,
                        "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true
                    },
                    "class-name" => {
                        "type" => STRING,
                        "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "method-name" => {
                        "type" => STRING,
                        "description" => "The name of the method containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "native-method" => {
                        "type" => STRING,
                        "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    }
                }
            }
        }
    },
    "locked-synchronizers" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.LockInfo objects, each of which represents an ownable synchronizer currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    }
}
  • get-thread-infos Returns the thread info for each thread whose ID is in the input list.
    Request Parameter Type Required Expressions Allowed Default value Description
    ids LIST true false A list of thread ids.
    max-depth INT false false 0 The maximum number of entries in the stack trace to be dumped. Integer.MAX_VALUE could be used to request the entire stack to be dumped.
    locked-monitors BOOLEAN false false false A list of detyped representations java.lang.management.MonitorInfo objects, each of which represents an object monitor currently locked by the thread.
    locked-synchronizers BOOLEAN false false false A list of detyped representations java.lang.management.LockInfo objects, each of which represents an ownable synchronizer currently locked by the thread.

    Reply properties

    A list of detyped representations of java.lang.management.ThreadInfo objects, each containing information about a thread whose ID is in the corresponding element of the input list of IDs. An element will be "undefined" if the thread of the given ID is not alive or it does not exist.
    type
    LIST
    Value Type
    {
    "thread-id" => {
        "type" => LONG,
        "description" => "The ID of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "thread-name" => {
        "type" => STRING,
        "description" => "The name of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "thread-state" => {
        "type" => STRING,
        "description" => "The state of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "blocked-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has blocked to enter or reenter a monitor since thread contention monitoring is enabled, or -1 if thread contention monitoring is not enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "blocked-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread blocked to enter or reenter a monitor.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "waited-time" => {
        "type" => LONG,
        "description" => "The approximate accumulated elapsed time (in milliseconds) that the thread has waited for notification since thread contention monitoring was enabled.",
        "expressions-allowed" => false,
        "required" => true,
        "nillable" => false,
        "unit" => "MILLISECONDS"
    },
    "waited-count" => {
        "type" => LONG,
        "description" => "The total number of times that the thread has waited for notification.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-info" => {
        "type" => OBJECT,
        "description" => "A detyped representation of the java.lang.management.LockInfo of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    },
    "lock-name" => {
        "type" => STRING,
        "description" => "The string representation of an object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "lock-owner-id" => {
        "type" => LONG,
        "description" => "The ID of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "lock-owner-name" => {
        "type" => STRING,
        "description" => "The name of the thread which owns the object for which the thread is blocked waiting.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 1L,
        "max-length" => 2147483647L
    },
    "stack-trace" => {
        "type" => LIST,
        "description" => "The stack trace of the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "file-name" => {
                "type" => STRING,
                "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "line-number" => {
                "type" => INT,
                "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "method-name" => {
                "type" => STRING,
                "description" => "The name of the method containing the execution point represented by this stack trace element.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "native-method" => {
                "type" => STRING,
                "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            }
        }
    },
    "suspended" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread is suspended.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "in-native" => {
        "type" => BOOLEAN,
        "description" => "Whether the thread associated is executing native code via the Java Native Interface (JNI).",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true
    },
    "locked-monitors" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.MonitorInfo objects, each of which represents an object monitor currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "locked-stack-depth" => {
                "type" => INT,
                "description" => "The depth in the stack trace where the object monitor was locked.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            },
            "locked-stack-frame" => {
                "type" => OBJECT,
                "description" => "The stack frame that locked the object monitor.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "value-type" => {
                    "file-name" => {
                        "type" => STRING,
                        "description" => "The name of the source file containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "line-number" => {
                        "type" => INT,
                        "description" => "The line number of the source line containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true
                    },
                    "class-name" => {
                        "type" => STRING,
                        "description" => "The fully qualified name of the class containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "method-name" => {
                        "type" => STRING,
                        "description" => "The name of the method containing the execution point represented by this stack trace element.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    },
                    "native-method" => {
                        "type" => STRING,
                        "description" => "Whether the method containing the execution point represented by this stack trace element is a native method.",
                        "expressions-allowed" => false,
                        "required" => false,
                        "nillable" => true,
                        "min-length" => 1L,
                        "max-length" => 2147483647L
                    }
                }
            }
        }
    },
    "locked-synchronizers" => {
        "type" => LIST,
        "description" => "A list of detyped representations java.lang.management.LockInfo objects, each of which represents an ownable synchronizer currently locked by the thread.",
        "expressions-allowed" => false,
        "required" => false,
        "nillable" => true,
        "min-length" => 0L,
        "max-length" => 2147483647L,
        "value-type" => {
            "class-name" => {
                "type" => STRING,
                "description" => "The fully qualified name of the class of the lock object.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true,
                "min-length" => 1L,
                "max-length" => 2147483647L
            },
            "identity-hash-code" => {
                "type" => INT,
                "description" => "The identity hash code of the lock object returned from the System.identityHashCode(java.lang.Object) method.",
                "expressions-allowed" => false,
                "required" => false,
                "nillable" => true
            }
        }
    }
}
  • get-thread-user-time Returns the CPU time that a thread of the specified ID has executed in user mode in nanoseconds.
    Request Parameter Type Required Expressions Allowed Default value Description
    id LONG true false The thread ID of the thread. Must be positive.

    Reply properties

    type
    LONG
  • read-resource Reads a model resource's attribute values along with either basic or complete information about any child resources
    Request Parameter Type Required Expressions Allowed Default value Description
    recursive BOOLEAN false false Whether to include complete information about child resources, recursively. If absent, false is the default
    recursive-depth INT false false The depth to which information about child resources should be included.
    proxies BOOLEAN false false false Whether to include remote resources in a recursive query (i.e. host level resources in a query of the domain root; running server resources in a query of a host). If absent, false is the default.
    include-runtime BOOLEAN false false false Whether to include runtime attributes (i.e. those whose value does not come from the persistent configuration) in the response. If absent, false is the default.
    include-defaults BOOLEAN false false true Boolean to enable/disable default reading. In case it is set to false only attribute set by user are returned ignoring undefined.
    attributes-only BOOLEAN false false false Whether or not to only read the attributes on the specified resource. Cannot be used in conjunction with 'recursive' or 'recursive-depth'.
    include-aliases BOOLEAN false false false If 'true' and recursive, include children which are aliases.
    include-undefined-metric-values BOOLEAN false false false Whether to include undefined metric values. If the underlying metric value can not be computed, this flag ensures that the value will remain undefined (without being replaced by a possible 'undefined metric value' from the attribute definition.

    Reply properties

    The resource's attribute values along with information about any child resources
    type
    OBJECT
  • reset-peak-thread-count Resets the peak thread count to the current number of live threads.