java/15 : jdk.jfr/jdk/jfr/FlightRecorder.class

FlightRecorder
https://openjdk.java.net/
GPLv2 + Classpath Exception
public final class jdk.jfr.FlightRecorder
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: jdk.jfr.FlightRecorder
  super_class: java.lang.Object
{
  private static volatile jdk.jfr.FlightRecorder platformRecorder;
    descriptor: Ljdk/jfr/FlightRecorder;
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  private static volatile boolean initialized;
    descriptor: Z
    flags: (0x004a) ACC_PRIVATE, ACC_STATIC, ACC_VOLATILE

  private final jdk.jfr.internal.PlatformRecorder internal;
    descriptor: Ljdk/jfr/internal/PlatformRecorder;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private void <init>(jdk.jfr.internal.PlatformRecorder);
    descriptor: (Ljdk/jfr/internal/PlatformRecorder;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // jdk.jfr.FlightRecorder this
        start local 1 // jdk.jfr.internal.PlatformRecorder internal
         0: .line 64
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 65
            aload 0 /* this */
            aload 1 /* internal */
            putfield jdk.jfr.FlightRecorder.internal:Ljdk/jfr/internal/PlatformRecorder;
         2: .line 66
            return
        end local 1 // jdk.jfr.internal.PlatformRecorder internal
        end local 0 // jdk.jfr.FlightRecorder this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Ljdk/jfr/FlightRecorder;
            0    3     1  internal  Ljdk/jfr/internal/PlatformRecorder;
    MethodParameters:
          Name  Flags
      internal  

  public java.util.List<jdk.jfr.Recording> getRecordings();
    descriptor: ()Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // jdk.jfr.FlightRecorder this
         0: .line 78
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 1 /* recs */
        start local 1 // java.util.List recs
         1: .line 79
            aload 0 /* this */
            getfield jdk.jfr.FlightRecorder.internal:Ljdk/jfr/internal/PlatformRecorder;
            invokevirtual jdk.jfr.internal.PlatformRecorder.getRecordings:()Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 3
            goto 4
      StackMap locals: jdk.jfr.FlightRecorder java.util.List top java.util.Iterator
      StackMap stack:
         2: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast jdk.jfr.internal.PlatformRecording
            astore 2 /* r */
        start local 2 // jdk.jfr.internal.PlatformRecording r
         3: .line 80
            aload 1 /* recs */
            aload 2 /* r */
            invokevirtual jdk.jfr.internal.PlatformRecording.getRecording:()Ljdk/jfr/Recording;
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 2 // jdk.jfr.internal.PlatformRecording r
         4: .line 79
      StackMap locals:
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 2
         5: .line 82
            aload 1 /* recs */
            invokestatic java.util.Collections.unmodifiableList:(Ljava/util/List;)Ljava/util/List;
            areturn
        end local 1 // java.util.List recs
        end local 0 // jdk.jfr.FlightRecorder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Ljdk/jfr/FlightRecorder;
            1    6     1  recs  Ljava/util/List<Ljdk/jfr/Recording;>;
            3    4     2     r  Ljdk/jfr/internal/PlatformRecording;
    Signature: ()Ljava/util/List<Ljdk/jfr/Recording;>;

  public jdk.jfr.Recording takeSnapshot();
    descriptor: ()Ljdk/jfr/Recording;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // jdk.jfr.FlightRecorder this
         0: .line 112
            new jdk.jfr.Recording
            dup
            invokespecial jdk.jfr.Recording.<init>:()V
            astore 1 /* snapshot */
        start local 1 // jdk.jfr.Recording snapshot
         1: .line 113
            aload 1 /* snapshot */
            ldc "Snapshot"
            invokevirtual jdk.jfr.Recording.setName:(Ljava/lang/String;)V
         2: .line 114
            aload 0 /* this */
            getfield jdk.jfr.FlightRecorder.internal:Ljdk/jfr/internal/PlatformRecorder;
            aload 1 /* snapshot */
            invokevirtual jdk.jfr.Recording.getInternal:()Ljdk/jfr/internal/PlatformRecording;
            aconst_null
            invokevirtual jdk.jfr.internal.PlatformRecorder.fillWithRecordedData:(Ljdk/jfr/internal/PlatformRecording;Ljava/lang/Boolean;)V
         3: .line 115
            aload 1 /* snapshot */
            areturn
        end local 1 // jdk.jfr.Recording snapshot
        end local 0 // jdk.jfr.FlightRecorder this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Ljdk/jfr/FlightRecorder;
            1    4     1  snapshot  Ljdk/jfr/Recording;

  public static void register(java.lang.Class<? extends jdk.jfr.Event>);
    descriptor: (Ljava/lang/Class;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Class eventClass
         0: .line 132
            aload 0 /* eventClass */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 133
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 3
         2: .line 134
            return
         3: .line 136
      StackMap locals:
      StackMap stack:
            aload 0 /* eventClass */
            invokestatic jdk.jfr.internal.Utils.ensureValidEventSubclass:(Ljava/lang/Class;)V
         4: .line 137
            invokestatic jdk.jfr.internal.MetadataRepository.getInstance:()Ljdk/jfr/internal/MetadataRepository;
            aload 0 /* eventClass */
            invokevirtual jdk.jfr.internal.MetadataRepository.register:(Ljava/lang/Class;)Ljdk/jfr/EventType;
            pop
         5: .line 138
            return
        end local 0 // java.lang.Class eventClass
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0  eventClass  Ljava/lang/Class<+Ljdk/jfr/Event;>;
    Signature: (Ljava/lang/Class<+Ljdk/jfr/Event;>;)V
    MethodParameters:
            Name  Flags
      eventClass  

  public static void unregister(java.lang.Class<? extends jdk.jfr.Event>);
    descriptor: (Ljava/lang/Class;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Class eventClass
         0: .line 154
            aload 0 /* eventClass */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 155
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 3
         2: .line 156
            return
         3: .line 158
      StackMap locals:
      StackMap stack:
            aload 0 /* eventClass */
            invokestatic jdk.jfr.internal.Utils.ensureValidEventSubclass:(Ljava/lang/Class;)V
         4: .line 159
            invokestatic jdk.jfr.internal.MetadataRepository.getInstance:()Ljdk/jfr/internal/MetadataRepository;
            aload 0 /* eventClass */
            invokevirtual jdk.jfr.internal.MetadataRepository.unregister:(Ljava/lang/Class;)V
         5: .line 160
            return
        end local 0 // java.lang.Class eventClass
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    6     0  eventClass  Ljava/lang/Class<+Ljdk/jfr/Event;>;
    Signature: (Ljava/lang/Class<+Ljdk/jfr/Event;>;)V
    MethodParameters:
            Name  Flags
      eventClass  

  public static jdk.jfr.FlightRecorder getFlightRecorder();
    descriptor: ()Ljdk/jfr/FlightRecorder;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=0
         0: .line 175
            ldc Ljdk/jfr/internal/PlatformRecorder;
            dup
            astore 0
            monitorenter
         1: .line 176
            invokestatic jdk.jfr.internal.Utils.checkAccessFlightRecorder:()V
         2: .line 177
            invokestatic jdk.jfr.internal.JVMSupport.ensureWithIllegalStateException:()V
         3: .line 178
            getstatic jdk.jfr.FlightRecorder.platformRecorder:Ljdk/jfr/FlightRecorder;
            ifnonnull 24
         4: .line 180
            new jdk.jfr.FlightRecorder
            dup
            new jdk.jfr.internal.PlatformRecorder
            dup
            invokespecial jdk.jfr.internal.PlatformRecorder.<init>:()V
            invokespecial jdk.jfr.FlightRecorder.<init>:(Ljdk/jfr/internal/PlatformRecorder;)V
            putstatic jdk.jfr.FlightRecorder.platformRecorder:Ljdk/jfr/FlightRecorder;
         5: .line 181
            goto 10
      StackMap locals: java.lang.Class
      StackMap stack: java.lang.IllegalStateException
         6: astore 1 /* ise */
        start local 1 // java.lang.IllegalStateException ise
         7: .line 182
            aload 1 /* ise */
            athrow
        end local 1 // java.lang.IllegalStateException ise
         8: .line 183
      StackMap locals:
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
         9: .line 184
            new java.lang.IllegalStateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Can't create Flight Recorder. "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* e */
            invokevirtual java.lang.Exception.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 1 /* e */
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.Exception e
        10: .line 188
      StackMap locals:
      StackMap stack:
            iconst_1
            putstatic jdk.jfr.FlightRecorder.initialized:Z
        11: .line 189
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.INFO:Ljdk/jfr/internal/LogLevel;
            ldc "Flight Recorder initialized"
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        12: .line 190
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            invokestatic jdk.jfr.internal.Logger.shouldLog:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;)Z
            ifeq 21
        13: .line 191
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "maxchunksize: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getMaxChunkSize:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc " bytes"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        14: .line 192
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "memorysize: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getMemorySize:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc " bytes"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        15: .line 193
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "globalbuffersize: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getGlobalBufferSize:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            ldc " bytes"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        16: .line 194
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "globalbuffercount: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getGlobalBufferCount:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        17: .line 195
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "dumppath: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getDumpPath:()Ljdk/jfr/internal/SecuritySupport$SafePath;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        18: .line 196
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "samplethreads: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getSampleThreads:()Z
            invokevirtual java.lang.StringBuilder.append:(Z)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        19: .line 197
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "stackdepth: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getStackDepth:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        20: .line 198
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.DEBUG:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "threadbuffersize: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Options.getThreadBufferSize:()J
            invokevirtual java.lang.StringBuilder.append:(J)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        21: .line 200
      StackMap locals:
      StackMap stack:
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.INFO:Ljdk/jfr/internal/LogLevel;
            invokestatic jdk.jfr.internal.Logger.shouldLog:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;)Z
            ifeq 23
        22: .line 201
            getstatic jdk.jfr.internal.LogTag.JFR:Ljdk/jfr/internal/LogTag;
            getstatic jdk.jfr.internal.LogLevel.INFO:Ljdk/jfr/internal/LogLevel;
            new java.lang.StringBuilder
            dup
            ldc "Repository base directory: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            invokestatic jdk.jfr.internal.Repository.getRepository:()Ljdk/jfr/internal/Repository;
            invokevirtual jdk.jfr.internal.Repository.getBaseLocation:()Ljdk/jfr/internal/SecuritySupport$SafePath;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic jdk.jfr.internal.Logger.log:(Ljdk/jfr/internal/LogTag;Ljdk/jfr/internal/LogLevel;Ljava/lang/String;)V
        23: .line 203
      StackMap locals:
      StackMap stack:
            getstatic jdk.jfr.FlightRecorder.platformRecorder:Ljdk/jfr/FlightRecorder;
            invokestatic jdk.jfr.internal.PlatformRecorder.notifyRecorderInitialized:(Ljdk/jfr/FlightRecorder;)V
        24: .line 175
      StackMap locals:
      StackMap stack:
            aload 0
            monitorexit
        25: goto 28
      StackMap locals:
      StackMap stack: java.lang.Throwable
        26: aload 0
            monitorexit
        27: athrow
        28: .line 206
      StackMap locals:
      StackMap stack:
            getstatic jdk.jfr.FlightRecorder.platformRecorder:Ljdk/jfr/FlightRecorder;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            7    8     1   ise  Ljava/lang/IllegalStateException;
            9   10     1     e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           4     5       6  Class java.lang.IllegalStateException
           4     5       8  Class java.lang.Exception
           1    25      26  any
          26    27      26  any
    Exceptions:
      throws java.lang.IllegalStateException, java.lang.SecurityException

  public static void addPeriodicEvent(java.lang.Class<? extends jdk.jfr.Event>, java.lang.Runnable);
    descriptor: (Ljava/lang/Class;Ljava/lang/Runnable;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // java.lang.Class eventClass
        start local 1 // java.lang.Runnable hook
         0: .line 228
            aload 0 /* eventClass */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 229
            aload 1 /* hook */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         2: .line 230
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 4
         3: .line 231
            return
         4: .line 234
      StackMap locals:
      StackMap stack:
            aload 0 /* eventClass */
            invokestatic jdk.jfr.internal.Utils.ensureValidEventSubclass:(Ljava/lang/Class;)V
         5: .line 235
            invokestatic jdk.jfr.internal.Utils.checkRegisterPermission:()V
         6: .line 236
            invokestatic java.security.AccessController.getContext:()Ljava/security/AccessControlContext;
            astore 2 /* acc */
        start local 2 // java.security.AccessControlContext acc
         7: .line 237
            aload 2 /* acc */
            aload 0 /* eventClass */
            invokestatic jdk.jfr.EventType.getEventType:(Ljava/lang/Class;)Ljdk/jfr/EventType;
            invokevirtual jdk.jfr.EventType.getPlatformEventType:()Ljdk/jfr/internal/PlatformEventType;
            aload 1 /* hook */
            invokestatic jdk.jfr.internal.RequestEngine.addHook:(Ljava/security/AccessControlContext;Ljdk/jfr/internal/PlatformEventType;Ljava/lang/Runnable;)V
         8: .line 238
            return
        end local 2 // java.security.AccessControlContext acc
        end local 1 // java.lang.Runnable hook
        end local 0 // java.lang.Class eventClass
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    9     0  eventClass  Ljava/lang/Class<+Ljdk/jfr/Event;>;
            0    9     1        hook  Ljava/lang/Runnable;
            7    9     2         acc  Ljava/security/AccessControlContext;
    Exceptions:
      throws java.lang.SecurityException
    Signature: (Ljava/lang/Class<+Ljdk/jfr/Event;>;Ljava/lang/Runnable;)V
    MethodParameters:
            Name  Flags
      eventClass  
      hook        

  public static boolean removePeriodicEvent(java.lang.Runnable);
    descriptor: (Ljava/lang/Runnable;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.Runnable hook
         0: .line 249
            aload 0 /* hook */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 250
            invokestatic jdk.jfr.internal.Utils.checkRegisterPermission:()V
         2: .line 251
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 4
         3: .line 252
            iconst_0
            ireturn
         4: .line 254
      StackMap locals:
      StackMap stack:
            aload 0 /* hook */
            invokestatic jdk.jfr.internal.RequestEngine.removeHook:(Ljava/lang/Runnable;)Z
            ireturn
        end local 0 // java.lang.Runnable hook
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  hook  Ljava/lang/Runnable;
    Exceptions:
      throws java.lang.SecurityException
    MethodParameters:
      Name  Flags
      hook  

  public java.util.List<jdk.jfr.EventType> getEventTypes();
    descriptor: ()Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // jdk.jfr.FlightRecorder this
         0: .line 268
            invokestatic jdk.jfr.internal.MetadataRepository.getInstance:()Ljdk/jfr/internal/MetadataRepository;
            invokevirtual jdk.jfr.internal.MetadataRepository.getRegisteredEventTypes:()Ljava/util/List;
            invokestatic java.util.Collections.unmodifiableList:(Ljava/util/List;)Ljava/util/List;
            areturn
        end local 0 // jdk.jfr.FlightRecorder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljdk/jfr/FlightRecorder;
    Signature: ()Ljava/util/List<Ljdk/jfr/EventType;>;

  public static void addListener(jdk.jfr.FlightRecorderListener);
    descriptor: (Ljdk/jfr/FlightRecorderListener;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // jdk.jfr.FlightRecorderListener changeListener
         0: .line 286
            aload 0 /* changeListener */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 287
            invokestatic jdk.jfr.internal.Utils.checkAccessFlightRecorder:()V
         2: .line 288
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 4
         3: .line 289
            return
         4: .line 291
      StackMap locals:
      StackMap stack:
            aload 0 /* changeListener */
            invokestatic jdk.jfr.internal.PlatformRecorder.addListener:(Ljdk/jfr/FlightRecorderListener;)V
         5: .line 292
            return
        end local 0 // jdk.jfr.FlightRecorderListener changeListener
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    6     0  changeListener  Ljdk/jfr/FlightRecorderListener;
    MethodParameters:
                Name  Flags
      changeListener  

  public static boolean removeListener(jdk.jfr.FlightRecorderListener);
    descriptor: (Ljdk/jfr/FlightRecorderListener;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // jdk.jfr.FlightRecorderListener changeListener
         0: .line 310
            aload 0 /* changeListener */
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 311
            invokestatic jdk.jfr.internal.Utils.checkAccessFlightRecorder:()V
         2: .line 312
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 4
         3: .line 313
            iconst_0
            ireturn
         4: .line 316
      StackMap locals:
      StackMap stack:
            aload 0 /* changeListener */
            invokestatic jdk.jfr.internal.PlatformRecorder.removeListener:(Ljdk/jfr/FlightRecorderListener;)Z
            ireturn
        end local 0 // jdk.jfr.FlightRecorderListener changeListener
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    5     0  changeListener  Ljdk/jfr/FlightRecorderListener;
    MethodParameters:
                Name  Flags
      changeListener  

  public static boolean isAvailable();
    descriptor: ()Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 333
            invokestatic jdk.jfr.internal.JVMSupport.isNotAvailable:()Z
            ifeq 2
         1: .line 334
            iconst_0
            ireturn
         2: .line 336
      StackMap locals:
      StackMap stack:
            invokestatic jdk.jfr.internal.JVM.getJVM:()Ljdk/jfr/internal/JVM;
            invokevirtual jdk.jfr.internal.JVM.isAvailable:()Z
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static boolean isInitialized();
    descriptor: ()Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 349
            getstatic jdk.jfr.FlightRecorder.initialized:Z
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  jdk.jfr.internal.PlatformRecorder getInternal();
    descriptor: ()Ljdk/jfr/internal/PlatformRecorder;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // jdk.jfr.FlightRecorder this
         0: .line 353
            aload 0 /* this */
            getfield jdk.jfr.FlightRecorder.internal:Ljdk/jfr/internal/PlatformRecorder;
            areturn
        end local 0 // jdk.jfr.FlightRecorder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Ljdk/jfr/FlightRecorder;
}
SourceFile: "FlightRecorder.java"
InnerClasses:
  public final SafePath = jdk.jfr.internal.SecuritySupport$SafePath of jdk.jfr.internal.SecuritySupport
/

java/ 15/ jdk.jfr/jdk/jfr/FlightRecorder.class
