Apache Ant Core 1.10.14 · org.apache.tools.ant.AntClassLoader

Modifier and Type	Class and Description
private class	AntClassLoader.ResourceEnumeration An enumeration of all resources of a given name found within the classpath of this class loader.

Modifier and Type	Field and Description
private static final int	BUFFER_SIZE The size of buffers to be used in this classloader.
private static final ZipLong	EOCD_SIG
private static final FileUtils	FILE_UTILS
private boolean	ignoreBase Whether or not this classloader will ignore the base classloader if it can't find a class.
private static final boolean	IS_ATLEAST_JAVA9
private boolean	isContextLoaderSaved Whether or not the context loader is currently saved.
private Hashtable<File, JarFile>	jarFiles A hashtable of zip files opened by the classloader (File to JarFile).
private final Vector<String>	loaderPackages These are the package roots that are to be loaded by this class loader regardless of whether the parent class loader is being searched first or not.
private static final Class<T>[]	MR_JARFILE_CTOR_ARGS
private static final Object	MR_JARFILE_CTOR_RUNTIME_VERSION_VAL
private static final int	NUMBER_OF_STRINGS Number of array elements in a test array of strings
private ClassLoader	parent Hides java.lang.ClassLoader.parent. The parent class loader, if one is given or can be determined.
private boolean	parentFirst Indicates whether the parent class loader should be consulted before trying to load with this class loader.
private final Vector<File>	pathComponents The components of the classpath that the classloader searches for classes.
private static Map<String, String>	pathMap Static map of jar file/time to manifest class-path entries
private Project	project The project to which this class loader belongs.
private ClassLoader	savedContextLoader The context loader saved when setting the thread's current context loader.
private static final ZipLong	SINGLE_SEGMENT_SPLIT_MARKER
private final Vector<String>	systemPackages These are the package roots that are to be loaded by the parent class loader regardless of whether the parent class loader is being searched first or not.

Access	Constructor and Description
public	AntClassLoader(final ClassLoader the parent for this classloader. parent, final Project The project to which this classloader is to belong. project, final Path The classpath to use to load classes. classpath) Create an Ant ClassLoader for a given project, with a parent classloader and an initial classpath.
public	AntClassLoader() Create an Ant Class Loader
public	AntClassLoader(final Project The project to which this classloader is to belong. Must not be `null`. project, final Path The classpath to use to load the classes. This is combined with the system classpath in a manner determined by the value of ${build.sysclasspath}. May be `null`, in which case no path elements are set up to start with. classpath) Creates a classloader for the given project using the classpath given.
public	AntClassLoader(final ClassLoader The parent classloader to which unsatisfied loading attempts are delegated. May be `null`, in which case the classloader which loaded this class is used as the parent. parent, final Project The project to which this classloader is to belong. Must not be `null`. project, final Path the classpath to use to load the classes. May be `null`, in which case no path elements are set up to start with. classpath, final boolean If `true`, indicates that the parent classloader should be consulted before trying to load the a class through this loader. parentFirst) Creates a classloader for the given project using the classpath given.
public	AntClassLoader(final Project The project to which this classloader is to belong. Must not be `null`. project, final Path The classpath to use to load the classes. May be `null`, in which case no path elements are set up to start with. classpath, final boolean If `true`, indicates that the parent classloader should be consulted before trying to load the a class through this loader. parentFirst) Creates a classloader for the given project using the classpath given.
public	AntClassLoader(final ClassLoader The parent classloader to which unsatisfied loading attempts are delegated. May be `null`, in which case the classloader which loaded this class is used as the parent. parent, final boolean If `true`, indicates that the parent classloader should be consulted before trying to load the a class through this loader. parentFirst) Creates an empty class loader.

Method Summary

Modifier and Type	Method and Description
public void	addJavaLibraries() add any libraries that come with different java versions here
public void	addLoaderPackageRoot(final String The root of all packages to be included. Should not be `null`. packageRoot) Adds a package root to the list of packages which must be loaded using this loader.
public void	addPathComponent(final File the jar file or directory to add. file) Add a path component.
public void	addPathElement(final String The path element to add. Must not be `null`. pathElement) Adds an element to the classpath to be searched.
protected void	addPathFile(final File the file which is to be added to the path for this class loader pathComponent) Add a file to the path.
public void	addSystemPackageRoot(final String The root of all packages to be included. Should not be `null`. packageRoot) Adds a package root to the list of packages which must be loaded on the parent loader.
private static Enumeration<URL>	append(Enumeration<URL> one, Enumeration<URL> two)
public void	buildFinished(final BuildEvent the buildFinished event event) Implements org.apache.tools.ant.BuildListener.buildFinished. Cleans up any resources held by this classloader at the end of a build.
public void	buildStarted(final BuildEvent the buildStarted event event) Implements org.apache.tools.ant.BuildListener.buildStarted. Empty implementation to satisfy the BuildListener interface.
public synchronized void	cleanup() Cleans up any resources held by this classloader.
public void	close() Implements java.io.Closeable.close. Closes this stream and releases any system resources associated with it.
protected Class<?>	Returns: the Class instance created from the given data defineClassFromData(final File the container from which the class data has been read may be a directory or a jar/zip file. container, final byte[] the bytecode data for the class classData, final String the name of the class classname) Define a class given its bytes
protected void	definePackage(final File the file containing the class definition. container, final String the class name of for which the package information is to be determined. className) Define the package information associated with a class.
protected void	definePackage(final File the jar file containing the manifest container, final String the name of the package being defined. packageName, final Manifest the jar's manifest manifest) Define the package information when the class comes from a jar with a manifest
private Class<?>	Returns: the required Class object findBaseClass(final String The name of the class to be loaded. Must not be `null`. name) Finds a system class (which should be loaded from the same classloader as the Ant core).
public Class<?>	Returns: the required Class object findClass(final String The name of the class to be loaded. Must not be `null`. name) Overrides java.lang.ClassLoader.findClass. Searches for and load a class on the classpath of this class loader.
private Class<?>	Returns: the required Class object findClassInComponents(final String The name of the class to be loaded. Must not be `null`. name) Finds a class on the given classpath.
protected URL	Returns: A `URL` object for reading the resource, or `null` if the resource could not be found findResource(final String The resource name name) Overrides java.lang.ClassLoader.findResource. Finds the resource with the given name.
protected Enumeration<URL>	Returns: an enumeration of URLs for the resources findResources(final String The resource name to search for. Must not be `null`. name) Overrides java.lang.ClassLoader.findResources. Returns an enumeration of URLs representing all the resources with the given name by searching the class loader's classpath.
protected Enumeration<URL>	Returns: an enumeration of URLs for the resources findResources(final String The resource name to search for. Must not be `null`. name, final boolean whether to skip searching the parent first - will be false if the method is invoked from `getResources(String)` or `getNamedResources(String)` and true if the method is invoked from `findResources(String)`. skipParent) Returns an enumeration of URLs representing all the resources with the given name by searching the class loader's classpath.
public Class<?>	Returns: the required Class object forceLoadClass(final String The name of the class to be loaded. Must not be `null`. classname) Loads a class through this class loader even if that class is available on the parent classpath.
public Class<?>	Returns: the required Class object forceLoadSystemClass(final String The name of the class to be loaded. Must not be `null`. classname) Loads a class through this class loader but defer to the parent class loader.
private Certificate[]	Returns: the entry's certificates or null is the container is not a jar or it has no certificates. getCertificates(final File the File from which to read the entry container, final String the entry of which the certificates are requested entry) Get the certificates for a given jar entry, if it is indeed a jar.
private String	Returns: the classname in filesystem format (eg java/lang/Integer.class) getClassFilename(final String The class name in dot format (eg java.lang.Integer). Must not be `null`. classname) Converts the class dot notation to a filesystem equivalent for searching purposes.
private Class<?>	Returns: the Class object read from the stream. getClassFromStream(final InputStream The stream from which the class is to be read. Must not be `null`. stream, final String The name of the class in the stream. Must not be `null`. classname, final File the file or directory containing the class. container) Reads a class definition from a stream.
public String	Returns: the classpath used for this classloader, with elements separated by the path separator for the system. getClasspath() Returns the classpath this classloader will consult.
public ClassLoader	Returns: classloader getConfiguredParent() Gets the parent as has been specified in the constructor or via setParent.
private Manifest	Returns: the jar's manifest or null is the container is not a jar or it has no manifest. getJarManifest(final File the File from which a manifest is required. container) Get the manifest from the given jar, if it is indeed a jar and it has a manifest
public Enumeration<URL>	Returns: possible URLs as enumeration getNamedResources(final String name of the resource name) Finds all the resources with the given name.
public URL	Returns: a URL for reading the resource, or `null` if the resource could not be found or the caller doesn't have adequate privileges to get the resource. getResource(final String The name of the resource for which a stream is required. Must not be `null`. name) Overrides java.lang.ClassLoader.getResource. Finds the resource with the given name.
public InputStream	Returns: a stream to the required resource or `null` if the resource cannot be found on the loader's classpath. getResourceAsStream(final String The name of the resource for which a stream is required. Must not be `null`. name) Overrides java.lang.ClassLoader.getResourceAsStream. Returns a stream to read the requested resource name.
public Enumeration<URL>	getResources(String The resource name name) Overrides java.lang.ClassLoader.getResources. Finds all the resources with the given name.
private InputStream	Returns: a stream to the required resource or `null` if the resource cannot be found in the given file. getResourceStream(final File the file (directory or jar) in which to search for the resource. Must not be `null`. file, final String The name of the resource for which a stream is required. Must not be `null`. resourceName) Returns an inputstream to a given resource in the given file which may either be a directory or a zip file.
protected URL	Returns: a stream to the required resource or `null` if the resource cannot be found in the given file object. getResourceURL(final File The file (directory or jar) in which to search for the resource. Must not be `null`. file, final String The name of the resource for which a stream is required. Must not be `null`. resourceName) Returns the URL of a given resource in the given file which may either be a directory or a zip file.
private ClassLoader	Returns: the root classloader of AntClassLoader. getRootLoader() Used for isolated resource searching.
private URL	Returns: A `URL` object for reading the resource, or `null` if the resource could not be found getUrl(String File to find name) Finds a matching file by iterating through path components.
public static void	initializeClass(final Class<?> The class to initialize. Must not be `null`. theClass) Deprecated since 1.6.x. Use Class.forName with initialize=true instead. Forces initialization of a class in a JDK 1.1 compatible, albeit hacky way.
protected boolean	Returns: true if the file is in the class path isInPath(final File the file which is to be checked component) Indicate if the given file is in this loader's path
private boolean	Returns: whether or not the parent classloader should be checked for a resource before this one is. isParentFirst(final String The name of the resource to check. Must not be `null`. resourceName) Tests whether or not the parent classloader should be checked for a resource before this one.
private static boolean	isZip(final File file)
private InputStream	Returns: a stream to the named resource, or `null` if the resource cannot be found. loadBaseResource(final String The name of the system resource to load. Must not be `null`. name) Finds a system resource (which should be loaded from the parent classloader).
protected synchronized Class<?>	Returns: the required Class object loadClass(final String The name of the class to be loaded. Must not be `null`. classname, final boolean `true` if all classes upon which this class depends are to be loaded. resolve) Overrides java.lang.ClassLoader.loadClass. Loads a class with this class loader.
private InputStream	Returns: a stream to the required resource or `null` if the resource cannot be found on the loader's classpath. loadResource(final String The name of the resource for which a stream is required. Must not be `null`. name) Returns a stream to read the requested resource name from this loader.
protected void	log(final String The message to log. Should not be `null`. message, final int The logging priority of the message. priority) Logs a message through the project object if one has been provided.
public void	messageLogged(final BuildEvent the messageLogged event event) Implements org.apache.tools.ant.BuildListener.messageLogged. Empty implementation to satisfy the BuildListener interface.
public static AntClassLoader	Returns: AntClassLoader newAntClassLoader(final ClassLoader ClassLoader parent, final Project Project project, final Path Path path, final boolean boolean parentFirst) Factory method
private static JarFile	Returns: Returns a `JarFile` instance, which is constructed based upon the Java runtime version. Depending on the Java runtime version, the returned instance may or may not be `multi-release` aware (a feature introduced in Java 9) newJarFile(final File The file representing the jar file)
private static boolean	readFully(final File f, final byte[] b)
public void	resetThreadContextLoader() Resets the current thread's context loader to its original value.
public void	setClassPath(final Path the search classpath consisting of directories and jar/zip files. classpath) Set the classpath to search for classes to load.
public synchronized void	setIsolated(final boolean Whether or not this classloader should run in isolated mode. isolated) Sets whether this classloader should run in isolated mode.
public void	setParent(final ClassLoader the parent class loader. parent) Set the parent for this class loader.
public void	setParentFirst(final boolean if true, delegate initial class search to the parent classloader. parentFirst) Control whether class lookup is delegated to the parent loader first or after this loader.
public void	setProject(final Project the project instance project) Set the project associated with this class loader
public void	setThreadContextLoader() Sets the current thread's context loader to this classloader, storing the current loader value for later resetting.
public void	subBuildFinished(final BuildEvent the buildFinished event event) Implements org.apache.tools.ant.SubBuildListener.subBuildFinished. Cleans up any resources held by this classloader at the end of a subbuild if it has been created for the subbuild's project instance.
public void	subBuildStarted(final BuildEvent the buildStarted event event) Implements org.apache.tools.ant.SubBuildListener.subBuildStarted. Empty implementation to satisfy the BuildListener interface.
public void	targetFinished(final BuildEvent the targetFinished event event) Implements org.apache.tools.ant.BuildListener.targetFinished. Empty implementation to satisfy the BuildListener interface.
public void	targetStarted(final BuildEvent the targetStarted event event) Implements org.apache.tools.ant.BuildListener.targetStarted. Empty implementation to satisfy the BuildListener interface.
public void	taskFinished(final BuildEvent the taskFinished event event) Implements org.apache.tools.ant.BuildListener.taskFinished. Empty implementation to satisfy the BuildListener interface.
public void	taskStarted(final BuildEvent the taskStarted event event) Implements org.apache.tools.ant.BuildListener.taskStarted. Empty implementation to satisfy the BuildListener interface.
public String	Returns: the path that this classloader has. toString() Overrides java.lang.Object.toString. Returns a `String` representing this loader.

public Class AntClassLoader

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary