A .gitignore file suitable for development with Java, Maven, Gradle, IntelliJ, Android Studio on a MacOS

.gitignore

# Reference: https://github.com/github/gitignore
# From: https://gist.github.com/edesdan/6bb43343740bcd54ef0f56a384a2f66f

######################
###### Mac OS X ######
######################

# Folder view configuration files
.DS_Store
Desktop.ini

# Thumbnail cache files
._*
Thumbs.db

# Files that might appear on external disks
.Spotlight-V100
.Trashes

######################
######   Java   ######
######################

# Compiled class file
*.class

# Log file
*.log

# BlueJ files
*.ctxt

# Mobile Tools for Java (J2ME)
.mtj.tmp/

# Package Files #
*.jar
*.war
*.ear
*.zip
*.tar.gz
*.rar

# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*

######################
######  Gradle  ######
######################

.gradle
build/

# Ignore Gradle GUI config
gradle-app.setting

# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
!gradle-wrapper.jar

# Cache of project
.gradletasknamecache

# # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
# gradle/wrapper/gradle-wrapper.properties

######################
###### Intellij ######
######################

# Created by https://www.gitignore.io/api/intellij
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839

# User-specific stuff:
.idea/**/workspace.xml
.idea/**/tasks.xml
.idea/dictionaries

# Sensitive or high-churn files:
.idea/**/dataSources/
.idea/**/dataSources.ids
.idea/**/dataSources.xml
.idea/**/dataSources.local.xml
.idea/**/sqlDataSources.xml
.idea/**/dynamic.xml
.idea/**/uiDesigner.xml

# Gradle:
.idea/**/gradle.xml
.idea/**/libraries

# CMake
cmake-build-debug/

# Mongo Explorer plugin:
.idea/**/mongoSettings.xml

## File-based project format:
*.iws

## Plugin-specific files:

# IntelliJ
/out/

# mpeltonen/sbt-idea plugin
.idea_modules/

# JIRA plugin
atlassian-ide-plugin.xml

# Cursive Clojure plugin
.idea/replstate.xml

# Crashlytics plugin (for Android Studio and IntelliJ)
com_crashlytics_export_strings.xml
crashlytics.properties
crashlytics-build.properties
fabric.properties

### Intellij Patch ###
# Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721

# *.iml
# modules.xml
# .idea/misc.xml
# *.ipr

# Sonarlint plugin
.idea/sonarlint

# End of https://www.gitignore.io/api/intellij

######################
######   Maven  ######
######################

**/target/
pom.xml.tag
pom.xml.releaseBackup
pom.xml.versionsBackup
pom.xml.next
release.properties
dependency-reduced-pom.xml
buildNumber.properties
.mvn/timing.properties

# Avoid ignoring Maven wrapper jar file (.jar files are usually ignored)
!/.mvn/wrapper/maven-wrapper.jar