<?xml version="1.0" encoding="utf-8"?>

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<Metadata>

  <Event name="ThreadStart" category="Java Application" label="Java Thread Start" thread="true" startTime="false">

    <Field type="Thread" name="thread" label="Java Thread" />

  </Event>

  <Event name="ThreadEnd" category="Java Application" label="Java Thread End" thread="true" startTime="false">

    <Field type="Thread" name="thread" label="Java Thread" />

  </Event>

  <Event name="ThreadSleep" category="Java Application" label="Java Thread Sleep" thread="true" stackTrace="true">

    <Field type="long" contentType="millis" name="time" label="Sleep Time" />

  </Event>

  <Event name="ThreadPark" category="Java Application" label="Java Thread Park" thread="true" stackTrace="true">

    <Field type="Class" name="parkedClass" label="Class Parked On" />

    <Field type="ulong" contentType="address" name="address" label="Address of Object Parked" relation="JavaMonitorAddress" />

  </Event>

  <Event name="JavaMonitorEnter" category="Java Application" label="Java Monitor Blocked" thread="true" stackTrace="true">

    <Field type="Class" name="monitorClass" label="Monitor Class" />

    <Field type="Thread" name="previousOwner" label="Previous Monitor Owner" />

    <Field type="ulong" contentType="address" name="address" label="Monitor Address" relation="JavaMonitorAddress" />

  </Event>

  <Event name="JavaMonitorWait" category="Java Application" label="Java Monitor Wait" description="Waiting on a Java monitor" thread="true" stackTrace="true">

    <Field type="Class" name="monitorClass" label="Monitor Class" description="Class of object waited on" />

    <Field type="Thread" name="notifier" label="Notifier Thread" description="Notifying Thread" />

    <Field type="long" contentType="millis" name="timeout" label="Timeout" description="Maximum wait time" />

    <Field type="boolean" name="timedOut" label="Timed Out" description="Wait has been timed out" />

    <Field type="ulong" contentType="address" name="address" label="Monitor Address" description="Address of object waited on" relation="JavaMonitorAddress" />

  </Event>

  <Event name="JavaMonitorInflate" category="Java Application" label="Java Monitor Inflated" thread="true" stackTrace="true">

    <Field type="Class" name="monitorClass" label="Monitor Class" />

    <Field type="ulong" contentType="address" name="address" label="Monitor Address" relation="JavaMonitorAddress" />

    <Field type="InflateCause" name="cause" label="Monitor Inflation Cause" description="Cause of inflation" />

  </Event>

  <Event name="BiasedLockRevocation" category="Java Application" label="Biased Lock Revocation" description="Revoked bias of object" thread="true"

    stackTrace="true">

    <Field type="Class" name="lockClass" label="Lock Class" description="Class of object whose biased lock was revoked" />

    <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />

    <Field type="Thread" name="previousOwner" label="Previous Owner" description="Thread owning the bias before revocation" />

  </Event>

  <Event name="BiasedLockSelfRevocation" category="Java Application" label="Biased Lock Self Revocation" description="Revoked bias of object biased towards own thread"

    thread="true" stackTrace="true">

    <Field type="Class" name="lockClass" label="Lock Class" description="Class of object whose biased lock was revoked" />

  </Event>

  <Event name="BiasedLockClassRevocation" category="Java Application" label="Biased Lock Class Revocation" description="Revoked biases for all instances of a class"

    thread="true" stackTrace="true">

    <Field type="Class" name="revokedClass" label="Revoked Class" description="Class whose biased locks were revoked" />

    <Field type="boolean" name="disableBiasing" label="Disable Further Biasing" description="Whether further biasing for instances of this class will be allowed" />

    <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />

  </Event>

  <Event name="ReservedStackActivation" category="Java Virtual Machine, Runtime" label="Reserved Stack Activation"

    description="Activation of Reserved Stack Area caused by stack overflow with ReservedStackAccess annotated method in call stack" thread="true" stackTrace="true"

    startTime="false">

    <Field type="Method" name="method" label="Java Method" />

  </Event>

  <Event name="ClassLoad" category="Java Virtual Machine, Class Loading" label="Class Load" thread="true" stackTrace="true">

    <Field type="Class" name="loadedClass" label="Loaded Class" />

    <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />

    <Field type="ClassLoader" name="initiatingClassLoader" label="Initiating Class Loader" />

  </Event>

  <Event name="ClassDefine" category="Java Virtual Machine, Class Loading" label="Class Define" thread="true" stackTrace="true" startTime="false">

    <Field type="Class" name="definedClass" label="Defined Class" />

    <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />

  </Event>

  <Event name="ClassUnload" category="Java Virtual Machine, Class Loading" label="Class Unload" thread="true" startTime="false">

    <Field type="Class" name="unloadedClass" label="Unloaded Class" />

    <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />

  </Event>

  <Event name="IntFlagChanged" category="Java Virtual Machine, Flag" label="Int Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="int" name="oldValue" label="Old Value" />

    <Field type="int" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="UnsignedIntFlagChanged" category="Java Virtual Machine, Flag" label="Unsigned Int Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="uint" name="oldValue" label="Old Value" />

    <Field type="uint" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="LongFlagChanged" category="Java Virtual Machine, Flag" label="Long Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="long" name="oldValue" label="Old Value" />

    <Field type="long" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="UnsignedLongFlagChanged" category="Java Virtual Machine, Flag" label="Unsigned Long Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="ulong" name="oldValue" label="Old Value" />

    <Field type="ulong" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="DoubleFlagChanged" category="Java Virtual Machine, Flag" label="Double Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="double" name="oldValue" label="Old Value" />

    <Field type="double" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="BooleanFlagChanged" category="Java Virtual Machine, Flag" label="Boolean Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="boolean" name="oldValue" label="Old Value" />

    <Field type="boolean" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Event name="StringFlagChanged" category="Java Virtual Machine, Flag" label="String Flag Changed" startTime="false">

    <Field type="string" name="name" label="Name" />

    <Field type="string" name="oldValue" label="Old Value" />

    <Field type="string" name="newValue" label="New Value" />

    <Field type="FlagValueOrigin" name="origin" label="Origin" />

  </Event>

  <Type name="VirtualSpace">

    <Field type="ulong" contentType="address" name="start" label="Start Address" description="Start address of the virtual space" />

    <Field type="ulong" contentType="address" name="committedEnd" label="Committed End Address" description="End address of the committed memory for the virtual space" />

    <Field type="ulong" contentType="bytes" name="committedSize" label="Committed Size" description="Size of the committed memory for the virtual space" />

    <Field type="ulong" contentType="address" name="reservedEnd" label="Reserved End Address" description="End address of the reserved memory for the virtual space" />

    <Field type="ulong" contentType="bytes" name="reservedSize" label="Reserved Size" description="Size of the reserved memory for the virtual space" />

  </Type>

  <Type name="ObjectSpace">

    <Field type="ulong" contentType="address" name="start" label="Start Address" description="Start address of the space" />

    <Field type="ulong" contentType="address" name="end" label="End Address" description="End address of the space" />

    <Field type="ulong" contentType="bytes" name="used" label="Used" description="Bytes allocated by objects in the space" />

    <Field type="ulong" contentType="bytes" name="size" label="Size" description="Size of the space" />

  </Type>

  <Event name="GCHeapSummary" category="Java Virtual Machine, GC, Heap" label="Heap Summary" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCWhen" name="when" label="When" />

    <Field type="VirtualSpace" struct="true" name="heapSpace" label="Heap Space" />

    <Field type="ulong" contentType="bytes" name="heapUsed" label="Heap Used" description="Bytes allocated by objects in the heap" />

  </Event>

  <Type name="MetaspaceSizes">

    <Field type="ulong" contentType="bytes" name="committed" label="Committed" description="Committed memory for this space" />

    <Field type="ulong" contentType="bytes" name="used" label="Used" description="Bytes allocated by objects in the space" />

    <Field type="ulong" contentType="bytes" name="reserved" label="Reserved" description="Reserved memory for this space" />

  </Type>

  <Event name="MetaspaceSummary" category="Java Virtual Machine, GC, Heap" label="Metaspace Summary" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCWhen" name="when" label="When" />

    <Field type="ulong" contentType="bytes" name="gcThreshold" label="GC Threshold" />

    <Field type="MetaspaceSizes" struct="true" name="metaspace" label="Total" />

    <Field type="MetaspaceSizes" struct="true" name="dataSpace" label="Data" />

    <Field type="MetaspaceSizes" struct="true" name="classSpace" label="Class" />

  </Event>

  <Event name="MetaspaceGCThreshold" category="Java Virtual Machine, GC, Metaspace" label="Metaspace GC Threshold" startTime="false">

    <Field type="ulong" contentType="bytes" name="oldValue" label="Old Value" />

    <Field type="ulong" contentType="bytes" name="newValue" label="New Value" />

    <Field type="GCThresholdUpdater" name="updater" label="Updater" />

  </Event>

  <Event name="MetaspaceAllocationFailure" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Allocation Failure" startTime="false"

    stackTrace="true">

    <Field type="ClassLoader" name="classLoader" label="Class Loader" />

    <Field type="boolean" name="unsafeAnonymousClassLoader" label="Unsafe Anonymous Class Loader" />

    <Field type="ulong" contentType="bytes" name="size" label="Size" />

    <Field type="MetadataType" name="metadataType" label="Metadata Type" />

    <Field type="MetaspaceObjectType" name="metaspaceObjectType" label="Metaspace Object Type" />

  </Event>

  <Event name="MetaspaceOOM" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Out of Memory" startTime="false" stackTrace="true">

    <Field type="ClassLoader" name="classLoader" label="Class Loader" />

    <Field type="boolean" name="unsafeAnonymousClassLoader" label="Unsafe Anonymous Class Loader" />

    <Field type="ulong" contentType="bytes" name="size" label="Size" />

    <Field type="MetadataType" name="metadataType" label="Metadata Type" />

    <Field type="MetaspaceObjectType" name="metaspaceObjectType" label="Metaspace Object Type" />

  </Event>

  <Event name="MetaspaceChunkFreeListSummary" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Chunk Free List Summary" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCWhen" name="when" label="When" />

    <Field type="MetadataType" name="metadataType" label="Metadata Type" />

    <Field type="ulong" name="specializedChunks" label="Specialized Chunks" />

    <Field type="ulong" contentType="bytes" name="specializedChunksTotalSize" label="Specialized Chunks Total Size" />

    <Field type="ulong" name="smallChunks" label="Small Chunks" />

    <Field type="ulong" contentType="bytes" name="smallChunksTotalSize" label="Small Chunks Total Size" />

    <Field type="ulong" name="mediumChunks" label="Medium Chunks" />

    <Field type="ulong" contentType="bytes" name="mediumChunksTotalSize" label="Medium Chunks Total Size" />

    <Field type="ulong" name="humongousChunks" label="Humongous Chunks" />

    <Field type="ulong" contentType="bytes" name="humongousChunksTotalSize" label="Humongous Chunks Total Size" />

  </Event>

  <Event name="PSHeapSummary" category="Java Virtual Machine, GC, Heap" label="Parallel Scavenge Heap Summary" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCWhen" name="when" label="When" />

    <Field type="VirtualSpace" struct="true" name="oldSpace" label="Old Space" />

    <Field type="ObjectSpace" struct="true" name="oldObjectSpace" label="Old Object Space" />

    <Field type="VirtualSpace" struct="true" name="youngSpace" label="Young Space" />

    <Field type="ObjectSpace" struct="true" name="edenSpace" label="Eden Space" />

    <Field type="ObjectSpace" struct="true" name="fromSpace" label="From Space" />

    <Field type="ObjectSpace" struct="true" name="toSpace" label="To Space" />

  </Event>

  <Event name="G1HeapSummary" category="Java Virtual Machine, GC, Heap" label="G1 Heap Summary" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCWhen" name="when" label="When" />

    <Field type="ulong" contentType="bytes" name="edenUsedSize" label="Eden Used Size" />

    <Field type="ulong" contentType="bytes" name="edenTotalSize" label="Eden Total Size" />

    <Field type="ulong" contentType="bytes" name="survivorUsedSize" label="Survivor Used Size" />

    <Field type="uint" name="numberOfRegions" label="Number of Regions" />

  </Event>

  <Event name="GarbageCollection" category="Java Virtual Machine, GC, Collector" label="Garbage Collection" description="Garbage collection performed by the JVM">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="GCName" name="name" label="Name" description="The name of the Garbage Collector" />

    <Field type="GCCause" name="cause" label="Cause" description="The reason for triggering this Garbage Collection" />

    <Field type="Tickspan" name="sumOfPauses" label="Sum of Pauses" description="Sum of all the times in which Java execution was paused during the garbage collection" />

    <Field type="Tickspan" name="longestPause" label="Longest Pause" description="Longest individual pause during the garbage collection" />

  </Event>

  <Event name="ParallelOldGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Parallel Old Garbage Collection"

    description="Extra information specific to Parallel Old Garbage Collections">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="ulong" contentType="address" name="densePrefix" label="Dense Prefix" description="The address of the dense prefix, used when compacting" />

  </Event>

  <Event name="YoungGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Young Garbage Collection" description="Extra information specific to Young Garbage Collections">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="uint" name="tenuringThreshold" label="Tenuring Threshold" />

  </Event>

  <Event name="OldGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Old Garbage Collection" description="Extra information specific to Old Garbage Collections">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

  </Event>

  <Event name="G1GarbageCollection" category="Java Virtual Machine, GC, Collector" label="G1 Garbage Collection" description="Extra information specific to G1 Garbage Collections">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="G1YCType" name="type" label="Type" />

  </Event>

  <Event name="G1MMU" category="Java Virtual Machine, GC, Detailed" label="G1 MMU Information" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="long" contentType="millis" name="timeSlice" label="Time Slice" description="Time slice used to calculate MMU" />

    <Field type="long" contentType="millis" name="gcTime" label="GC Time" description="Time stopped because of GC during last time slice" />

    <Field type="long" contentType="millis" name="pauseTarget" label="Pause Target" description="Max time allowed to be spent on GC during last time slice" />

  </Event>

  <Event name="EvacuationInformation" category="Java Virtual Machine, GC, Detailed" label="Evacuation Information" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="uint" name="cSetRegions" label="Collection Set Regions" />

    <Field type="ulong" contentType="bytes" name="cSetUsedBefore" label="Collection Set Before" description="Memory usage before GC in the collection set regions" />

    <Field type="ulong" contentType="bytes" name="cSetUsedAfter" label="Collection Set After" description="Memory usage after GC in the collection set regions" />

    <Field type="uint" name="allocationRegions" label="Allocation Regions" description="Regions chosen as allocation regions during evacuation (includes survivors and old space regions)" />

    <Field type="ulong" contentType="bytes" name="allocationRegionsUsedBefore" label="Allocation Regions Before" description="Memory usage before GC in allocation regions" />

    <Field type="ulong" contentType="bytes" name="allocationRegionsUsedAfter" label="Allocation Regions After" description="Memory usage after GC in allocation regions" />

    <Field type="ulong" contentType="bytes" name="bytesCopied" label="Bytes Copied" />

    <Field type="uint" name="regionsFreed" label="Regions Freed" />

  </Event>

  <Event name="GCReferenceStatistics" category="Java Virtual Machine, GC, Reference" label="GC Reference Statistics" startTime="false"

    description="Total count of processed references during GC">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="ReferenceType" name="type" label="Type" />

    <Field type="ulong" name="count" label="Total Count" />

  </Event>

  <Type name="CopyFailed">

    <Field type="ulong" name="objectCount" label="Object Count" />

    <Field type="ulong" contentType="bytes" name="firstSize" label="First Failed Object Size" />

    <Field type="ulong" contentType="bytes" name="smallestSize" label="Smallest Failed Object Size" />

    <Field type="ulong" contentType="bytes" name="totalSize" label="Total Object Size" />

  </Type>

  <Event name="ObjectCountAfterGC" category="Java Virtual Machine, GC, Detailed" startTime="false" label="Object Count after GC">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="Class" name="objectClass" label="Object Class" />

    <Field type="long" name="count" label="Count" />

    <Field type="ulong" contentType="bytes" name="totalSize" label="Total Size" />

  </Event>

  <Type name="G1EvacuationStatistics">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="ulong" contentType="bytes" name="allocated" label="Allocated" description="Total memory allocated by PLABs" />

    <Field type="ulong" contentType="bytes" name="wasted" label="Wasted" description="Total memory wasted within PLABs due to alignment or refill" />

    <Field type="ulong" contentType="bytes" name="used" label="Used" description="Total memory occupied by objects within PLABs" />

    <Field type="ulong" contentType="bytes" name="undoWaste" label="Undo Wasted" description="Total memory wasted due to allocation undo within PLABs" />

    <Field type="ulong" contentType="bytes" name="regionEndWaste" label="Region End Wasted" description="Total memory wasted at the end of regions due to refill" />

    <Field type="uint" contentType="bytes" name="regionsRefilled" label="Region Refills" description="Total memory wasted at the end of regions due to refill" />

    <Field type="ulong" contentType="bytes" name="directAllocated" label="Allocated (direct)" description="Total memory allocated using direct allocation outside of PLABs" />

    <Field type="ulong" contentType="bytes" name="failureUsed" label="Used (failure)" description="Total memory occupied by objects in regions where evacuation failed" />

    <Field type="ulong" contentType="bytes" name="failureWaste" label="Wasted (failure)" description="Total memory left unused in regions where evacuation failed" />

  </Type>

  <Event name="G1EvacuationYoungStatistics" category="Java Virtual Machine, GC, Detailed" label="G1 Evacuation Statistics for Young" startTime="false"

    description="Memory related evacuation statistics during GC for the young generation">

    <Field type="G1EvacuationStatistics" struct="true" name="statistics" label="Evacuation Statistics" />

  </Event>

  <Event name="G1EvacuationOldStatistics" category="Java Virtual Machine, GC, Detailed" label="G1 Evacuation Memory Statistics for Old" startTime="false"

    description="Memory related evacuation statistics during GC for the old generation">

    <Field type="G1EvacuationStatistics" struct="true" name="statistics" label="Evacuation Statistics" />

  </Event>

  <Event name="G1BasicIHOP" category="Java Virtual Machine, GC, Detailed" label="G1 Basic IHOP Statistics" startTime="false"

    description="Basic statistics related to current IHOP calculation">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="ulong" contentType="bytes" name="threshold" label="Current IHOP Threshold" description="Current IHOP threshold" />

    <Field type="float" contentType="percentage" name="thresholdPercentage" label="Current IHOP Threshold" description="Current IHOP threshold in percent of old generation" />

    <Field type="ulong" contentType="bytes" name="targetOccupancy" label="Target Occupancy" description="Target old generation occupancy to reach at the start of mixed GC" />

    <Field type="ulong" contentType="bytes" name="currentOccupancy" label="Current Occupancy" description="Current old generation occupancy" />

    <Field type="ulong" contentType="bytes" name="recentMutatorAllocationSize" label="Recent Mutator Allocation Size"

      description="Mutator allocation during mutator operation in the most recent interval" />

    <Field type="long" contentType="millis" name="recentMutatorDuration" label="Recent Mutator Duration" description="Time the mutator ran in the most recent interval" />

    <Field type="double" name="recentAllocationRate" label="Recent Allocation Rate" description="Allocation rate of the mutator in the most recent interval in bytes/second" />

    <Field type="long" contentType="millis" name="lastMarkingDuration" label="Last Marking Duration" description="Last time from the end of the last initial mark to the first mixed GC" />

  </Event>

  <Event name="G1AdaptiveIHOP" category="Java Virtual Machine, GC, Detailed" label="G1 Adaptive IHOP Statistics" startTime="false"

    description="Statistics related to current adaptive IHOP calculation">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="ulong" contentType="bytes" name="threshold" label="Threshold" description="Current IHOP Threshold" />

    <Field type="float" contentType="percentage" name="thresholdPercentage" label="Threshold" description="Current IHOP threshold in percent of the internal target occupancy" />

    <Field type="ulong" contentType="bytes" name="ihopTargetOccupancy" label="IHOP Target Occupancy" description="Internal target old generation occupancy to reach at the start of mixed GC" />

    <Field type="ulong" contentType="bytes" name="currentOccupancy" label="Current Occupancy" description="Current old generation occupancy" />

    <Field type="ulong" contentType="bytes" name="additionalBufferSize" label="Additional Buffer" description="Additional buffer size" experimental="true" />

    <Field type="double" name="predictedAllocationRate" label="Predicted Allocation Rate" description="Current predicted allocation rate for the mutator in bytes/second" />

    <Field type="long" contentType="millis" name="predictedMarkingDuration" label="Predicted Marking Duration"

      description="Current predicted time from the end of the last initial mark to the first mixed GC" />

    <Field type="boolean" name="predictionActive" label="Prediction Active" description="Indicates whether the adaptive IHOP prediction is active" />

  </Event>

  <Event name="PromoteObjectInNewPLAB" category="Java Virtual Machine, GC, Detailed" label="Promotion in new PLAB"

    description="Object survived scavenge and was copied to a new Promotion Local Allocation Buffer (PLAB). Supported GCs are Parallel Scavange, G1 and CMS with Parallel New. Due to promotion being done in parallel an object might be reported multiple times as the GC threads race to copy all objects."

    thread="true" stackTrace="false" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" description="Identifier signifying GC during which the object was promoted" />

    <Field type="Class" name="objectClass" label="Object Class" description="Class of promoted object" />

    <Field type="ulong" contentType="bytes" name="objectSize" label="Object Size" description="Size of promoted object" />

    <Field type="uint" name="tenuringAge" label="Object Tenuring Age"

      description="Tenuring age of a surviving object before being copied. The tenuring age of an object is a value between 0-15 and is incremented each scavange the object survives. Newly allocated objects have tenuring age 0." />

    <Field type="boolean" name="tenured" label="Tenured" description="True if object was promoted to Old space, otherwise the object was aged and copied to a Survivor space" />

    <Field type="ulong" contentType="bytes" name="plabSize" label="PLAB Size" description="Size of the allocated PLAB to which the object was copied" />

  </Event>

  <Event name="PromoteObjectOutsidePLAB" category="Java Virtual Machine, GC, Detailed" label="Promotion outside PLAB"

    description="Object survived scavenge and was copied directly to the heap. Supported GCs are Parallel Scavange, G1 and CMS with Parallel New. Due to promotion being done in parallel an object might be reported multiple times as the GC threads race to copy all objects."

    thread="true" stackTrace="false" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" description="Identifier signifying GC during which the object was promoted" />

    <Field type="Class" name="objectClass" label="Object Class" description="Class of promoted object" />

    <Field type="ulong" contentType="bytes" name="objectSize" label="Object Size" description="Size of promoted object" />

    <Field type="uint" name="tenuringAge" label="Object Tenuring Age"

      description="Tenuring age of a surviving object before being copied. The tenuring age of an object is a value between 0-15 and is incremented each scavange the object survives. Newly allocated objects have tenuring age 0." />

    <Field type="boolean" name="tenured" label="Tenured" description="True if object was promoted to Old space, otherwise the object was aged and copied to a Survivor space" />

  </Event>

  <Event name="PromotionFailed" category="Java Virtual Machine, GC, Detailed" label="Promotion Failed" startTime="false" description="Promotion of an object failed">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="CopyFailed" struct="true" name="promotionFailed" label="Promotion Failed Data" />

    <Field type="Thread" name="thread" label="Running thread" />

  </Event>

  <Event name="EvacuationFailed" category="Java Virtual Machine, GC, Detailed" label="Evacuation Failed" startTime="false" description="Evacuation of an object failed">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="CopyFailed" struct="true" name="evacuationFailed" label="Evacuation Failed Data" />

  </Event>

  <Event name="ConcurrentModeFailure" category="Java Virtual Machine, GC, Detailed" label="Concurrent Mode Failure" startTime="false" description="Concurrent Mode failed">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

  </Event>

  <Event name="GCPhasePause" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhasePauseLevel1" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 1" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhasePauseLevel2" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 2" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhasePauseLevel3" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 3" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhasePauseLevel4" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 4" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhaseConcurrent" category="Java Virtual Machine, GC, Phases" label="GC Phase Concurrent" thread="true">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="GCPhaseParallel" category="Java Virtual Machine, GC, Phases" label="GC Phase Parallel"

         startTime="true" thread="true" description="GC phases for parallel workers">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId"/>

    <Field type="uint" name="gcWorkerId" label="GC Worker Identifier" />

    <Field type="string" name="name" label="Name" />

  </Event>

  <Event name="AllocationRequiringGC" category="Java Virtual Machine, GC, Detailed" label="Allocation Requiring GC" thread="true" stackTrace="true"

    startTime="false">

    <Field type="uint" name="gcId" label="Pending GC Identifier" relation="GcId" />

    <Field type="ulong" contentType="bytes" name="size" label="Allocation Size" />

  </Event>

  <Event name="TenuringDistribution" category="Java Virtual Machine, GC, Detailed" label="Tenuring Distribution" startTime="false">

    <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />

    <Field type="uint" name="age" label="Age" />

    <Field type="ulong" contentType="bytes" name="size" label="Size" />

  </Event>

  <Event name="G1HeapRegionTypeChange" category="Java Virtual Machine, GC, Detailed" label="G1 Heap Region Type Change" description="Information about a G1 heap region type change"

    startTime="false">

    <Field type="uint" name="index" label="Index" />

    <Field type="G1HeapRegionType" name="from" label="From" />

    <Field type="G1HeapRegionType" name="to" label="To" />

    <Field type="ulong" contentType="address" name="start" label="Start" />

    <Field type="ulong" contentType="bytes" name="used" label="Used" />

  </Event>

  <Event name="Compilation" category="Java Virtual Machine, Compiler" label="Compilation" thread="true">

    <Field type="Method" name="method" label="Java Method" />

    <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />

    <Field type="ushort" name="compileLevel" label="Compilation Level" />

    <Field type="boolean" name="succeded" label="Succeeded" />

    <Field type="boolean" name="isOsr" label="On Stack Replacement" />

    <Field type="ulong" contentType="bytes" name="codeSize" label="Compiled Code Size" />

    <Field type="ulong" contentType="bytes" name="inlinedBytes" label="Inlined Code Size" />

  </Event>

  <Event name="CompilerPhase" category="Java Virtual Machine, Compiler" label="Compiler Phase" thread="true" >

    <Field type="CompilerPhaseType" name="phase" label="Compile Phase" />

    <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />

    <Field type="ushort" name="phaseLevel" label="Phase Level" />

  </Event>

  <Event name="CompilationFailure" category="Java Virtual Machine, Compiler" label="Compilation Failure" thread="true"  startTime="false">

    <Field type="string" name="failureMessage" label="Failure Message" />

    <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />

  </Event>

  <Type name="CalleeMethod">

    <Field type="string" name="type" label="Class" />

    <Field type="string" name="name" label="Method Name" />

    <Field type="string" name="descriptor" label="Method Descriptor" />

  </Type>

  <Event name="CompilerInlining" category="Java Virtual Machine, Compiler, Optimization" label="Method Inlining" thread="true" startTime="false">

    <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />

    <Field type="Method" name="caller" label="Caller Method" />

    <Field type="CalleeMethod" name="callee" struct="true" label="Callee Method" />

    <Field type="boolean" name="succeeded" label="Succeeded" />

    <Field type="string" name="message" label="Message" />

    <Field type="int" name="bci" label="Byte Code Index" />

  </Event>

  <Event name="SweepCodeCache" category="Java Virtual Machine, Code Sweeper" label="Sweep Code Cache" thread="true" >

    <Field type="int" name="sweepId" label="Sweep Identifier" relation="SweepId" />

    <Field type="uint" name="sweptCount" label="Methods Swept" />

    <Field type="uint" name="flushedCount" label="Methods Flushed" />

    <Field type="uint" name="zombifiedCount" label="Methods Zombified" />

  </Event>

  <Event name="CodeCacheFull" category="Java Virtual Machine, Code Cache" label="Code Cache Full" thread="true" startTime="false">

    <Field type="CodeBlobType" name="codeBlobType" label="Code Heap" />

    <Field type="ulong" contentType="address" name="startAddress" label="Start Address" />

    <Field type="ulong" contentType="address" name="commitedTopAddress" label="Commited Top" />

    <Field type="ulong" contentType="address" name="reservedTopAddress" label="Reserved Top" />

    <Field type="int" name="entryCount" label="Entries" />

    <Field type="int" name="methodCount" label="Methods" />

    <Field type="int" name="adaptorCount" label="Adaptors" />

    <Field type="ulong" contentType="bytes" name="unallocatedCapacity" label="Unallocated" />

    <Field type="int" name="fullCount" label="Full Count" />

  </Event>

  <Event name="SafepointBegin" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint Begin" description="Safepointing begin" thread="true">

    <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />

    <Field type="int" name="totalThreadCount" label="Total Threads" description="The total number of threads at the start of safe point" />

    <Field type="int" name="jniCriticalThreadCount" label="JNI Critical Threads" description="The number of threads in JNI critical sections" />

  </Event>