org.gradle.api.tasks
Interfaces 
AntBuilderAware
ConventionValue
GroovySourceSet
ScalaSourceSet
SourceSet
SourceSetContainer
SourceSetOutput
TaskCollection
TaskContainer
TaskDependency
TaskInputs
TaskOutputs
TaskState
VerificationTask
WorkResult
Classes 
AbstractCopyTask
Copy
Delete
Directory
Exec
GradleBuild
JavaExec
SourceTask
Sync
TaskValidationException
Upload
Exceptions 
StopActionException
StopExecutionException
TaskExecutionException
TaskInstantiationException
Annotation Types 
Input
InputDirectory
InputFile
InputFiles
Nested
Optional
OutputDirectories
OutputDirectory
OutputFile
OutputFiles
SkipWhenEmpty
TaskAction