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PathClassLoader
public
class
PathClassLoader
extends BaseDexClassLoader
Provides a simple ClassLoader
implementation that operates on a list
of files and directories in the local file system, but does not attempt to
load classes from the network. Android uses this class for its system class
loader and for its application class loader(s).
Summary
Inherited methods |
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From class
java.lang.ClassLoader
void
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clearAssertionStatus()
Sets the default assertion status for this class loader to
false and discards any package defaults or class assertion
status settings associated with the class loader.
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final
Class<?>
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defineClass(String name, byte[] b, int off, int len, ProtectionDomain protectionDomain)
Converts an array of bytes into an instance of class Class ,
with a given ProtectionDomain .
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final
Class<?>
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defineClass(String name, ByteBuffer b, ProtectionDomain protectionDomain)
Converts a ByteBuffer into an instance
of class Class , with the given ProtectionDomain .
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final
Class<?>
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defineClass(byte[] b, int off, int len)
This method was deprecated
in API level 15.
Replaced by defineClass(String, byte[], int, int)
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final
Class<?>
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defineClass(String name, byte[] b, int off, int len)
Converts an array of bytes into an instance of class Class .
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Package
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definePackage(String name, String specTitle, String specVersion, String specVendor, String implTitle, String implVersion, String implVendor, URL sealBase)
Defines a package by name in this ClassLoader .
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Class<?>
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findClass(String name)
Finds the class with the specified binary name.
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String
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findLibrary(String libname)
Returns the absolute path name of a native library.
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final
Class<?>
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findLoadedClass(String name)
Returns the class with the given binary name if this
loader has been recorded by the Java virtual machine as an initiating
loader of a class with that binary name.
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URL
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findResource(String name)
Finds the resource with the given name.
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Enumeration<URL>
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findResources(String name)
Returns an enumeration of URL objects
representing all the resources with the given name.
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final
Class<?>
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findSystemClass(String name)
Finds a class with the specified binary name,
loading it if necessary.
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Package
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getPackage(String name)
This method was deprecated
in API level 35.
If multiple class loaders delegate to each other and define classes
with the same package name, and one such loader relies on the lookup
behavior of getPackage to return a Package from
a parent loader, then the properties exposed by the Package
may not be as expected in the rest of the program.
For example, the Package will only expose annotations from the
package-info.class file defined by the parent loader, even if
annotations exist in a package-info.class file defined by
a child loader.
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Package[]
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getPackages()
Returns all of the Package s that have been defined by
this class loader and its ancestors.
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final
ClassLoader
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getParent()
Returns the parent class loader for delegation.
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URL
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getResource(String name)
Finds the resource with the given name.
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InputStream
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getResourceAsStream(String name)
Returns an input stream for reading the specified resource.
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Enumeration<URL>
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getResources(String name)
Finds all the resources with the given name.
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static
ClassLoader
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getSystemClassLoader()
Returns the system class loader.
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static
URL
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getSystemResource(String name)
Find a resource of the specified name from the search path used to load
classes.
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static
InputStream
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getSystemResourceAsStream(String name)
Open for reading, a resource of the specified name from the search path
used to load classes.
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static
Enumeration<URL>
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getSystemResources(String name)
Finds all resources of the specified name from the search path used to
load classes.
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Class<?>
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loadClass(String name, boolean resolve)
Loads the class with the specified binary name.
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Class<?>
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loadClass(String name)
Loads the class with the specified binary name.
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static
boolean
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registerAsParallelCapable()
Registers the caller as
#isRegisteredAsParallelCapable() parallel capable .
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final
void
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resolveClass(Class<?> c)
Links the specified class.
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void
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setClassAssertionStatus(String className, boolean enabled)
Sets the desired assertion status for the named top-level class in this
class loader and any nested classes contained therein.
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void
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setDefaultAssertionStatus(boolean enabled)
Sets the default assertion status for this class loader.
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void
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setPackageAssertionStatus(String packageName, boolean enabled)
Sets the package default assertion status for the named package.
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final
void
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setSigners(Class<?> c, Object[] signers)
Sets the signers of a class.
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From class
java.lang.Object
Object
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clone()
Creates and returns a copy of this object.
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boolean
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equals(Object obj)
Indicates whether some other object is "equal to" this one.
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void
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finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
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final
Class<?>
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getClass()
Returns the runtime class of this Object .
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int
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hashCode()
Returns a hash code value for the object.
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final
void
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notify()
Wakes up a single thread that is waiting on this object's
monitor.
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final
void
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notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String
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toString()
Returns a string representation of the object.
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final
void
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wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
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final
void
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wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
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final
void
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wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
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Public constructors
PathClassLoader
public PathClassLoader (String dexPath,
ClassLoader parent)
Creates a PathClassLoader
that operates on a given list of files
and directories. This method is equivalent to calling
PathClassLoader(java.lang.String, java.lang.String, java.lang.ClassLoader)
with a
null
value for the second argument (see description there).
Parameters |
dexPath |
String : the list of jar/apk files containing classes and
resources, delimited by File.pathSeparator , which
defaults to ":" on Android |
parent |
ClassLoader : the parent class loader |
PathClassLoader
public PathClassLoader (String dexPath,
String librarySearchPath,
ClassLoader parent)
Creates a PathClassLoader
that operates on two given
lists of files and directories. The entries of the first list
should be one of the following:
- JAR/ZIP/APK files, possibly containing a "classes.dex" file as
well as arbitrary resources.
- Raw ".dex" files (not inside a zip file).
The entries of the second list should be directories containing
native library files.
Parameters |
dexPath |
String : the list of jar/apk files containing classes and
resources, delimited by File.pathSeparator , which
defaults to ":" on Android |
librarySearchPath |
String : the list of directories containing native
libraries, delimited by File.pathSeparator ; may be
null |
parent |
ClassLoader : the parent class loader |
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Last updated 2025-01-23 UTC.
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