Java Uuid Format

Matcher) is used to search through a text for multiple occurrences of a regular expression. Convert a UUID from ABAP internal format to ISO 11578 / IETF Draft format. A UUID is generated by an algorithm with values that are based on a machine's network address. They are simple and easy to use and work great for developers. if i have to leverage this @Jsonformat for formatting a date field with in a Java object , how can i do it ? thanks again. It is primarily used for transmitting data between a web application and a server. The data type uuid stores Universally Unique Identifiers (UUID) as defined by RFC 4122, ISO/IEC 9834-8:2005, and related standards. As you've seen, you can also use UUIDs as primary keys and let Hibernate handle the value generation. The challenge, however, is that when using JPA, it's not trivial to manipulate UUIDs, as your Entity definitions require strict mapping of data types. Java String format() The java string format() method returns the formatted string by given locale, format and arguments. com is for Java. There is a system call "makeuuid" available on solaris. Request parameters. Hashing functionality for both strings and binary data using SHA1, SHA384, SHA512, MD2, MD5, and HAVAL. NET Guid DTO properties in Java and use the ServiceStack Utils methods to store the Guid properties as strings so that when we communicate with other systems that need these IDs, we are just referring to them in their String format which would then. The UUIDs generated by this site are provided AS IS without warranty of any kind, not even the warranty that the generated UUIDs are actually unique. Write a JavaScript function to create a UUID identifier. UUID and java. variant(); int version = uuid. You can cast to/from decimal types like you would do with other numeric types. The following example is a valid UUID string: ba209999-0c6c-11d2-97cf-00c04f8eea45. See the NOTICE file distributed with this work for additional information regarding copyright ownership. (Note, PostgreSQL is returning uuid types as java classes), so converting to a string is sometimes necessary, thought the format is obviously a guid and not a uuid. version(); These are 5 different versions for variant 2 UUIDs: Time Based (UUIDv1), DCE Security (UUIDv2), Name Based (UUIDv3 and UUIDv5), Random (UUIDv4). UUID; public class RandomStringUUID { public static void main(String[] args) { // // Creating a random UUID (Universally unique identifier). Introduction to PostgreSQL UUID type. As you observed, you never modify the instance, you just assign a new instance to your member. UUID 16 bytes Application developers should define a UUID specific to their app and deployment use case. 0_01/jre\ gtint :tL;tH=f %Jn! 7@N@ Wrote%dof%d if($compAFM){ -ktkeyboardtype =zL" filesystem-list \renewcommand{\theequation}{\#} L;==_1 =JU* L9cHf lp. hwinfo is not installed by defualt so you may need to install it first:. Without the optional argument, a version 4 random UUID will be generated; with that argument, a version 5 UUID will be generated, using a fixed namespace UUID of 91461c99-f89d-49d2-af96-d8e2e14e9b58. Single object encoding specification. Summary: in this tutorial, you will learn about the PostgreSQL UUID data type and how to generate UUID values using a supplied module. Help me find the bug. UUIDs are 128 bit values and encoded as 36 character identifiers. The version field is necessary to ensure that two GUID generation algorithms do not accidentally generate the same GUID. The following code examples show how to use java. Standard Java library does not contain UUID generator which can generate timestamp dependable UUID strings, only Versions 3 and 4 due to lack of means to access MAC addresses using pure Java. It is a 128-bit integer number used to identify resources. Java has a java. A UUID can be generated from privileged Mozilla code using nsIUUIDGenerator. Java import java. (Java) Generate UUID. One one end, we have Java which understands UUID as a built-in class (java. I'm getting "No QueryString binder found for type Option[java. Few Java examples to show you how to generate a random alphanumeric String, with a fixed length. The Bluetooth ® Service Discovery Protocol (SDP) specification defines a way to represent a range of UUIDs (which are nominally 128 bits) in a shorter form. Motivation One of the main reasons for using UUIDs is that no centralized authority is required to administer them (although one format uses IEEE 802 node identifiers, others do not). of the “biospecimen__bio__bcr_aliquot_uuid” concatenated with the acronym of the considered experiment, i. Connection strings for SQL Server 2005. Class Overview. if i have to leverage this @Jsonformat for formatting a date field with in a Java object , how can i do it ? thanks again. We will use java. Use the assignment UUID you get after attaching the IP. A Globally Unique Identifier (GUID) is an identifier designed to be a unique reference. 0 contained. PrePersist event listener:. fromString(inputUUID) Program: generate UUID or GUID from String in java. * Explanation of Benefit resource: id: 1. There are three Conversion Functions in MySQL: CONVERT, CAST, BINARY. Java Uuid Generator (JUG) JUG is a set of Java classes for working with UUIDs: generating UUIDs using any of standard methods, outputting efficiently, sorting and so on. The bit layout described above is valid only for a UUID with a variant value of 2, which indicates the Leach-Salz variant. Major 2 bytes Further specifies a specific iBeacon and use case. Java_uuid Filter Configuration Options edit. Two UUID values are expected to be distinct, even they are generated on two independent servers. OBJ File Characteristics: ASCII (there is also a binary version, for which an "MOD" extension is used in the file name);. JavaScript provides number of predefined functions (methods) to format some text. UUID On Input Row Tab You can use the On Input Row tab to define the behavior of the transformation when it receives an input row. Detailed Description UUID is an immutable representation of a 128-bit universally unique identifier (). device/aaeon/upboard device/amlogic/yukawa Bug: 122486287. The Base UUID is used for calculating 128-bit UUIDs from “short UUIDs” (uuid16 and uuid32) as described in the SDP Specification. I got a Bluetooth challenge at my job! After many research and sleepless hours — here’s a brief overview of the key components and how to use them to connect and read data from a BLE sensor. DecimalFormat. There are list indices for the following types of mailing lists:. 0 implicitRules. Return Value. It generates UUIDs according to the UUID specification (RFC-4122) (also see Wikipedia UUID page for more explanation). This tool uses the mcrypt_encrypt() function in PHP, so for more infos about the parameters used check the manual. I've heard of mojang api but I haven't found any documentation for java. Write a JavaScript function to create a UUID identifier. fromString accepts input that does not match expected format Relates : JDK-8006627 - UUID to/from String performance should be improved by reducing object allocations. The term nil indicates anything that is zero, blank, empty, or uninitialized. See documentation for SimpleDateFormat for format pattern use. Log in; Print; I have pasted below a java class which implements a UUID generator for Sql Server 2000: protected String. There are multiple, variant layouts of UUIDs, but this class is based upon variant 2 of RFC 4122, the Leach-Salz variant. Continuing Vincent Partington's blog series about JPA implementation patterns, I would like to add the following. For example: mount /dev/foo /dir. Logs are displayed uuid,version and it's varient. This class was introduced in JDK 1. A UUID is an identifier that is unique across both space and time 1, with respect to the space of all UUIDs. but we don't know how to get uuid. You may see the term UUID tossed about (universally unique identifier), a nitpicky word for those whose numbers are unique not only within the globe, but throughout the entire universe. Example: Generate string UUID with fully-specified options. 4) Write the groovy script in the mule flow as :. In Java 7 (and earlier), you may use the java. Specification Version 1. You can vote up the examples you like and your votes will be used in our system to product more good examples. This class can be used to model alternate variants, but most of the methods will be unsupported in those cases; see each method for details. The Apache commons id project has a UUID Java class that is similar to the delivered Java 1. but i won't able to find its man page or its source codemakeuuid binary appears to work only as root, but it will then generate a properly formatted UUID, in the "Registry Format" from windows guidgen. 1, as well as 1. For example:. UUID as PersistentProxy and PrimaryKey 783190 Jul 6, 2010 7:10 PM ( in response to Greybird-Oracle ) Hi Mark, that's exactly what I needed to know, thanks for clearing it up!. Java has the utility class java. The bit layout described above is valid only for a UUID with a variant value of 2, which indicates the Leach-Salz variant. The latter option requires providing an implementation of the org. The current sequence number is passed in as the only parameter. png file on the root of the project, any CC or sugestiong will be gladly received. The format is : [2 chars for each byte in 4 byte ip address]: [8 char unique string]: [16 char from time in hex]: [8 char from count] Code :. A GUID or UUID should be in below format. Using the g global object and attaching a function call to it, we can do this fairly close to the real value, without needing to add a lot of extra code to every route just by using the before_request decorator. This class can be used to model alternate variants, but most of the methods will be unsupported in those cases; see each method for details. I found a bunch of blog entries about using UUID versus integer primary keys. Empty UUIDs are referred to as nil UUIDs rather than NULL UUIDs. Make sure that the player you wish to reset is logged out of the server. Validate a GUID(UUID) I'm been given the task to validate some data using XSLT. All trades from naturally-generated villagers in Java Edition reward XP orbs. This class represents a 128-bit UUID value. Minecraft 1. 2: Attribute 'uuid' is not allowed to appear in element 'jasperReport' So WHY is 4. The Crunchbase API is a read-only RESTful service that enables approved developers to leverage the same data that powers www. This time will be different than the previous tutorial because we will use online Groovy code runner. A UUID is defined as an unsigned integer whose value can range from [0 to 2 128-1]. pl BUG: b/32916152 assets/android-studio-ux-assets Bug: 32992167 brillo/manifest cts_drno_filter Parent project for CTS projects that requires Dr. NET to check the GUID/UUID. UUID 16 bytes Application developers should define a UUID specific to their app and deployment use case. java /* Derby - Class org. Next, the code creates a queue named MyQueue and sends a random message more than 256 KB in size to the queue; the message is stored in the Amazon S3 bucket. Oracle VM Linux 5 I am not finding above mentioned snapshort. You can do Name to UUID with an ez bukkit way but Im going to show you the API way!. Returns buffer, if specified, otherwise the string form of the UUID. 0 we introduced many new features; among those, three new functions that ease and enhance the support for working with UUIDs. This looks like: { "uuid": "cef0cbf3-6458-4f13-a418-ee4d7e7505dd" } When you make new questions, assessments, etc, you will need to add a UUID to the the JSON file. Chosen as the default simply because it is generally more efficient from storage perspective. The Java programming language is a simple, modern, general-purpose, object-oriented programming language. is the UUID of the external service you want to add for outgoing file transfers. See documentation for SimpleDateFormat for format pattern use. You can also see disk uuid by running Linux Disk utility after the Linux CD boot up. It works fine for me, never just copy/paste everything, do it yourself and in an IDE and you will find no problem at all. Forum Rules and Guidelines (REQUIRED READING) This forum contains the Rules and Guidelines governing the FreeBSD Forums. SimpleDateFormat. So, if you install the hard drive containing the partitions on another Linux computer, the partitions will have the same UUID as before. Phone +49 (7161) 98897-0. A Version 4 UUID is a universally unique identifier that is generated using random numbers. FYI: I have seen the two statements in Java code in activity for generating the UUID as com. 4: > Set all the other bits to randomly (or pseudo-randomly) chosen values. I needed to check what version of Java was installed on a Mac before running my program, so with the help of stackoverflow and a few other resources I pulled together the following bash script which checks to see if the version of Java is greater than 1. Convert Microsoft GUID to Java UUID Raw. The default way in JPA for primary keys is to use the @GeneratedValue annotation with the strategy attribute set to one of AUTO, IDENTITY, SEQUENCE, or TABLE. Random [a-ZA-Z0-9] 1. Enter the following code on the Import Packages tab: import java. Build powerful applications and integrate Crunchbase into your web and mobile applications with the REST API. java /* Derby - Class org. Output data We provide the user with all the data sets properly converted in BED format. You can go there with your own name to check this. Addresses issue #481. An example UUID created and displayed in a Java application would be shown as follows: 00010203-0405-4007-8009-0A0B0C0D0E0F The MongoDB Java driver (version 2. That UUID is the best way to ID a machine, it exists in Windows, Mac and many other platforms. Text from Guid to string and again string to Guid. The identifiers generated by UUID are actually universally unique. If health check is enabled, then the container can have three states: starting – Initial status when the container is still starting. These examples are extracted from open source projects. There are multiple, variant layouts of UUIDs, but this class is based upon variant 2 of RFC 4122, the Leach-Salz variant. Hibernate offers many identifier strategies to choose from and for UUID identifiers we have three options: the assigned generator accompanied by the application logic UUID generation; the hexadecimal “uuid” string generator; the more flexible “uuid2” generator, allowing us to use java. It is primarily used for transmitting data between a web application and a server. Java also permits you to write code that is very easy to understand. de or Amazon. ) In the example, M is 1, and N is a (10xx 2), meaning that this is a version-1, variant-1 UUID; that is, a time-based DCE/RFC 4122 UUID. That's good. Standard Java library does not contain UUID generator which can generate timestamp dependable UUID strings, only Versions 3 and 4 due to lack of means to access MAC addresses using pure Java. The Cassandra JDBC driver will return a hexadecimal representation of the UUID rather than a human-readable date. If not provided, MongoDB generates a random UUID in RFC 4122 v4 format. If you did not include uuid parameter at all, the PubNub JavaScript SDK will automatically generate a UUID for you and save it to the browser's localStorage under the key name [subKey]+"uuid". As there is much to cover in this new long awaited API I think it worth few posts with some examples. It generates UUIDs according to the UUID specification (RFC-4122) (also see Wikipedia UUID page for more explanation). Overview Package Class Use Source Tree Index Deprecated About. Contributions are more than welcome!. RFC 4122 defines a system for creating universally unique identifiers for resources in a way that does not require a central registrar. See the NOTICE file distributed with this work for additional information regarding copyright ownership. We need to assign a unique ID (UUID) for each of these records and are looking to use java. I will cover the core methods of the Java Matcher class in this tutorial. Its data type is also UUID. format() method, it uses default locale by calling Locale. hey everyone I have a label lblUID on which i am populating id of db table which has data type unique identifier. This forum covers all Gentoo-related software not officially supported by Gentoo. The following code examples are extracted from open source projects. You can use classpath relative resource references, fully qualified url references (including file:/// URLs), class names or package names. Single object encoding specification. 3) Create random string in Java using UUID class Java provides UUID (Universally unique identifier) class which can be used to generate random string. replaceAllSelenium catch popup on close browser. 0 solution. should have been more specific. java uuid 生成 guid是一个128位长的数字,一般用16进制表示。算法的核心思想是结合机器的网卡、当地时间、一个随即数来生成guid。. 2) Find the java class which relates to the exception message. The value is a 128-bit number represented as a utf8 string of five hexadecimal numbers in aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee format:. There are several types of UUID, and while this class can be used to store them, only the Leach-Salz (variant 2) UUID specified in RFC-4122 will give meaningful results from the method calls. GNU Classpath (0. Oracle VM Linux 5 I am not finding above mentioned snapshort. The randomUUID() method is used to retrieve a type 4 (pseudo randomly generated) UUID. Algorithm for generating Random GUID : UUID GUID « Development Class « Java that the algorithm for * generating random GUIDs be open for inspection and. UUID / GUID (Universally / Globally Unique Identifier) is frequently use in programming. It is also possible to provide the UUID via a sysinfo specification. A Recipe for Adding Correlation IDs in Java Microservices describes using base-62 encoded numbers instead of UUIDs. 6 and above, Mojang uses a new UUID format. Note: The default node id (the last 12 digits in the UUID) is generated once, randomly, on process startup, and then remains unchanged for the duration of the process. If health check is enabled, then the container can have three states: starting – Initial status when the container is still starting. Useful formatting sequences are: # insert the number, with no leading zeros or spaces 000. public static UUID randomUUID() Parameters. The uuid number of the Linux partition will be displayed. The default way in JPA for primary keys is to use the @GeneratedValue annotation with the strategy attribute set to one of AUTO, IDENTITY, SEQUENCE, or TABLE. Please note that using an index on randomly generated data will result on poor performance once there are millions of rows in a table. Java - Is it safe to do deepCopy of UUID field as this. 0 AllegroGraph Server: General Changes Rfe16197 - Fix "UPI is not present in string dictionary" error during import. RFC 4122 A UUID URN Namespace July 2005 2. Source: Python’s strftime documentation. The Apache commons id project has a UUID Java class that is similar to the delivered Java 1. Sign in page used by multiple NYC Department of Education websites for logging in. The format for version 0 is shown below. It is also possible to provide the UUID via a sysinfo specification. 0 solution. The following example shows the usage of java. The following script uses the datastore provider to find and access VMDK files. With our new proto3 language version, you can also work with Dart, Go, Ruby, and C#, with more languages to come. More in-depth documentation can be found at https:. java uuid 生成 guid是一个128位长的数字,一般用16进制表示。算法的核心思想是结合机器的网卡、当地时间、一个随即数来生成guid。. Added 3 acceptance tests for multiple languages to check that the format is properly modeled and can be serialized/deserialized. Being all good boys and girls here, we had them identified by UUIDs. This class is a Parcelable wrapper around UUID which is an immutable representation of a 128-bit universally unique identifier. An agent adding logging to your java programs at runtime The uptime of home. Next, the code creates a queue named MyQueue and sends a random message more than 256 KB in size to the queue; the message is stored in the Amazon S3 bucket. This site is an API reference for Drupal, generated from comments embedded in the source code. Conversions can be conducted between string, date, and numeric type of data. Who knows, if you dig through your application's PeopleCode, you might find an undocumented method for generating GUID's ;). Help me find the bug. Parameters include name to describe the service name, and the security parameters authenticate, authorize, and encrypt. Still the following disclaimer applies: Disclaimer: The provided UUID (GUID) is provided AS IS without warranty of any kind, not even the warranty that the generated. Forum Rules and Guidelines (REQUIRED READING) This forum contains the Rules and Guidelines governing the FreeBSD Forums. Text from Guid to string and again string to Guid. Java UUID, Java GUID, Java UUID Generator, Java generate guid, java-uuid-generator maven, guid generator, java uuid example, randomUUID, compareTo, equals. SimpleDateFormat format string. Can be used in cryptography and hashing applications. The generated UUIDs follow the version 4 definition in RFC 4122 and will be represented in standard hexadecimal string format, e. FreeSWITCH always converts to L16 (linear 16-bit), so that's why you get this result. How to Generate an unique ID in Java. SimpleDateFormat. I ran this test on a local MSSQLExpress 2014 box and the results are very similar but with the Sequential UUID showing less fragmentation than the traditional Identity model. According to the RFC4122 version 4 complaint. uuid4() is the recommended function. BasicUUIDFactory. on the code there are some symbols forgotten like ” which are essential for strings. These examples are extracted from open source projects. Maps the UUID to a byte[] using java. The following code examples are extracted from open source projects. Two of the most common examples for Java developers are log4j and logback. When it comes down to it, a UUID is really just a randomly generated string. Your one page, instant guide to getting up and running with Oracle Partitioning!. So that means a second cost to using UUIDs in a database: Dragging those UUID values across the chasm of JDBC + SQL. UUIDs in JSON files. We would like to convert string to corresponding universal unique identifier (UUID) or Globally unique identifier (GUID). > A correctly generated v4 UUID (S4. could you please tell me the solution of it. fromString(inputUUID) Program: generate UUID or GUID from String in java. Base64-encoded GUIDs only take 22 bytes, and are no harder to type/remember than regular GUIDs. [Hadoop] Initialization failed for block pool Block pool The formatting of the NameNode causes the inconsistency between the clusterID in the NameNode and in the. The fourth number preserves temporal uniqueness in case the timestamp value loses monotonicity (for example, due to daylight saving time). where {service1_uuid}, {service2_uuid}, etc. FreeSWITCH always converts to L16 (linear 16-bit), so that's why you get this result. There is an easy way to convert it! This requires internet! First we going to use the Mojang API to get the player data! The URL's we need are to convert Name to UUID. scala-uuid provides sanity compatible unsigned ordering by default, compare and contrast: scala> new java. You can click to vote up the examples that are useful to you. The problem is in between. Following is the declaration for java. In languages like Python and Java, to make a GUID, all you need to do is import a module and you are good to go. The default way in JPA for primary keys is to use the @GeneratedValue annotation with the strategy attribute set to one of AUTO, IDENTITY, SEQUENCE, or TABLE. 95): Frames | No Frames: Source for java. Java_uuid Filter Configuration Options edit. UUID idOne= new com. UUID and java. but when you want to get the same UUID, then it would be a little bit tricky. 3 Octets - 'AES' 1 Octet - 0x00 (Version) 1 Octet - File size modulo 16 in least significant bit positions 16 Octets - Initialization Vector (IV) nn Octets - Encrypted message (2^64 octets max) 32 Octets - HMAC Thus, the footprint of the file is at least 53 octets. randomUUID()) to generate random number. All functions in the UUID module are compatible with the available versions of UUID. What is the appropriate column type for UUID? Based on the mysql manual, a UUID is a 128-bit number. Hibernate offers many identifier strategies to choose from and for UUID identifiers we have three options: the assigned generator accompanied by the application logic UUID generation; the hexadecimal "uuid" string generator; the more flexible "uuid2" generator, allowing us to use java. Alternatively, we can use String. UUID On Input Row Tab You can use the On Input Row tab to define the behavior of the transformation when it receives an input row. The Java programming language is a simple, modern, general-purpose, object-oriented programming language. You can click to vote up the examples that are useful to you. A new partition on the same disk, or a partition on a new disk will have a new GUID UUID. Demonstrates how to generate a random UUID string (also known as GUID) having the standard UUID format such as "de305d54-75b4-431b-adb2-eb6b9e546014". UUID is the Universally Unique Identifier used when setting up a service on a server. Changed in version 3. hey everyone I have a label lblUID on which i am populating id of db table which has data type unique identifier. Java String format() The java string format() method returns the formatted string by given locale, format and arguments. 0, OleDbConnection. Convert Microsoft GUID to Java UUID Raw. The randomUUID() method is used to retrieve a type 4 (pseudo randomly generated) UUID. 1 now] was released a couple of weeks ago and I wanted to highlight the major feature in this release: JENKINS-32727, or replay. There are four different basic types of UUIDs: time-based, DCE security, name-based, and randomly generated UUIDs. On Linux, you can use the uuidgen program, but you can't always use Linux, or somehow it isn't installed, so an online tools can come in handy. Having a basic familiarity with the programming language used on the job is a prerequisite for quickly getting up to speed. UUID class, the method UUID. All file types, file format descriptions, and software programs listed on this page have been individually researched and verified by the FileInfo team. Java Code Examples for javax. Enter the following code on the Import Packages tab: import java. If the optional start number is not specified, the path name is used as is. The bit layout described above is valid only for a UUID with a variant value of 2, which indicates the Leach-Salz variant. This class is a Parcelable wrapper around UUID which is an immutable representation of a 128-bit universally unique identifier. Algorithm for generating Random GUID : UUID GUID « Development Class « Java that the algorithm for * generating random GUIDs be open for inspection and. Java Uuid Generator (JUG) JUG is a set of Java classes for working with UUIDs: generating UUIDs using any of standard methods, outputting efficiently, sorting and so on. There is an easy way to convert it! This requires internet! First we going to use the Mojang API to get the player data! The URL's we need are to convert Name to UUID. ) In the example, M is 1, and N is a (10xx 2), meaning that this is a version-1, variant-1 UUID; that is, a time-based DCE/RFC 4122 UUID. This blog post demonstrates this process. UUID public UUID(long uuidValue) Creates a UUID object from long value uuidValue. He has consulted for a number of blue chip companies and has been exposed to the folowing sectors: Utilities, Telecommunications, Insurance, Media, Investment Banking, Leisure, Legal, CRM, Pharmaceuticals, Interactive Gaming, Mobile Communications, Online Services. 6 and above, Mojang uses a new UUID format. In Log4j 2 Layouts return a byte array. Java’s UUID class compares UUID’s using signed comparisons, in a way that will provide opposite results than you might expect and incompatible with other languages. randomUUID() that will return a UUID Object. I'm here to attempt to put your mind at ease and show you how iBeacons can be read and detected in Android 4. A Universally Unique Identifier (UUID) is a 128-bit identifier described in Internet Engineering Task Force RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace. if i have to leverage this @Jsonformat for formatting a date field with in a Java object , how can i do it ? thanks again. Some of its usage are for creating random file names, session id in web application, transaction id and for record’s primary keys in database replacing the sequence or auto generated number. An agent adding logging to your java programs at runtime The uptime of home. It is generally used if we have to display number in textfield because everything is displayed as a string in form. Address Scope:. You can run the above wmic command to get it. While the regex I provided will reject UUID v1-3 (and even 5!), I never thought it would make a difference. Apparently, Hibernate just "handles it" for you. For those of you not checking their Updates tab obsessively, Pipeline 1. UUIDs can be generated from the command line with the uuid command. Java's UUID. UUID() returns a value that conforms to UUID version 1 as described in RFC 4122. Start the VM, then go to its console and the Debian installer should be running and ready to install on the guest. There are multiple, variant layouts of UUIDs, but this class is based upon variant 2 of RFC 4122, the Leach-Salz variant. A valid UUID is. If you've exported the ACP from one repo and are then importing into another repo, you should clear the destination of the same content the first time - but subsequent attempts at overwriting should be fine, since they'll share the same UUID. The Java Matcher class has a lot of useful methods. Next, the code creates a queue named MyQueue and sends a random message more than 256 KB in size to the queue; the message is stored in the Amazon S3 bucket. Can be used in cryptography and hashing applications. toString, and will throw IllegalArgumentException if the input does not conform to that format.