[SOLVED] Maven settings.xml Password Special Characters – 1 Simple Solution!

[SOLVED] Maven settings.xml password special characters - 1 simple solution
Photo by Jason Leung on Unsplash
Share this post and Earn Free Points!

In this post I will show you how to solve problem:

In this post I will show you how to solve problem: Maven settings.xml password special characters



Apache Maven is a build automation tool for Java-based projects. It is used to manage the build process, dependencies, and documentation for a project.

Maven is designed to be easy to use and provides a consistent build system that allows developers to automate common tasks such as compiling code, running tests, and packaging the project for deployment. Maven is based on the concept of a project object model (POM), which is an XML" file that specifies the project’s dependencies, build plugins, and other information needed to build the project.

One of the key benefits of Maven" is its ability to manage dependencies. Maven can automatically download and manage the dependencies needed for a project from remote repositories, such as the Central Repository, saving developers the time and effort of manually managing dependencies.

Maven also provides a number of built-in plugins for common tasks, such as compiling code, running tests, and creating documentation. These plugins can be extended or customized as needed to meet the specific needs of a project.

Maven settings.xml File

The settings.xml file in Apache Maven" is a configuration file that specifies global settings for the Maven build system. It is typically located in the ~/.m2 directory on Unix-like systems, or in the %USERPROFILE%\.m2 directory on Windows".

The settings.xml file can be used to specify a wide range of configuration options for Maven, including the following:

  • Repositories: Maven repositories are used to store and manage artifacts, such as libraries and dependencies, that are used in Maven builds. The settings.xml file can be used to specify the locations of the repositories that Maven should use when resolving dependencies.
  • Mirrors: Mirrors are used to redirect requests for artifacts to a different repository. The settings.xml file can be used to specify the locations of mirrors that Maven should use when resolving dependencies.
  • Profiles: Profiles are used to specify different configurations for different environments or build types. The settings.xml file can be used to define profiles and specify the active profile for a build.
  • Plugin Groups: Plugin groups are used to specify a common prefix for a group of plugins. The settings.xml file can be used to define plugin groups and simplify the specification of plugin coordinates in POM files.
  • Servers: The settings.xml file can be used to specify the credentials and other information needed to access servers, such as artifact repositories and continuous integration servers.

Overall, the settings.xml file is an important part of the Maven build system, and is used to configure a wide range of settings and options for Maven builds.

What is XML?

The Extensible Markup Language (XML") is a markup language and file format that may be used to store, transport, and recreate arbitrary data. It establishes a set of guidelines for encoding documents in a human- and machine-readable manner. The XML" 1.0 Specification of the World Wide Web Consortium and numerous other related specifications—all of which are free open" standards—define XML".

XML’s design goals stress simplicity, universality, and cross-platform usability.

It’s a textual data format with robust Unicode compatibility for a variety of human languages. XML" is frequently used for the representation of arbitrary data structures, such as those used in online services, despite its design focusing on documents.

Special Characters In Password

Using special characters in passwords can make them more secure by increasing the number of possible combinations and making it harder for attackers to guess or crack the password. Some examples of special characters that can be used in passwords include:

  • !: exclamation point
  • @: at symbol
  • #: pound or hash symbol
  • $: dollar sign
  • %: percent sign
  • ^: caret
  • &: ampersand
  • *: asterisk
  • (: left parenthesis
  • ): right parenthesis
  • -: hyphen or dash
  • _: underscore
  • +: plus sign
  • =: equal sign
  • {: left curly brace
  • }: right curly brace
  • [: left square bracket
  • ]: right square bracket
  • |: vertical bar or pipe
  • \: backslash
  • /: forward slash
  • ~: tilde
  • ?: question mark

It is important to note that not all systems and applications may support the use of all special characters in passwords. It is also important to choose a password that is easy to remember, but difficult for others to guess or crack. Some best practices for creating secure passwords include using a combination of upper and lower case letters, numbers, and special characters, and avoiding using personal information or common words in the password.

Maven Escape Special Characters

The problem itself is only that we are using the XML" format, which has its limitations on the characters that are allowed.

Maven settings.xml Password With Special Characters

When you define a connection to a proxy server or to (Maven settings.xml password special characters), for example, an artifact repository that contains names specifically such as:

  • < (less-than)
  • > (greater-than)
  • & (ampersand)
  • ‘ (apostrophe or single quote)
  • ” (double-quote)


XML Escape Characters

Of course, we can change the password to one that does not contain special characters, but a much better solution will be to use the so-called escape characters. Below is a table on how to replace a particular special character.

BigData-ETL: Screenshot from 2019 10 13 14 42 06


Overall, Maven is a widely used and powerful build automation tool that is popular in the Java" development community and is well-suited for large-scale projects with complex build and dependency management requirements.

The truth is that we should convert special characters to avoid characters wherever we have XML". This will avoid unpleasant surprises when suddenly we come across one of these signs in the data.

in Apache Maven", the settings.xml file is a configuration file that is used to specify global settings for the Maven build system. This file can be used to specify the locations of repositories, the active build profiles, and other information needed by Maven.

If you need to specify a password in the settings.xml file that includes special characters, you can use the same special characters that are allowed in any other password and escape them and everything will be working.

Could You Please Share This Post? 
I appreciate It And Thank YOU! :)
Have A Nice Day!

How useful was this post?

Click on a star to rate it!

Average rating 4.9 / 5. Vote count: 1829

No votes so far! Be the first to rate this post.

As you found this post useful...

Follow us on social media!

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?