Gradle memory aid

gradle commands vs. maven commands

Maven Command	Gradle Command	Explanation
mvn clean	gradle clean	Cleans the build artifacts and temporary files.
mvn compile	gradle compileJava	Compiles the Java source code.
mvn test	gradle test	Runs unit tests.
mvn package	gradle assemble	Packages the compiled code into a distributable.
mvn install	gradle install	Installs the artifact in the local repository.
mvn deploy	gradle publish	Publishes the artifact to a remote repository.
mvn dependency:tree	gradle dependencies	Displays project dependencies as a tree.
mvn spring-boot:run	gradle bootRun	Runs a Spring Boot application.
mvn clean install	gradle clean build	Cleans and then installs the artifact.
mvn tomcat:run	gradle bootRun	Runs a Tomcat server with the web application.
mvn site	gradle site	Generates project site documentation.
mvn eclipse:eclipse	gradle eclipse	Generates Eclipse IDE project files.
mvn dependency:purge-local-repository	N/A	Removes project dependencies from local repository.
mvn validate	gradle check	Validates the project (syntax, configurations).

troubleshoot

IDLE/Lock problem

Error:

# command 
gradle assemble

# error message
Starting a Gradle Daemon, 1 incompatible and 3 stopped Daemons could not be reused, use --status for details

FAILURE: Build failed with an exception.

* What went wrong:
Gradle could not start your build.
> Cannot create service of type BuildSessionActionExecutor using method LauncherServices$ToolingBuildSessionScopeServices.createActionExecutor() as there is a problem with parameter #21 of type FileSystemWatchingInformation.
   > Cannot create service of type BuildLifecycleAwareVirtualFileSystem using method VirtualFileSystemServices$GradleUserHomeServices.createVirtualFileSystem() as there is a problem with parameter #7 of type GlobalCacheLocations.
      > Cannot create service of type GlobalCacheLocations using method GradleUserHomeScopeServices.createGlobalCacheLocations() as there is a problem with parameter #1 of type List<GlobalCache>.
         > Could not create service of type FileAccessTimeJournal using GradleUserHomeScopeServices.createFileAccessTimeJournal().
            > Timeout waiting to lock journal cache (/Users/XXX/.gradle/caches/journal-1). It is currently in use by another Gradle instance.
              Owner PID: 33272
              Our PID: 33401
              Owner Operation: 
              Our operation: 
              Lock file: /Users/XXX/.gradle/caches/journal-1/journal-1.lock

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

Solution:

gralde --stop
gradle assemble 

#or when this occurs "Timeout waiting to lock journal cache (/Users/wej/.gradle/caches/journal-1). It is currently in use by another Gradle instance."
find ~/.gradle -type f -name "*.lock" -delete