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 final class org.apache.cassandra.utils.JavaUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.cassandra.utils.JavaUtils
  super_class: java.lang.Object
{
  private static final org.slf4j.Logger logger;
    descriptor: Lorg/slf4j/Logger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 28
            ldc Lorg/apache/cassandra/utils/JavaUtils;
            invokestatic org.slf4j.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/slf4j/Logger;
            putstatic org.apache.cassandra.utils.JavaUtils.logger:Lorg/slf4j/Logger;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static boolean supportExitOnOutOfMemory(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=3, args_size=1
        start local 0 // java.lang.String jreVersion
         0: .line 40
            aload 0 /* jreVersion */
            invokestatic org.apache.cassandra.utils.JavaUtils.parseJavaVersion:(Ljava/lang/String;)I
            istore 1 /* version */
        start local 1 // int version
         1: .line 42
            iload 1 /* version */
            bipush 8
            if_icmple 3
         2: .line 43
            iconst_1
            ireturn
         3: .line 45
      StackMap locals: int
      StackMap stack:
            aload 0 /* jreVersion */
            invokestatic org.apache.cassandra.utils.JavaUtils.parseUpdateForPre9Versions:(Ljava/lang/String;)I
            istore 2 /* update */
        start local 2 // int update
         4: .line 47
            iload 1 /* version */
            bipush 7
            if_icmpne 5
            iload 2 /* update */
            bipush 101
            if_icmpge 7
      StackMap locals: int
      StackMap stack:
         5: iload 1 /* version */
            bipush 8
            if_icmpne 6
            iload 2 /* update */
            bipush 92
            if_icmpge 7
      StackMap locals:
      StackMap stack:
         6: iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         7: iconst_1
         8: ireturn
        end local 2 // int update
        end local 1 // int version
         9: .line 49
      StackMap locals: java.lang.String
      StackMap stack: java.lang.Exception
            astore 1 /* e */
        start local 1 // java.lang.Exception e
        10: .line 51
            getstatic org.apache.cassandra.utils.JavaUtils.logger:Lorg/slf4j/Logger;
            new java.lang.StringBuilder
            dup
            ldc "Some JRE information could not be retrieved for the JRE version: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* jreVersion */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 1 /* e */
            invokeinterface org.slf4j.Logger.error:(Ljava/lang/String;Ljava/lang/Throwable;)V
        11: .line 53
            iconst_1
            ireturn
        end local 1 // java.lang.Exception e
        end local 0 // java.lang.String jreVersion
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   12     0  jreVersion  Ljava/lang/String;
            1    9     1     version  I
            4    9     2      update  I
           10   12     1           e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0     2       9  Class java.lang.Exception
           3     8       9  Class java.lang.Exception
    MethodParameters:
            Name  Flags
      jreVersion  

  private static int parseJavaVersion(java.lang.String);
    descriptor: (Ljava/lang/String;)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.lang.String jreVersion
         0: .line 69
            aload 0 /* jreVersion */
            ldc "1."
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 3
         1: .line 71
            aload 0 /* jreVersion */
            iconst_2
            iconst_3
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 1 /* version */
        start local 1 // java.lang.String version
         2: .line 72
            goto 9
        end local 1 // java.lang.String version
         3: .line 76
      StackMap locals:
      StackMap stack:
            aload 0 /* jreVersion */
            bipush 46
            invokevirtual java.lang.String.indexOf:(I)I
            istore 2 /* index */
        start local 2 // int index
         4: .line 78
            iload 2 /* index */
            ifge 8
         5: .line 81
            aload 0 /* jreVersion */
            bipush 45
            invokevirtual java.lang.String.indexOf:(I)I
            istore 2 /* index */
         6: .line 82
            iload 2 /* index */
            ifge 8
         7: .line 83
            aload 0 /* jreVersion */
            invokevirtual java.lang.String.length:()I
            istore 2 /* index */
         8: .line 85
      StackMap locals: java.lang.String top int
      StackMap stack:
            aload 0 /* jreVersion */
            iconst_0
            iload 2 /* index */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 1 /* version */
        end local 2 // int index
        start local 1 // java.lang.String version
         9: .line 87
      StackMap locals: java.lang.String java.lang.String
      StackMap stack:
            aload 1 /* version */
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            ireturn
        end local 1 // java.lang.String version
        end local 0 // java.lang.String jreVersion
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   10     0  jreVersion  Ljava/lang/String;
            2    3     1     version  Ljava/lang/String;
            9   10     1     version  Ljava/lang/String;
            4    9     2       index  I
    MethodParameters:
            Name  Flags
      jreVersion  

  private static int parseUpdateForPre9Versions(java.lang.String);
    descriptor: (Ljava/lang/String;)I
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.lang.String jreVersion
         0: .line 101
            aload 0 /* jreVersion */
            bipush 45
            invokevirtual java.lang.String.indexOf:(I)I
            istore 1 /* dashSeparatorIndex */
        start local 1 // int dashSeparatorIndex
         1: .line 102
            iload 1 /* dashSeparatorIndex */
            ifle 3
         2: .line 103
            aload 0 /* jreVersion */
            iconst_0
            iload 1 /* dashSeparatorIndex */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 0 /* jreVersion */
         3: .line 105
      StackMap locals: int
      StackMap stack:
            aload 0 /* jreVersion */
            bipush 95
            invokevirtual java.lang.String.indexOf:(I)I
            istore 2 /* updateSeparatorIndex */
        start local 2 // int updateSeparatorIndex
         4: .line 106
            iload 2 /* updateSeparatorIndex */
            ifge 6
         5: .line 107
            iconst_0
            ireturn
         6: .line 109
      StackMap locals: int
      StackMap stack:
            aload 0 /* jreVersion */
            iload 2 /* updateSeparatorIndex */
            iconst_1
            iadd
            invokevirtual java.lang.String.substring:(I)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            ireturn
        end local 2 // int updateSeparatorIndex
        end local 1 // int dashSeparatorIndex
        end local 0 // java.lang.String jreVersion
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0    7     0            jreVersion  Ljava/lang/String;
            1    7     1    dashSeparatorIndex  I
            4    7     2  updateSeparatorIndex  I
    MethodParameters:
            Name  Flags
      jreVersion  

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.utils.JavaUtils this
         0: .line 112
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 114
            return
        end local 0 // org.apache.cassandra.utils.JavaUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/cassandra/utils/JavaUtils;
}
SourceFile: "JavaUtils.java"