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8214712: Archive Attributes$Name.KNOWN_NAMES

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Reviewed-by: alanb, jiangli
This commit is contained in:
Claes Redestad 2018-12-03 16:25:27 +01:00
parent bf2d6a2838
commit c013c7bd2f
2 changed files with 99 additions and 61 deletions
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159
src/java.base/share/classes/java/util/jar/Attributes.java
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@ -34,6 +34,8 @@ import java.util.Map;
import java.util.Objects;
import java.util.Set;
import jdk.internal.misc.VM;
import jdk.internal.vm.annotation.Stable;
import sun.util.logging.PlatformLogger;
import static java.nio.charset.StandardCharsets.UTF_8;
@ -454,7 +456,7 @@ public class Attributes implements Map<Object,Object>, Cloneable {
/**
* Avoid allocation for common Names
*/
private static final Map<String, Name> KNOWN_NAMES;
private static @Stable Map<String, Name> KNOWN_NAMES;
static final Name of(String name) {
Name n = KNOWN_NAMES.get(name);
@ -541,7 +543,7 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @see <a href="{@docRoot}/../specs/jar/jar.html#jar-manifest">
* Manifest and Signature Specification</a>
*/
public static final Name MANIFEST_VERSION = new Name("Manifest-Version");
public static final Name MANIFEST_VERSION;
/**
* {@code Name} object for {@code Signature-Version}
@ -549,13 +551,13 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @see <a href="{@docRoot}/../specs/jar/jar.html#jar-manifest">
* Manifest and Signature Specification</a>
*/
public static final Name SIGNATURE_VERSION = new Name("Signature-Version");
public static final Name SIGNATURE_VERSION;
/**
* {@code Name} object for {@code Content-Type}
* manifest attribute.
*/
public static final Name CONTENT_TYPE = new Name("Content-Type");
public static final Name CONTENT_TYPE;
/**
* {@code Name} object for {@code Class-Path}
@ -563,7 +565,7 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @see <a href="{@docRoot}/../specs/jar/jar.html#class-path-attribute">
* JAR file specification</a>
*/
public static final Name CLASS_PATH = new Name("Class-Path");
public static final Name CLASS_PATH;
/**
* {@code Name} object for {@code Main-Class} manifest
@ -572,7 +574,7 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* with the {@code -jar} command-line option of the
* {@code java} application launcher.
*/
public static final Name MAIN_CLASS = new Name("Main-Class");
public static final Name MAIN_CLASS;
/**
* {@code Name} object for {@code Sealed} manifest attribute
@ -580,19 +582,19 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @see <a href="{@docRoot}/../specs/jar/jar.html#package-sealing">
* Package Sealing</a>
*/
public static final Name SEALED = new Name("Sealed");
public static final Name SEALED;
/**
* {@code Name} object for {@code Extension-List} manifest attribute
* used for the extension mechanism that is no longer supported.
*/
public static final Name EXTENSION_LIST = new Name("Extension-List");
public static final Name EXTENSION_LIST;
/**
* {@code Name} object for {@code Extension-Name} manifest attribute.
* used for the extension mechanism that is no longer supported.
*/
public static final Name EXTENSION_NAME = new Name("Extension-Name");
public static final Name EXTENSION_NAME;
/**
* {@code Name} object for {@code Extension-Installation} manifest attribute.
@ -600,25 +602,25 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @deprecated Extension mechanism is no longer supported.
*/
@Deprecated
public static final Name EXTENSION_INSTALLATION = new Name("Extension-Installation");
public static final Name EXTENSION_INSTALLATION;
/**
* {@code Name} object for {@code Implementation-Title}
* manifest attribute used for package versioning.
*/
public static final Name IMPLEMENTATION_TITLE = new Name("Implementation-Title");
public static final Name IMPLEMENTATION_TITLE;
/**
* {@code Name} object for {@code Implementation-Version}
* manifest attribute used for package versioning.
*/
public static final Name IMPLEMENTATION_VERSION = new Name("Implementation-Version");
public static final Name IMPLEMENTATION_VERSION;
/**
* {@code Name} object for {@code Implementation-Vendor}
* manifest attribute used for package versioning.
*/
public static final Name IMPLEMENTATION_VENDOR = new Name("Implementation-Vendor");
public static final Name IMPLEMENTATION_VENDOR;
/**
* {@code Name} object for {@code Implementation-Vendor-Id}
@ -627,7 +629,7 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @deprecated Extension mechanism is no longer supported.
*/
@Deprecated
public static final Name IMPLEMENTATION_VENDOR_ID = new Name("Implementation-Vendor-Id");
public static final Name IMPLEMENTATION_VENDOR_ID;
/**
* {@code Name} object for {@code Implementation-URL}
@ -636,25 +638,25 @@ public class Attributes implements Map<Object,Object>, Cloneable {
* @deprecated Extension mechanism is no longer supported.
*/
@Deprecated
public static final Name IMPLEMENTATION_URL = new Name("Implementation-URL");
public static final Name IMPLEMENTATION_URL;
/**
* {@code Name} object for {@code Specification-Title}
* manifest attribute used for package versioning.
*/
public static final Name SPECIFICATION_TITLE = new Name("Specification-Title");
public static final Name SPECIFICATION_TITLE;
/**
* {@code Name} object for {@code Specification-Version}
* manifest attribute used for package versioning.
*/
public static final Name SPECIFICATION_VERSION = new Name("Specification-Version");
public static final Name SPECIFICATION_VERSION;
/**
* {@code Name} object for {@code Specification-Vendor}
* manifest attribute used for package versioning.
*/
public static final Name SPECIFICATION_VENDOR = new Name("Specification-Vendor");
public static final Name SPECIFICATION_VENDOR;
/**
* {@code Name} object for {@code Multi-Release}
@ -662,56 +664,91 @@ public class Attributes implements Map<Object,Object>, Cloneable {
*
* @since 9
*/
public static final Name MULTI_RELEASE = new Name("Multi-Release");
public static final Name MULTI_RELEASE;
private static void addName(Map<String, Name> names, Name name) {
names.put(name.name, name);
}
static {
var names = new HashMap<String, Name>(64);
addName(names, MANIFEST_VERSION);
addName(names, SIGNATURE_VERSION);
addName(names, CONTENT_TYPE);
addName(names, CLASS_PATH);
addName(names, MAIN_CLASS);
addName(names, SEALED);
addName(names, EXTENSION_LIST);
addName(names, EXTENSION_NAME);
addName(names, IMPLEMENTATION_TITLE);
addName(names, IMPLEMENTATION_VERSION);
addName(names, IMPLEMENTATION_VENDOR);
addName(names, SPECIFICATION_TITLE);
addName(names, SPECIFICATION_VERSION);
addName(names, SPECIFICATION_VENDOR);
addName(names, MULTI_RELEASE);
// Common attributes used in MANIFEST.MF et.al; adding these has a
// small footprint cost, but is likely to be quickly paid for by
// reducing allocation when reading and parsing typical manifests
addName(names, new Name("Add-Exports"));
addName(names, new Name("Add-Opens"));
addName(names, new Name("Ant-Version"));
addName(names, new Name("Archiver-Version"));
addName(names, new Name("Build-Jdk"));
addName(names, new Name("Built-By"));
addName(names, new Name("Bnd-LastModified"));
addName(names, new Name("Bundle-Description"));
addName(names, new Name("Bundle-DocURL"));
addName(names, new Name("Bundle-License"));
addName(names, new Name("Bundle-ManifestVersion"));
addName(names, new Name("Bundle-Name"));
addName(names, new Name("Bundle-Vendor"));
addName(names, new Name("Bundle-Version"));
addName(names, new Name("Bundle-SymbolicName"));
addName(names, new Name("Created-By"));
addName(names, new Name("Export-Package"));
addName(names, new Name("Import-Package"));
addName(names, new Name("Name"));
addName(names, new Name("SHA1-Digest"));
addName(names, new Name("X-Compile-Source-JDK"));
addName(names, new Name("X-Compile-Target-JDK"));
KNOWN_NAMES = names;
VM.initializeFromArchive(Attributes.Name.class);
if (KNOWN_NAMES == null) {
MANIFEST_VERSION = new Name("Manifest-Version");
SIGNATURE_VERSION = new Name("Signature-Version");
CONTENT_TYPE = new Name("Content-Type");
CLASS_PATH = new Name("Class-Path");
MAIN_CLASS = new Name("Main-Class");
SEALED = new Name("Sealed");
EXTENSION_LIST = new Name("Extension-List");
EXTENSION_NAME = new Name("Extension-Name");
EXTENSION_INSTALLATION = new Name("Extension-Installation");
IMPLEMENTATION_TITLE = new Name("Implementation-Title");
IMPLEMENTATION_VERSION = new Name("Implementation-Version");
IMPLEMENTATION_VENDOR = new Name("Implementation-Vendor");
IMPLEMENTATION_VENDOR_ID = new Name("Implementation-Vendor-Id");
IMPLEMENTATION_URL = new Name("Implementation-URL");
SPECIFICATION_TITLE = new Name("Specification-Title");
SPECIFICATION_VERSION = new Name("Specification-Version");
SPECIFICATION_VENDOR = new Name("Specification-Vendor");
MULTI_RELEASE = new Name("Multi-Release");
var names = new HashMap<String, Name>(64);
addName(names, MANIFEST_VERSION);
addName(names, SIGNATURE_VERSION);
addName(names, CONTENT_TYPE);
addName(names, CLASS_PATH);
addName(names, MAIN_CLASS);
addName(names, SEALED);
addName(names, EXTENSION_LIST);
addName(names, EXTENSION_NAME);
addName(names, IMPLEMENTATION_TITLE);
addName(names, IMPLEMENTATION_VERSION);
addName(names, IMPLEMENTATION_VENDOR);
addName(names, SPECIFICATION_TITLE);
addName(names, SPECIFICATION_VERSION);
addName(names, SPECIFICATION_VENDOR);
addName(names, MULTI_RELEASE);
// Common attributes used in MANIFEST.MF et.al; adding these has a
// small footprint cost, but is likely to be quickly paid for by
// reducing allocation when reading and parsing typical manifests
// JDK internal attributes
addName(names, new Name("Add-Exports"));
addName(names, new Name("Add-Opens"));
// LauncherHelper attributes
addName(names, new Name("Launcher-Agent-Class"));
addName(names, new Name("JavaFX-Application-Class"));
// jarsigner attributes
addName(names, new Name("Name"));
addName(names, new Name("Created-By"));
addName(names, new Name("SHA1-Digest"));
addName(names, new Name("SHA-256-Digest"));
KNOWN_NAMES = Map.copyOf(names);
} else {
// Even if KNOWN_NAMES was read from archive, we still need
// to initialize the public constants
MANIFEST_VERSION = KNOWN_NAMES.get("Manifest-Version");
SIGNATURE_VERSION = KNOWN_NAMES.get("Signature-Version");
CONTENT_TYPE = KNOWN_NAMES.get("Content-Type");
CLASS_PATH = KNOWN_NAMES.get("Class-Path");
MAIN_CLASS = KNOWN_NAMES.get("Main-Class");
SEALED = KNOWN_NAMES.get("Sealed");
EXTENSION_LIST = KNOWN_NAMES.get("Extension-List");
EXTENSION_NAME = KNOWN_NAMES.get("Extension-Name");
EXTENSION_INSTALLATION = KNOWN_NAMES.get("Extension-Installation");
IMPLEMENTATION_TITLE = KNOWN_NAMES.get("Implementation-Title");
IMPLEMENTATION_VERSION = KNOWN_NAMES.get("Implementation-Version");
IMPLEMENTATION_VENDOR = KNOWN_NAMES.get("Implementation-Vendor");
IMPLEMENTATION_VENDOR_ID = KNOWN_NAMES.get("Implementation-Vendor-Id");
IMPLEMENTATION_URL = KNOWN_NAMES.get("Implementation-URL");
SPECIFICATION_TITLE = KNOWN_NAMES.get("Specification-Title");
SPECIFICATION_VERSION = KNOWN_NAMES.get("Specification-Version");
SPECIFICATION_VENDOR = KNOWN_NAMES.get("Specification-Vendor");
MULTI_RELEASE = KNOWN_NAMES.get("Multi-Release");
}
}
}
}