These interfaces and classes are required as part of the Java Platform, Standard Edition (Java SE), but there is no requirement to provide any tools implementing them.
Unless explicitly allowed, all methods in this package might
throw a NullPointerException if given a
null argument or if given a
list or collection containing
null elements. Similarly, no method may return
null unless explicitly allowed.
This package is the home of the Java programming language compiler framework. This framework allows clients of the framework to locate and run compilers from programs. The framework also provides Service Provider Interfaces (SPI) for structured access to diagnostics (DiagnosticListener) as well as a file abstraction for overriding file access (JavaFileManager and JavaFileObject). See JavaCompiler for more details on using the SPI.
There is no requirement for a compiler at runtime. However, if a default compiler is provided, it can be located using the ToolProvider, for example:
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
It is possible to provide alternative compilers or tools through the service provider mechanism.
For example, if
com.vendor.VendorJavaCompiler is a
provider of the
JavaCompiler tool then its jar file
would contain the file
META-INF/services/javax.tools.JavaCompiler. This file would
contain the single line:
If the jar file is on the class path, VendorJavaCompiler can be located using code like this:
JavaCompiler compiler = ServiceLoader.load(JavaCompiler.class).iterator().next();
Interface Summary Interface Description Diagnostic<S>Interface for diagnostics from tools. DiagnosticListener<S>Interface for receiving diagnostics from tools. DocumentationToolInterface to invoke Java programming language documentation tools from programs. DocumentationTool.DocumentationTaskInterface representing a future for a documentation task. FileObjectFile abstraction for tools. JavaCompilerInterface to invoke Java programming language compilers from programs. JavaCompiler.CompilationTaskInterface representing a future for a compilation task. JavaFileManagerFile manager for tools operating on Java programming language source and class files. JavaFileManager.LocationInterface for locations of file objects. JavaFileObjectFile abstraction for tools operating on Java programming language source and class files. OptionCheckerInterface for recognizing options. StandardJavaFileManager StandardJavaFileManager.PathFactoryFactory to create
Pathobjects from strings.
ToolCommon interface for tools that can be invoked from a program.
Class Summary Class Description DiagnosticCollector<S>Provides an easy way to collect diagnostics in a list. ForwardingFileObject<F extends FileObject>Forwards calls to a given file object. ForwardingJavaFileManager<M extends JavaFileManager>Forwards calls to a given file manager. ForwardingJavaFileObject<F extends JavaFileObject>Forwards calls to a given file object. SimpleJavaFileObjectProvides simple implementations for most methods in JavaFileObject. ToolProviderProvides methods for locating tool providers, for example, providers of compilers.