Package org.apache.bcel.util

Class ModularRuntimeImage

java.lang.Object

org.apache.bcel.util.ModularRuntimeImage

All Implemented Interfaces:

Closeable, AutoCloseable

public class ModularRuntimeImage
extends Object
implements Closeable

Wraps a Java 9 JEP 220 modular runtime image. Requires the JRT NIO file system.

Since:

6.3

Constructor Summary

Constructors

Constructor	Description
ModularRuntimeImage()	Constructs a default instance.
ModularRuntimeImage(String javaHome)	Constructs an instance using the JRT file system implementation from a specific Java Home.

Method Summary

Modifier and Type	Method	Description
void	close()
FileSystem	getFileSystem()
List<Path>	list(String dirName)	Lists all entries in the given directory.
List<Path>	list(Path dirPath)	Lists all entries in the given directory.
List<Path>	modules()	Lists all modules.
List<Path>	packages()	Lists all packages.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ModularRuntimeImage

public ModularRuntimeImage()
                    throws IOException

Constructs a default instance.

Throws:

IOException - an I/O error occurs accessing the file system

ModularRuntimeImage

public ModularRuntimeImage(String javaHome)
                    throws IOException

Constructs an instance using the JRT file system implementation from a specific Java Home.

Parameters:

javaHome - Path to a Java 9 or greater home.

Throws:

IOException - an I/O error occurs accessing the file system

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

list

public List<Path> list(Path dirPath)
                throws IOException

Lists all entries in the given directory.

Parameters:

dirPath - directory path.

Returns:

a list of dir entries if an I/O error occurs

Throws:

IOException - an I/O error occurs accessing the file system

list

public List<Path> list(String dirName)
                throws IOException

Lists all entries in the given directory.

Parameters:

dirName - directory path.

Returns:

a list of dir entries if an I/O error occurs

Throws:

IOException - an I/O error occurs accessing the file system

modules

public List<Path> modules()
                   throws IOException

Lists all modules.

Returns:

a list of modules

Throws:

IOException - an I/O error occurs accessing the file system

packages

public List<Path> packages()
                    throws IOException

Lists all packages.

Returns:

a list of modules

Throws:

IOException - an I/O error occurs accessing the file system

getFileSystem

public FileSystem getFileSystem()