Interface PackageDesc

public sealed interface PackageDesc

A nominal descriptor for a Package constant.

To create a PackageDesc for a package, use the of(String) or ofInternalName(String) method.

See Java Virtual Machine Specification:: 4.4.12 The CONSTANT_Package_info Structure
Since:: 21

Method Summary

Modifier and Type	Method	Description
`boolean`	`equals(Object o)`	Compare the specified object with this descriptor for equality.
`String`	`internalName()`	Returns the fully qualified (slash-separated) package name in internal form of this `PackageDesc`.
`default String`	`name()`	Returns the fully qualified (dot-separated) package name of this `PackageDesc`.
`static PackageDesc`	`of(String name)`	Returns a `PackageDesc` for a package, given the name of the package, such as `"java.lang"`.
`static PackageDesc`	`ofInternalName(String name)`	Returns a `PackageDesc` for a package, given the name of the package in internal form, such as `"java/lang"`.

Method Details

of

static PackageDesc of(String name)

Returns a PackageDesc for a package, given the name of the package, such as "java.lang".

Parameters:

name - the fully qualified (dot-separated) package name

Returns:

a PackageDesc describing the desired package

Throws:

NullPointerException - if the argument is null

IllegalArgumentException - if the name string is not in the correct format

See Java Language Specification:

6.5.3 Meaning of Module Names and Package Names

See Also:

ofInternalName

static PackageDesc ofInternalName(String name)

Returns a PackageDesc for a package, given the name of the package in internal form, such as "java/lang".

Parameters:

name - the fully qualified package name, in internal (slash-separated) form

Returns:

a PackageDesc describing the desired package

Throws:

NullPointerException - if the argument is null

IllegalArgumentException - if the name string is not in the correct format

See Java Virtual Machine Specification:

4.2.1 Binary Class and Interface Names
4.2.3 Module and Package Names

See Also:

internalName

String internalName()

Returns the fully qualified (slash-separated) package name in internal form of this PackageDesc.

Returns:

the package name in internal form, or the empty string for the unnamed package

See Also:

name

default String name()

Returns the fully qualified (dot-separated) package name of this PackageDesc.

Returns:

the package name, or the empty string for the unnamed package

See Also:

equals

boolean equals(Object o)

Compare the specified object with this descriptor for equality. Returns true if and only if the specified object is also a PackageDesc and both describe the same package.

Overrides:

equals in class Object

Parameters:

o - the other object

Returns:

whether this descriptor is equal to the other object

See Also:

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/constant/PackageDesc.html