https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
  • Andres de la Peña
  • Avinash Lakshman
  • Aleksey Yeschenko
  • Aaron Morton
  • Ariel Weisberg
  • Blake Eggleston
  • Benedict Elliott Smith
  • Benjamin Lerer
  • Branimir Lambov
  • Brandon Williams
  • Carl Yeksigian
  • David Brosiusd
  • Dikang Gu
  • Eric Evans
  • Gary Dusbabek
  • Chris Goffinet
  • Alex Petrov
  • Laine Jaakko Olavi
  • T Jake Luciani
  • Jason Brown
  • Jonathan Ellis
  • Jake Farrell
  • Jeff Jirsa
  • Joel Knighton
  • Josh McKenzie
  • Johan Oskarsson
  • Jun Rao
  • Jay Zhuang
  • Sankalp Kohli
  • Marcus Eriksson
  • Michael Semb Wever
  • Mikhail Stepura
  • Michael Shuler
  • Paulo Motta
  • Prashant Malik
  • Robert Stupp
  • Peter Schuller
  • Sam Tunnicliffe
  • Sylvain Lebresne
  • Stefania Alborghetti
  • Tyler Hobbs
  • Vijay Parthasarathy
  • Pavel Yaskevich
  • Yuki Morishita
  • Nate McCall 
public class org.apache.cassandra.service.GCInspector implements javax.management.NotificationListener, org.apache.cassandra.service.GCInspectorMXBean
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.cassandra.service.GCInspector
  super_class: java.lang.Object
{
  public static final java.lang.String MBEAN_NAME;
    descriptor: Ljava/lang/String;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: "org.apache.cassandra.service:type=GCInspector"

  private static final org.slf4j.Logger logger;
    descriptor: Lorg/slf4j/Logger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static final long MIN_LOG_DURATION;
    descriptor: J
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static final long GC_WARN_THRESHOLD_IN_MS;
    descriptor: J
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static final long STAT_THRESHOLD;
    descriptor: J
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static final java.lang.reflect.Field BITS_TOTAL_CAPACITY;
    descriptor: Ljava/lang/reflect/Field;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  final java.util.concurrent.atomic.AtomicReference<org.apache.cassandra.service.GCInspector$State> state;
    descriptor: Ljava/util/concurrent/atomic/AtomicReference;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/concurrent/atomic/AtomicReference<Lorg/apache/cassandra/service/GCInspector$State;>;

  final java.util.Map<java.lang.String, org.apache.cassandra.service.GCInspector$GCState> gcStates;
    descriptor: Ljava/util/Map;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/String;Lorg/apache/cassandra/service/GCInspector$GCState;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=3, args_size=0
         0: .line 50
            ldc Lorg/apache/cassandra/service/GCInspector;
            invokestatic org.slf4j.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/slf4j/Logger;
            putstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
         1: .line 51
            invokestatic org.apache.cassandra.config.DatabaseDescriptor.getGCLogThreshold:()J
            putstatic org.apache.cassandra.service.GCInspector.MIN_LOG_DURATION:J
         2: .line 52
            invokestatic org.apache.cassandra.config.DatabaseDescriptor.getGCWarnThreshold:()J
            putstatic org.apache.cassandra.service.GCInspector.GC_WARN_THRESHOLD_IN_MS:J
         3: .line 53
            getstatic org.apache.cassandra.service.GCInspector.GC_WARN_THRESHOLD_IN_MS:J
            lconst_0
            lcmp
            ifeq 4
            getstatic org.apache.cassandra.service.GCInspector.GC_WARN_THRESHOLD_IN_MS:J
            goto 5
      StackMap locals:
      StackMap stack:
         4: getstatic org.apache.cassandra.service.GCInspector.MIN_LOG_DURATION:J
      StackMap locals:
      StackMap stack: long
         5: putstatic org.apache.cassandra.service.GCInspector.STAT_THRESHOLD:J
         6: .line 63
            aconst_null
            astore 0 /* temp */
        start local 0 // java.lang.reflect.Field temp
         7: .line 66
            ldc "java.nio.Bits"
            invokestatic java.lang.Class.forName:(Ljava/lang/String;)Ljava/lang/Class;
            astore 1 /* bitsClass */
        start local 1 // java.lang.Class bitsClass
         8: .line 67
            aload 1 /* bitsClass */
            ldc "totalCapacity"
            invokevirtual java.lang.Class.getDeclaredField:(Ljava/lang/String;)Ljava/lang/reflect/Field;
            astore 2 /* f */
        start local 2 // java.lang.reflect.Field f
         9: .line 68
            aload 2 /* f */
            iconst_1
            invokevirtual java.lang.reflect.Field.setAccessible:(Z)V
        10: .line 69
            aload 2 /* f */
            astore 0 /* temp */
        end local 2 // java.lang.reflect.Field f
        end local 1 // java.lang.Class bitsClass
        11: .line 70
            goto 14
        12: .line 71
      StackMap locals: java.lang.reflect.Field
      StackMap stack: java.lang.Throwable
            astore 1 /* t */
        start local 1 // java.lang.Throwable t
        13: .line 73
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            ldc "Error accessing field of java.nio.Bits"
            aload 1 /* t */
            invokeinterface org.slf4j.Logger.debug:(Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 1 // java.lang.Throwable t
        14: .line 76
      StackMap locals:
      StackMap stack:
            aload 0 /* temp */
            putstatic org.apache.cassandra.service.GCInspector.BITS_TOTAL_CAPACITY:Ljava/lang/reflect/Field;
        end local 0 // java.lang.reflect.Field temp
        15: .line 77
            return
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            7   15     0       temp  Ljava/lang/reflect/Field;
            8   11     1  bitsClass  Ljava/lang/Class<*>;
            9   11     2          f  Ljava/lang/reflect/Field;
           13   14     1          t  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           7    11      12  Class java.lang.Throwable

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=6, args_size=1
        start local 0 // org.apache.cassandra.service.GCInspector this
         0: .line 137
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 133
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicReference
            dup
            new org.apache.cassandra.service.GCInspector$State
            dup
            invokespecial org.apache.cassandra.service.GCInspector$State.<init>:()V
            invokespecial java.util.concurrent.atomic.AtomicReference.<init>:(Ljava/lang/Object;)V
            putfield org.apache.cassandra.service.GCInspector.state:Ljava/util/concurrent/atomic/AtomicReference;
         2: .line 135
            aload 0 /* this */
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            putfield org.apache.cassandra.service.GCInspector.gcStates:Ljava/util/Map;
         3: .line 139
            invokestatic java.lang.management.ManagementFactory.getPlatformMBeanServer:()Ljavax/management/MBeanServer;
            astore 1 /* mbs */
        start local 1 // javax.management.MBeanServer mbs
         4: .line 143
            new javax.management.ObjectName
            dup
            ldc "java.lang:type=GarbageCollector,*"
            invokespecial javax.management.ObjectName.<init>:(Ljava/lang/String;)V
            astore 2 /* gcName */
        start local 2 // javax.management.ObjectName gcName
         5: .line 144
            aload 1 /* mbs */
            aload 2 /* gcName */
            aconst_null
            invokeinterface javax.management.MBeanServer.queryNames:(Ljavax/management/ObjectName;Ljavax/management/QueryExp;)Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 4
            goto 9
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.MBeanServer javax.management.ObjectName top java.util.Iterator
      StackMap stack:
         6: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast javax.management.ObjectName
            astore 3 /* name */
        start local 3 // javax.management.ObjectName name
         7: .line 146
            aload 1 /* mbs */
            aload 3 /* name */
            invokevirtual javax.management.ObjectName.getCanonicalName:()Ljava/lang/String;
            ldc Ljava/lang/management/GarbageCollectorMXBean;
            invokestatic java.lang.management.ManagementFactory.newPlatformMXBeanProxy:(Ljavax/management/MBeanServerConnection;Ljava/lang/String;Ljava/lang/Class;)Ljava/lang/Object;
            checkcast java.lang.management.GarbageCollectorMXBean
            astore 5 /* gc */
        start local 5 // java.lang.management.GarbageCollectorMXBean gc
         8: .line 147
            aload 0 /* this */
            getfield org.apache.cassandra.service.GCInspector.gcStates:Ljava/util/Map;
            aload 5 /* gc */
            invokeinterface java.lang.management.GarbageCollectorMXBean.getName:()Ljava/lang/String;
            new org.apache.cassandra.service.GCInspector$GCState
            dup
            aload 5 /* gc */
            aload 5 /* gc */
            invokestatic org.apache.cassandra.service.GCInspector.assumeGCIsPartiallyConcurrent:(Ljava/lang/management/GarbageCollectorMXBean;)Z
            aload 5 /* gc */
            invokestatic org.apache.cassandra.service.GCInspector.assumeGCIsOldGen:(Ljava/lang/management/GarbageCollectorMXBean;)Z
            invokespecial org.apache.cassandra.service.GCInspector$GCState.<init>:(Ljava/lang/management/GarbageCollectorMXBean;ZZ)V
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 5 // java.lang.management.GarbageCollectorMXBean gc
        end local 3 // javax.management.ObjectName name
         9: .line 144
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 6
        10: .line 150
            aload 1 /* mbs */
            aload 0 /* this */
            new javax.management.ObjectName
            dup
            ldc "org.apache.cassandra.service:type=GCInspector"
            invokespecial javax.management.ObjectName.<init>:(Ljava/lang/String;)V
            invokeinterface javax.management.MBeanServer.registerMBean:(Ljava/lang/Object;Ljavax/management/ObjectName;)Ljavax/management/ObjectInstance;
            pop
        end local 2 // javax.management.ObjectName gcName
        11: .line 151
            goto 14
        12: .line 152
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.MBeanServer
      StackMap stack: java.lang.Exception
            astore 2 /* e */
        start local 2 // java.lang.Exception e
        13: .line 154
            new java.lang.RuntimeException
            dup
            aload 2 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.lang.Exception e
        14: .line 156
      StackMap locals:
      StackMap stack:
            return
        end local 1 // javax.management.MBeanServer mbs
        end local 0 // org.apache.cassandra.service.GCInspector this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   15     0    this  Lorg/apache/cassandra/service/GCInspector;
            4   15     1     mbs  Ljavax/management/MBeanServer;
            5   11     2  gcName  Ljavax/management/ObjectName;
            7    9     3    name  Ljavax/management/ObjectName;
            8    9     5      gc  Ljava/lang/management/GarbageCollectorMXBean;
           13   14     2       e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           4    11      12  Class java.lang.Exception

  public static void register();
    descriptor: ()V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=5, args_size=0
         0: .line 160
            new org.apache.cassandra.service.GCInspector
            dup
            invokespecial org.apache.cassandra.service.GCInspector.<init>:()V
            astore 0 /* inspector */
        start local 0 // org.apache.cassandra.service.GCInspector inspector
         1: .line 161
            invokestatic java.lang.management.ManagementFactory.getPlatformMBeanServer:()Ljavax/management/MBeanServer;
            astore 1 /* server */
        start local 1 // javax.management.MBeanServer server
         2: .line 162
            new javax.management.ObjectName
            dup
            ldc "java.lang:type=GarbageCollector,*"
            invokespecial javax.management.ObjectName.<init>:(Ljava/lang/String;)V
            astore 2 /* gcName */
        start local 2 // javax.management.ObjectName gcName
         3: .line 163
            aload 1 /* server */
            aload 2 /* gcName */
            aconst_null
            invokeinterface javax.management.MBeanServer.queryNames:(Ljavax/management/ObjectName;Ljavax/management/QueryExp;)Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 4
            goto 6
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.MBeanServer javax.management.ObjectName top java.util.Iterator
      StackMap stack:
         4: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast javax.management.ObjectName
            astore 3 /* name */
        start local 3 // javax.management.ObjectName name
         5: .line 165
            aload 1 /* server */
            aload 3 /* name */
            aload 0 /* inspector */
            aconst_null
            aconst_null
            invokeinterface javax.management.MBeanServer.addNotificationListener:(Ljavax/management/ObjectName;Ljavax/management/NotificationListener;Ljavax/management/NotificationFilter;Ljava/lang/Object;)V
        end local 3 // javax.management.ObjectName name
         6: .line 163
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 4
         7: .line 167
            return
        end local 2 // javax.management.ObjectName gcName
        end local 1 // javax.management.MBeanServer server
        end local 0 // org.apache.cassandra.service.GCInspector inspector
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            1    8     0  inspector  Lorg/apache/cassandra/service/GCInspector;
            2    8     1     server  Ljavax/management/MBeanServer;
            3    8     2     gcName  Ljavax/management/ObjectName;
            5    6     3       name  Ljavax/management/ObjectName;
    Exceptions:
      throws java.lang.Exception

  private static boolean assumeGCIsPartiallyConcurrent(java.lang.management.GarbageCollectorMXBean);
    descriptor: (Ljava/lang/management/GarbageCollectorMXBean;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // java.lang.management.GarbageCollectorMXBean gc
         0: .line 178
            aload 0 /* gc */
            invokeinterface java.lang.management.GarbageCollectorMXBean.getName:()Ljava/lang/String;
            dup
            astore 1
            invokevirtual java.lang.String.hashCode:()I
            lookupswitch { // 8
          -1911579297: 1
          -1022169080: 2
           -842066396: 3
              2106261: 4
            320101609: 5
            369537270: 6
           1093844743: 7
           1973769762: 8
              default: 11
          }
      StackMap locals: java.lang.String
      StackMap stack:
         1: aload 1
            ldc "ParNew"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         2: aload 1
            ldc "ConcurrentMarkSweep"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
      StackMap locals:
      StackMap stack:
         3: aload 1
            ldc "MarkSweepCompact"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         4: aload 1
            ldc "Copy"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         5: aload 1
            ldc "PS Scavenge"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         6: aload 1
            ldc "G1 Young Generation"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         7: aload 1
            ldc "G1 Old Generation"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
      StackMap locals:
      StackMap stack:
         8: aload 1
            ldc "PS MarkSweep"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
         9: .line 189
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        10: .line 192
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        11: .line 195
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 0 // java.lang.management.GarbageCollectorMXBean gc
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   12     0    gc  Ljava/lang/management/GarbageCollectorMXBean;
    MethodParameters:
      Name  Flags
      gc    

  private static boolean assumeGCIsOldGen(java.lang.management.GarbageCollectorMXBean);
    descriptor: (Ljava/lang/management/GarbageCollectorMXBean;)Z
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // java.lang.management.GarbageCollectorMXBean gc
         0: .line 207
            aload 0 /* gc */
            invokeinterface java.lang.management.GarbageCollectorMXBean.getName:()Ljava/lang/String;
            dup
            astore 1
            invokevirtual java.lang.String.hashCode:()I
            lookupswitch { // 8
          -1911579297: 1
          -1022169080: 2
           -842066396: 3
              2106261: 4
            320101609: 5
            369537270: 6
           1093844743: 7
           1973769762: 8
              default: 11
          }
      StackMap locals: java.lang.String
      StackMap stack:
         1: aload 1
            ldc "ParNew"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         2: aload 1
            ldc "ConcurrentMarkSweep"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
      StackMap locals:
      StackMap stack:
         3: aload 1
            ldc "MarkSweepCompact"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
      StackMap locals:
      StackMap stack:
         4: aload 1
            ldc "Copy"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         5: aload 1
            ldc "PS Scavenge"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         6: aload 1
            ldc "G1 Young Generation"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 9
            goto 11
      StackMap locals:
      StackMap stack:
         7: aload 1
            ldc "G1 Old Generation"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
      StackMap locals:
      StackMap stack:
         8: aload 1
            ldc "PS MarkSweep"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 10
            goto 11
         9: .line 213
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        10: .line 218
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        11: .line 222
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        end local 0 // java.lang.management.GarbageCollectorMXBean gc
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   12     0    gc  Ljava/lang/management/GarbageCollectorMXBean;
    MethodParameters:
      Name  Flags
      gc    

  public void handleNotification(javax.management.Notification, java.lang.Object);
    descriptor: (Ljavax/management/Notification;Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=9, locals=22, args_size=3
        start local 0 // org.apache.cassandra.service.GCInspector this
        start local 1 // javax.management.Notification notification
        start local 2 // java.lang.Object handback
         0: .line 228
            aload 1 /* notification */
            invokevirtual javax.management.Notification.getType:()Ljava/lang/String;
            astore 3 /* type */
        start local 3 // java.lang.String type
         1: .line 229
            aload 3 /* type */
            ldc "com.sun.management.gc.notification"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 44
         2: .line 232
            aload 1 /* notification */
            invokevirtual javax.management.Notification.getUserData:()Ljava/lang/Object;
            checkcast javax.management.openmbean.CompositeData
            astore 4 /* cd */
        start local 4 // javax.management.openmbean.CompositeData cd
         3: .line 233
            aload 4 /* cd */
            invokestatic com.sun.management.GarbageCollectionNotificationInfo.from:(Ljavax/management/openmbean/CompositeData;)Lcom/sun/management/GarbageCollectionNotificationInfo;
            astore 5 /* info */
        start local 5 // com.sun.management.GarbageCollectionNotificationInfo info
         4: .line 234
            aload 5 /* info */
            invokevirtual com.sun.management.GarbageCollectionNotificationInfo.getGcName:()Ljava/lang/String;
            astore 6 /* gcName */
        start local 6 // java.lang.String gcName
         5: .line 235
            aload 5 /* info */
            invokevirtual com.sun.management.GarbageCollectionNotificationInfo.getGcInfo:()Lcom/sun/management/GcInfo;
            astore 7 /* gcInfo */
        start local 7 // com.sun.management.GcInfo gcInfo
         6: .line 237
            aload 7 /* gcInfo */
            invokevirtual com.sun.management.GcInfo.getDuration:()J
            lstore 8 /* duration */
        start local 8 // long duration
         7: .line 244
            aload 0 /* this */
            getfield org.apache.cassandra.service.GCInspector.gcStates:Ljava/util/Map;
            aload 6 /* gcName */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.apache.cassandra.service.GCInspector$GCState
            astore 10 /* gcState */
        start local 10 // org.apache.cassandra.service.GCInspector$GCState gcState
         8: .line 245
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.assumeGCIsPartiallyConcurrent:Z
            ifeq 13
         9: .line 247
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.lastGcTotalDuration:J
            lstore 11 /* previousTotal */
        start local 11 // long previousTotal
        10: .line 248
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.gcBean:Ljava/lang/management/GarbageCollectorMXBean;
            invokeinterface java.lang.management.GarbageCollectorMXBean.getCollectionTime:()J
            lstore 13 /* total */
        start local 13 // long total
        11: .line 249
            aload 10 /* gcState */
            lload 13 /* total */
            putfield org.apache.cassandra.service.GCInspector$GCState.lastGcTotalDuration:J
        12: .line 250
            lload 13 /* total */
            lload 11 /* previousTotal */
            lsub
            lstore 8 /* duration */
        end local 13 // long total
        end local 11 // long previousTotal
        13: .line 253
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String javax.management.openmbean.CompositeData com.sun.management.GarbageCollectionNotificationInfo java.lang.String com.sun.management.GcInfo long org.apache.cassandra.service.GCInspector$GCState
      StackMap stack:
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 11 /* sb */
        start local 11 // java.lang.StringBuilder sb
        14: .line 254
            aload 11 /* sb */
            aload 5 /* info */
            invokevirtual com.sun.management.GarbageCollectionNotificationInfo.getGcName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " GC in "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            lload 8 /* duration */
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc "ms.  "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        15: .line 255
            lconst_0
            lstore 12 /* bytes */
        start local 12 // long bytes
        16: .line 256
            aload 7 /* gcInfo */
            invokevirtual com.sun.management.GcInfo.getMemoryUsageBeforeGc:()Ljava/util/Map;
            astore 14 /* beforeMemoryUsage */
        start local 14 // java.util.Map beforeMemoryUsage
        17: .line 257
            aload 7 /* gcInfo */
            invokevirtual com.sun.management.GcInfo.getMemoryUsageAfterGc:()Ljava/util/Map;
            astore 15 /* afterMemoryUsage */
        start local 15 // java.util.Map afterMemoryUsage
        18: .line 258
            aload 10 /* gcState */
            aload 5 /* info */
            invokevirtual org.apache.cassandra.service.GCInspector$GCState.keys:(Lcom/sun/management/GarbageCollectionNotificationInfo;)[Ljava/lang/String;
            dup
            astore 19
            arraylength
            istore 18
            iconst_0
            istore 17
            goto 30
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String javax.management.openmbean.CompositeData com.sun.management.GarbageCollectionNotificationInfo java.lang.String com.sun.management.GcInfo long org.apache.cassandra.service.GCInspector$GCState java.lang.StringBuilder long java.util.Map java.util.Map top int int java.lang.String[]
      StackMap stack:
        19: aload 19
            iload 17
            aaload
            astore 16 /* key */
        start local 16 // java.lang.String key
        20: .line 260
            aload 14 /* beforeMemoryUsage */
            aload 16 /* key */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.management.MemoryUsage
            astore 20 /* before */
        start local 20 // java.lang.management.MemoryUsage before
        21: .line 261
            aload 15 /* afterMemoryUsage */
            aload 16 /* key */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.management.MemoryUsage
            astore 21 /* after */
        start local 21 // java.lang.management.MemoryUsage after
        22: .line 262
            aload 21 /* after */
            ifnull 29
            aload 21 /* after */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            aload 20 /* before */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            lcmp
            ifeq 29
        23: .line 264
            aload 11 /* sb */
            aload 16 /* key */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc ": "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 20 /* before */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            pop
        24: .line 265
            aload 11 /* sb */
            ldc " -> "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        25: .line 266
            aload 11 /* sb */
            aload 21 /* after */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            pop
        26: .line 267
            aload 16 /* key */
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.keys:[Ljava/lang/String;
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.keys:[Ljava/lang/String;
            arraylength
            iconst_1
            isub
            aaload
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 28
        27: .line 268
            aload 11 /* sb */
            ldc "; "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        28: .line 269
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String javax.management.openmbean.CompositeData com.sun.management.GarbageCollectionNotificationInfo java.lang.String com.sun.management.GcInfo long org.apache.cassandra.service.GCInspector$GCState java.lang.StringBuilder long java.util.Map java.util.Map java.lang.String int int java.lang.String[] java.lang.management.MemoryUsage java.lang.management.MemoryUsage
      StackMap stack:
            lload 12 /* bytes */
            aload 20 /* before */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            aload 21 /* after */
            invokevirtual java.lang.management.MemoryUsage.getUsed:()J
            lsub
            ladd
            lstore 12 /* bytes */
        end local 21 // java.lang.management.MemoryUsage after
        end local 20 // java.lang.management.MemoryUsage before
        end local 16 // java.lang.String key
        29: .line 258
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String javax.management.openmbean.CompositeData com.sun.management.GarbageCollectionNotificationInfo java.lang.String com.sun.management.GcInfo long org.apache.cassandra.service.GCInspector$GCState java.lang.StringBuilder long java.util.Map java.util.Map top int int java.lang.String[]
      StackMap stack:
            iinc 17 1
      StackMap locals:
      StackMap stack:
        30: iload 17
            iload 18
            if_icmplt 19
        31: .line 275
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String javax.management.openmbean.CompositeData com.sun.management.GarbageCollectionNotificationInfo java.lang.String com.sun.management.GcInfo long org.apache.cassandra.service.GCInspector$GCState java.lang.StringBuilder long java.util.Map java.util.Map
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.service.GCInspector.state:Ljava/util/concurrent/atomic/AtomicReference;
            invokevirtual java.util.concurrent.atomic.AtomicReference.get:()Ljava/lang/Object;
            checkcast org.apache.cassandra.service.GCInspector$State
            astore 16 /* prev */
        start local 16 // org.apache.cassandra.service.GCInspector$State prev
        32: .line 276
            aload 0 /* this */
            getfield org.apache.cassandra.service.GCInspector.state:Ljava/util/concurrent/atomic/AtomicReference;
            aload 16 /* prev */
            new org.apache.cassandra.service.GCInspector$State
            dup
            lload 8 /* duration */
            l2d
            lload 12 /* bytes */
            l2d
            aload 16 /* prev */
            invokespecial org.apache.cassandra.service.GCInspector$State.<init>:(DDLorg/apache/cassandra/service/GCInspector$State;)V
            invokevirtual java.util.concurrent.atomic.AtomicReference.compareAndSet:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 31
        end local 16 // org.apache.cassandra.service.GCInspector$State prev
        33: .line 280
            aload 11 /* sb */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 16 /* st */
        start local 16 // java.lang.String st
        34: .line 281
            getstatic org.apache.cassandra.service.GCInspector.GC_WARN_THRESHOLD_IN_MS:J
            lconst_0
            lcmp
            ifeq 36
            lload 8 /* duration */
            getstatic org.apache.cassandra.service.GCInspector.GC_WARN_THRESHOLD_IN_MS:J
            lcmp
            ifle 36
        35: .line 282
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            aload 16 /* st */
            invokeinterface org.slf4j.Logger.warn:(Ljava/lang/String;)V
            goto 40
        36: .line 283
      StackMap locals: java.lang.String
      StackMap stack:
            lload 8 /* duration */
            getstatic org.apache.cassandra.service.GCInspector.MIN_LOG_DURATION:J
            lcmp
            ifle 38
        37: .line 284
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            aload 16 /* st */
            invokeinterface org.slf4j.Logger.info:(Ljava/lang/String;)V
            goto 40
        38: .line 285
      StackMap locals:
      StackMap stack:
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            invokeinterface org.slf4j.Logger.isTraceEnabled:()Z
            ifeq 40
        39: .line 286
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            aload 16 /* st */
            invokeinterface org.slf4j.Logger.trace:(Ljava/lang/String;)V
        40: .line 288
      StackMap locals:
      StackMap stack:
            lload 8 /* duration */
            getstatic org.apache.cassandra.service.GCInspector.STAT_THRESHOLD:J
            lcmp
            ifle 42
        41: .line 289
            invokestatic org.apache.cassandra.utils.StatusLogger.log:()V
        42: .line 292
      StackMap locals:
      StackMap stack:
            aload 10 /* gcState */
            getfield org.apache.cassandra.service.GCInspector$GCState.assumeGCIsOldGen:Z
            ifeq 44
        43: .line 293
            invokestatic org.apache.cassandra.db.lifecycle.LifecycleTransaction.rescheduleFailedDeletions:()V
        end local 16 // java.lang.String st
        end local 15 // java.util.Map afterMemoryUsage
        end local 14 // java.util.Map beforeMemoryUsage
        end local 12 // long bytes
        end local 11 // java.lang.StringBuilder sb
        end local 10 // org.apache.cassandra.service.GCInspector$GCState gcState
        end local 8 // long duration
        end local 7 // com.sun.management.GcInfo gcInfo
        end local 6 // java.lang.String gcName
        end local 5 // com.sun.management.GarbageCollectionNotificationInfo info
        end local 4 // javax.management.openmbean.CompositeData cd
        44: .line 295
      StackMap locals: org.apache.cassandra.service.GCInspector javax.management.Notification java.lang.Object java.lang.String
      StackMap stack:
            return
        end local 3 // java.lang.String type
        end local 2 // java.lang.Object handback
        end local 1 // javax.management.Notification notification
        end local 0 // org.apache.cassandra.service.GCInspector this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0   45     0               this  Lorg/apache/cassandra/service/GCInspector;
            0   45     1       notification  Ljavax/management/Notification;
            0   45     2           handback  Ljava/lang/Object;
            1   45     3               type  Ljava/lang/String;
            3   44     4                 cd  Ljavax/management/openmbean/CompositeData;
            4   44     5               info  Lcom/sun/management/GarbageCollectionNotificationInfo;
            5   44     6             gcName  Ljava/lang/String;
            6   44     7             gcInfo  Lcom/sun/management/GcInfo;
            7   44     8           duration  J
            8   44    10            gcState  Lorg/apache/cassandra/service/GCInspector$GCState;
           10   13    11      previousTotal  J
           11   13    13              total  J
           14   44    11                 sb  Ljava/lang/StringBuilder;
           16   44    12              bytes  J
           17   44    14  beforeMemoryUsage  Ljava/util/Map<Ljava/lang/String;Ljava/lang/management/MemoryUsage;>;
           18   44    15   afterMemoryUsage  Ljava/util/Map<Ljava/lang/String;Ljava/lang/management/MemoryUsage;>;
           20   29    16                key  Ljava/lang/String;
           21   29    20             before  Ljava/lang/management/MemoryUsage;
           22   29    21              after  Ljava/lang/management/MemoryUsage;
           32   33    16               prev  Lorg/apache/cassandra/service/GCInspector$State;
           34   44    16                 st  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      notification  final
      handback      final

  public org.apache.cassandra.service.GCInspector$State getTotalSinceLastCheck();
    descriptor: ()Lorg/apache/cassandra/service/GCInspector$State;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.cassandra.service.GCInspector this
         0: .line 299
            aload 0 /* this */
            getfield org.apache.cassandra.service.GCInspector.state:Ljava/util/concurrent/atomic/AtomicReference;
            new org.apache.cassandra.service.GCInspector$State
            dup
            invokespecial org.apache.cassandra.service.GCInspector$State.<init>:()V
            invokevirtual java.util.concurrent.atomic.AtomicReference.getAndSet:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.apache.cassandra.service.GCInspector$State
            areturn
        end local 0 // org.apache.cassandra.service.GCInspector this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/service/GCInspector;

  public double[] getAndResetStats();
    descriptor: ()[D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=3, args_size=1
        start local 0 // org.apache.cassandra.service.GCInspector this
         0: .line 304
            aload 0 /* this */
            invokevirtual org.apache.cassandra.service.GCInspector.getTotalSinceLastCheck:()Lorg/apache/cassandra/service/GCInspector$State;
            astore 1 /* state */
        start local 1 // org.apache.cassandra.service.GCInspector$State state
         1: .line 305
            bipush 7
            newarray 7
            astore 2 /* r */
        start local 2 // double[] r
         2: .line 306
            aload 2 /* r */
            iconst_0
            getstatic java.util.concurrent.TimeUnit.NANOSECONDS:Ljava/util/concurrent/TimeUnit;
            invokestatic java.lang.System.nanoTime:()J
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.startNanos:J
            lsub
            invokevirtual java.util.concurrent.TimeUnit.toMillis:(J)J
            l2d
            dastore
         3: .line 307
            aload 2 /* r */
            iconst_1
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.maxRealTimeElapsed:D
            dastore
         4: .line 308
            aload 2 /* r */
            iconst_2
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.totalRealTimeElapsed:D
            dastore
         5: .line 309
            aload 2 /* r */
            iconst_3
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.sumSquaresRealTimeElapsed:D
            dastore
         6: .line 310
            aload 2 /* r */
            iconst_4
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.totalBytesReclaimed:D
            dastore
         7: .line 311
            aload 2 /* r */
            iconst_5
            aload 1 /* state */
            getfield org.apache.cassandra.service.GCInspector$State.count:D
            dastore
         8: .line 312
            aload 2 /* r */
            bipush 6
            invokestatic org.apache.cassandra.service.GCInspector.getAllocatedDirectMemory:()J
            l2d
            dastore
         9: .line 314
            aload 2 /* r */
            areturn
        end local 2 // double[] r
        end local 1 // org.apache.cassandra.service.GCInspector$State state
        end local 0 // org.apache.cassandra.service.GCInspector this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   10     0   this  Lorg/apache/cassandra/service/GCInspector;
            1   10     1  state  Lorg/apache/cassandra/service/GCInspector$State;
            2   10     2      r  [D

  private static long getAllocatedDirectMemory();
    descriptor: ()J
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=0
         0: .line 319
            getstatic org.apache.cassandra.service.GCInspector.BITS_TOTAL_CAPACITY:Ljava/lang/reflect/Field;
            ifnonnull 1
            ldc -1
            lreturn
         1: .line 322
      StackMap locals:
      StackMap stack:
            getstatic org.apache.cassandra.service.GCInspector.BITS_TOTAL_CAPACITY:Ljava/lang/reflect/Field;
            aconst_null
            invokevirtual java.lang.reflect.Field.getLong:(Ljava/lang/Object;)J
         2: lreturn
         3: .line 324
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 0 /* t */
        start local 0 // java.lang.Throwable t
         4: .line 326
            getstatic org.apache.cassandra.service.GCInspector.logger:Lorg/slf4j/Logger;
            ldc "Error accessing field of java.nio.Bits"
            aload 0 /* t */
            invokeinterface org.slf4j.Logger.trace:(Ljava/lang/String;Ljava/lang/Throwable;)V
         5: .line 328
            ldc -1
            lreturn
        end local 0 // java.lang.Throwable t
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            4    6     0     t  Ljava/lang/Throwable;
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.Throwable
}
SourceFile: "GCInspector.java"
NestMembers:
  org.apache.cassandra.service.GCInspector$GCState  org.apache.cassandra.service.GCInspector$State
InnerClasses:
  final GCState = org.apache.cassandra.service.GCInspector$GCState of org.apache.cassandra.service.GCInspector
  final State = org.apache.cassandra.service.GCInspector$State of org.apache.cassandra.service.GCInspector