https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
public final class com.google.common.graph.NetworkBuilder<N, E> extends com.google.common.graph.AbstractGraphBuilder<N>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.google.common.graph.NetworkBuilder
  super_class: com.google.common.graph.AbstractGraphBuilder
{
  boolean allowsParallelEdges;
    descriptor: Z
    flags: (0x0000) 

  com.google.common.graph.ElementOrder<? super E> edgeOrder;
    descriptor: Lcom/google/common/graph/ElementOrder;
    flags: (0x0000) 
    Signature: Lcom/google/common/graph/ElementOrder<-TE;>;

  com.google.common.base.Optional<java.lang.Integer> expectedEdgeCount;
    descriptor: Lcom/google/common/base/Optional;
    flags: (0x0000) 
    Signature: Lcom/google/common/base/Optional<Ljava/lang/Integer;>;

  private void <init>(boolean);
    descriptor: (Z)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // boolean directed
         0: .line 59
            aload 0 /* this */
            iload 1 /* directed */
            invokespecial com.google.common.graph.AbstractGraphBuilder.<init>:(Z)V
         1: .line 53
            aload 0 /* this */
            iconst_0
            putfield com.google.common.graph.NetworkBuilder.allowsParallelEdges:Z
         2: .line 54
            aload 0 /* this */
            invokestatic com.google.common.graph.ElementOrder.insertion:()Lcom/google/common/graph/ElementOrder;
            putfield com.google.common.graph.NetworkBuilder.edgeOrder:Lcom/google/common/graph/ElementOrder;
         3: .line 55
            aload 0 /* this */
            invokestatic com.google.common.base.Optional.absent:()Lcom/google/common/base/Optional;
            putfield com.google.common.graph.NetworkBuilder.expectedEdgeCount:Lcom/google/common/base/Optional;
         4: .line 60
            return
        end local 1 // boolean directed
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    5     0      this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    5     1  directed  Z
    MethodParameters:
          Name  Flags
      directed  

  public static com.google.common.graph.NetworkBuilder<java.lang.Object, java.lang.Object> directed();
    descriptor: ()Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 64
            new com.google.common.graph.NetworkBuilder
            dup
            iconst_1
            invokespecial com.google.common.graph.NetworkBuilder.<init>:(Z)V
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Signature: ()Lcom/google/common/graph/NetworkBuilder<Ljava/lang/Object;Ljava/lang/Object;>;

  public static com.google.common.graph.NetworkBuilder<java.lang.Object, java.lang.Object> undirected();
    descriptor: ()Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 69
            new com.google.common.graph.NetworkBuilder
            dup
            iconst_0
            invokespecial com.google.common.graph.NetworkBuilder.<init>:(Z)V
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Signature: ()Lcom/google/common/graph/NetworkBuilder<Ljava/lang/Object;Ljava/lang/Object;>;

  public static <N, E> com.google.common.graph.NetworkBuilder<N, E> from(com.google.common.graph.Network<N, E>);
    descriptor: (Lcom/google/common/graph/Network;)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.google.common.graph.Network network
         0: .line 81
            new com.google.common.graph.NetworkBuilder
            dup
            aload 0 /* network */
            invokeinterface com.google.common.graph.Network.isDirected:()Z
            invokespecial com.google.common.graph.NetworkBuilder.<init>:(Z)V
         1: .line 82
            aload 0 /* network */
            invokeinterface com.google.common.graph.Network.allowsParallelEdges:()Z
            invokevirtual com.google.common.graph.NetworkBuilder.allowsParallelEdges:(Z)Lcom/google/common/graph/NetworkBuilder;
         2: .line 83
            aload 0 /* network */
            invokeinterface com.google.common.graph.Network.allowsSelfLoops:()Z
            invokevirtual com.google.common.graph.NetworkBuilder.allowsSelfLoops:(Z)Lcom/google/common/graph/NetworkBuilder;
         3: .line 84
            aload 0 /* network */
            invokeinterface com.google.common.graph.Network.nodeOrder:()Lcom/google/common/graph/ElementOrder;
            invokevirtual com.google.common.graph.NetworkBuilder.nodeOrder:(Lcom/google/common/graph/ElementOrder;)Lcom/google/common/graph/NetworkBuilder;
         4: .line 85
            aload 0 /* network */
            invokeinterface com.google.common.graph.Network.edgeOrder:()Lcom/google/common/graph/ElementOrder;
            invokevirtual com.google.common.graph.NetworkBuilder.edgeOrder:(Lcom/google/common/graph/ElementOrder;)Lcom/google/common/graph/NetworkBuilder;
         5: .line 81
            areturn
        end local 0 // com.google.common.graph.Network network
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    6     0  network  Lcom/google/common/graph/Network<TN;TE;>;
    Signature: <N:Ljava/lang/Object;E:Ljava/lang/Object;>(Lcom/google/common/graph/Network<TN;TE;>;)Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    MethodParameters:
         Name  Flags
      network  

  public com.google.common.graph.NetworkBuilder<N, E> allowsParallelEdges(boolean);
    descriptor: (Z)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // boolean allowsParallelEdges
         0: .line 93
            aload 0 /* this */
            iload 1 /* allowsParallelEdges */
            putfield com.google.common.graph.NetworkBuilder.allowsParallelEdges:Z
         1: .line 94
            aload 0 /* this */
            areturn
        end local 1 // boolean allowsParallelEdges
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0    2     0                 this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    2     1  allowsParallelEdges  Z
    Signature: (Z)Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    MethodParameters:
                     Name  Flags
      allowsParallelEdges  

  public com.google.common.graph.NetworkBuilder<N, E> allowsSelfLoops(boolean);
    descriptor: (Z)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // boolean allowsSelfLoops
         0: .line 103
            aload 0 /* this */
            iload 1 /* allowsSelfLoops */
            putfield com.google.common.graph.NetworkBuilder.allowsSelfLoops:Z
         1: .line 104
            aload 0 /* this */
            areturn
        end local 1 // boolean allowsSelfLoops
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    2     1  allowsSelfLoops  Z
    Signature: (Z)Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    MethodParameters:
                 Name  Flags
      allowsSelfLoops  

  public com.google.common.graph.NetworkBuilder<N, E> expectedNodeCount(int);
    descriptor: (I)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // int expectedNodeCount
         0: .line 113
            aload 0 /* this */
            iload 1 /* expectedNodeCount */
            invokestatic com.google.common.graph.Graphs.checkNonNegative:(I)I
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokestatic com.google.common.base.Optional.of:(Ljava/lang/Object;)Lcom/google/common/base/Optional;
            putfield com.google.common.graph.NetworkBuilder.expectedNodeCount:Lcom/google/common/base/Optional;
         1: .line 114
            aload 0 /* this */
            areturn
        end local 1 // int expectedNodeCount
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    2     1  expectedNodeCount  I
    Signature: (I)Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    MethodParameters:
                   Name  Flags
      expectedNodeCount  

  public com.google.common.graph.NetworkBuilder<N, E> expectedEdgeCount(int);
    descriptor: (I)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // int expectedEdgeCount
         0: .line 123
            aload 0 /* this */
            iload 1 /* expectedEdgeCount */
            invokestatic com.google.common.graph.Graphs.checkNonNegative:(I)I
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokestatic com.google.common.base.Optional.of:(Ljava/lang/Object;)Lcom/google/common/base/Optional;
            putfield com.google.common.graph.NetworkBuilder.expectedEdgeCount:Lcom/google/common/base/Optional;
         1: .line 124
            aload 0 /* this */
            areturn
        end local 1 // int expectedEdgeCount
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    2     0               this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    2     1  expectedEdgeCount  I
    Signature: (I)Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    MethodParameters:
                   Name  Flags
      expectedEdgeCount  

  public <N1 extends N> com.google.common.graph.NetworkBuilder<N1, E> nodeOrder(com.google.common.graph.ElementOrder<N1>);
    descriptor: (Lcom/google/common/graph/ElementOrder;)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // com.google.common.graph.ElementOrder nodeOrder
         0: .line 129
            aload 0 /* this */
            invokevirtual com.google.common.graph.NetworkBuilder.cast:()Lcom/google/common/graph/NetworkBuilder;
            astore 2 /* newBuilder */
        start local 2 // com.google.common.graph.NetworkBuilder newBuilder
         1: .line 130
            aload 2 /* newBuilder */
            aload 1 /* nodeOrder */
            invokestatic com.google.common.base.Preconditions.checkNotNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.google.common.graph.ElementOrder
            putfield com.google.common.graph.NetworkBuilder.nodeOrder:Lcom/google/common/graph/ElementOrder;
         2: .line 131
            aload 2 /* newBuilder */
            areturn
        end local 2 // com.google.common.graph.NetworkBuilder newBuilder
        end local 1 // com.google.common.graph.ElementOrder nodeOrder
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    3     1   nodeOrder  Lcom/google/common/graph/ElementOrder<TN1;>;
            1    3     2  newBuilder  Lcom/google/common/graph/NetworkBuilder<TN1;TE;>;
    Signature: <N1:TN;>(Lcom/google/common/graph/ElementOrder<TN1;>;)Lcom/google/common/graph/NetworkBuilder<TN1;TE;>;
    MethodParameters:
           Name  Flags
      nodeOrder  

  public <E1 extends E> com.google.common.graph.NetworkBuilder<N, E1> edgeOrder(com.google.common.graph.ElementOrder<E1>);
    descriptor: (Lcom/google/common/graph/ElementOrder;)Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.google.common.graph.NetworkBuilder this
        start local 1 // com.google.common.graph.ElementOrder edgeOrder
         0: .line 136
            aload 0 /* this */
            invokevirtual com.google.common.graph.NetworkBuilder.cast:()Lcom/google/common/graph/NetworkBuilder;
            astore 2 /* newBuilder */
        start local 2 // com.google.common.graph.NetworkBuilder newBuilder
         1: .line 137
            aload 2 /* newBuilder */
            aload 1 /* edgeOrder */
            invokestatic com.google.common.base.Preconditions.checkNotNull:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.google.common.graph.ElementOrder
            putfield com.google.common.graph.NetworkBuilder.edgeOrder:Lcom/google/common/graph/ElementOrder;
         2: .line 138
            aload 2 /* newBuilder */
            areturn
        end local 2 // com.google.common.graph.NetworkBuilder newBuilder
        end local 1 // com.google.common.graph.ElementOrder edgeOrder
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
            0    3     1   edgeOrder  Lcom/google/common/graph/ElementOrder<TE1;>;
            1    3     2  newBuilder  Lcom/google/common/graph/NetworkBuilder<TN;TE1;>;
    Signature: <E1:TE;>(Lcom/google/common/graph/ElementOrder<TE1;>;)Lcom/google/common/graph/NetworkBuilder<TN;TE1;>;
    MethodParameters:
           Name  Flags
      edgeOrder  

  public <N1 extends N, E1 extends E> com.google.common.graph.MutableNetwork<N1, E1> build();
    descriptor: ()Lcom/google/common/graph/MutableNetwork;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.google.common.graph.NetworkBuilder this
         0: .line 143
            new com.google.common.graph.ConfigurableMutableNetwork
            dup
            aload 0 /* this */
            invokespecial com.google.common.graph.ConfigurableMutableNetwork.<init>:(Lcom/google/common/graph/NetworkBuilder;)V
            areturn
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    Signature: <N1:TN;E1:TE;>()Lcom/google/common/graph/MutableNetwork<TN1;TE1;>;

  private <N1 extends N, E1 extends E> com.google.common.graph.NetworkBuilder<N1, E1> cast();
    descriptor: ()Lcom/google/common/graph/NetworkBuilder;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.graph.NetworkBuilder this
         0: .line 148
            aload 0 /* this */
            areturn
        end local 0 // com.google.common.graph.NetworkBuilder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/graph/NetworkBuilder<TN;TE;>;
    Signature: <N1:TN;E1:TE;>()Lcom/google/common/graph/NetworkBuilder<TN1;TE1;>;
}
Signature: <N:Ljava/lang/Object;E:Ljava/lang/Object;>Lcom/google/common/graph/AbstractGraphBuilder<TN;>;
SourceFile: "NetworkBuilder.java"
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.Beta()