Package org.bitcoinj.core

Class Utils

java.lang.Object

org.bitcoinj.core.Utils

public class Utils
extends Object

A collection of various utility methods that are helpful for working with the Bitcoin protocol. To enable debug logging from the library, run with -Dbitcoinj.logging=true on your command line.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_INITIAL_ARRAY_LENGTH	Max initial size of variable length arrays and ArrayLists that could be attacked.
static final com.google.common.base.Joiner	SPACE_JOINER	Deprecated. Use @link java.util.StringJoiner} or a direct Guava dependency
static final com.google.common.base.Splitter	WHITESPACE_SPLITTER	Deprecated. Use String.split(String) or a direct Guava dependency

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static String	toString(List<byte[]> stack)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SPACE_JOINER

@Deprecated
public static final com.google.common.base.Joiner SPACE_JOINER

Deprecated.

Use @link java.util.StringJoiner} or a direct Guava dependency

Joiner for concatenating words with a space inbetween.

WHITESPACE_SPLITTER

@Deprecated
public static final com.google.common.base.Splitter WHITESPACE_SPLITTER

Deprecated.

Use String.split(String) or a direct Guava dependency

Splitter for splitting words on whitespaces.

MAX_INITIAL_ARRAY_LENGTH

public static final int MAX_INITIAL_ARRAY_LENGTH

Max initial size of variable length arrays and ArrayLists that could be attacked. Avoids this attack: Attacker sends a msg indicating it will contain a huge number (e.g. 2 billion) elements (e.g. transaction inputs) and forces bitcoinj to try to allocate a huge piece of the memory resulting in OutOfMemoryError.

See Also:

• Constant Field Values

Constructor Details

Utils

public Utils()

Method Details

toString

public static String toString(List<byte[]> stack)