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- Comparison of Java 11/17/20 version code modules
| Java11-Module | Java17-Module | Java20-Module |
|---|---|---|
| java.base | java.base | java.base |
| java.compiler | java.compiler | java.compiler |
| java.datatransfer | java.datatransfer | java.datatransfer |
| java.desktop | java.desktop | java.desktop |
| java.instrument | java.instrument | java.instrument |
| java.logging | java.logging | java.logging |
| java.management | java.management | java.management |
| java.management.rmi | java.management.rmi | java.management.rmi |
| java.naming | java.naming | java.naming |
| java.net.http | java.net.http | java.net.http |
| java.prefs | java.prefs | java.prefs |
| java.rmi | java.rmi | java.rmi |
| java.scripting | java.scripting | java.scripting |
| java.se | java.se | java.se |
| java.security.jgss | java.security.jgss | java.security.jgss |
| java.security.sasl | java.security.sasl | java.security.sasl |
| java.smartcardio | java.smartcardio | java.smartcardio |
| java.sql | java.sql | java.sql |
| java.sql.rowset | java.sql.rowset | java.sql.rowset |
| java.transaction.xa | java.transaction.xa | java.transaction.xa |
| java.xml | java.xml | java.xml |
| java.xml.crypto | java.xml.crypto | java.xml.crypto |
| jdk.accessibility | jdk.accessibility | jdk.accessibility |
| jdk.attach | jdk.attach | jdk.attach |
| jdk.charsets | jdk.charsets | jdk.charsets |
| jdk.compiler | jdk.compiler | jdk.compiler |
| jdk.crypto.cryptoki | jdk.crypto.cryptoki | jdk.crypto.cryptoki |
| jdk.crypto.ec | jdk.crypto.ec | jdk.crypto.ec |
| jdk.dynalink | jdk.dynalink | jdk.dynalink |
| jdk.editpad | jdk.editpad | jdk.editpad |
| jdk.hotspot.agent | jdk.hotspot.agent | jdk.hotspot.agent |
| jdk.httpserver | jdk.httpserver | jdk.httpserver |
| X | jdk.incubator.foreign | jdk.incubator.concurrent |
| X | jdk.incubator.vector | jdk.incubator.vector |
| jdk.jartool | jdk.jartool | jdk.jartool |
| jdk.javadoc | jdk.javadoc | jdk.javadoc |
| jdk.jcmd | jdk.jcmd | jdk.jcmd |
| jdk.jconsole | jdk.jconsole | jdk.jconsole |
| jdk.jdeps | jdk.jdeps | jdk.jdeps |
| jdk.jdi | jdk.jdi | jdk.jdi |
| jdk.jdwp.agent | jdk.jdwp.agent | jdk.jdwp.agent |
| jdk.jfr | jdk.jfr | jdk.jfr |
| jdk.jlink | jdk.jlink | jdk.jlink |
| X | jdk.jpackage | jdk.jpackage |
| jdk.jshell | jdk.jshell | jdk.jshell |
| jdk.jsobject | jdk.jsobject | jdk.jsobject |
| jdk.jstatd | jdk.jstatd | jdk.jstatd |
| jdk.localedata | jdk.localedata | jdk.localedata |
| jdk.management | jdk.management | jdk.management |
| jdk.management.agent | jdk.management.agent | jdk.management.agent |
| jdk.management.jfr | jdk.management.jfr | jdk.management.jfr |
| jdk.naming.dns | jdk.naming.dns | jdk.naming.dns |
| jdk.naming.rmi | jdk.naming.rmi | jdk.naming.rmi |
| jdk.net | jdk.net | jdk.net |
| jdk.pack | X | X |
| jdk.rmic | X | X |
| jdk.scripting.nashorn | X | X |
| X | jdk.nio.mapmode | jdk.nio.mapmode |
| jdk.sctp | jdk.sctp | jdk.sctp |
| jdk.security.auth | jdk.security.auth | jdk.security.auth |
| jdk.security.jgss | jdk.security.jgss | jdk.security.jgss |
| jdk.xml.dom | jdk.xml.dom | jdk.xml.dom |
| jdk.zipfs | jdk.zipfs | jdk.zipfs |
- jdk.pack
Defines tools for transforming a JAR file into a compressed pack200 file and transforming a packed file into a JAR file, including the pack200 and unpack200 tools.
定义用于将JAR文件转换为压缩的pack200文件和将打包文件转换为JAR文件的工具，包括pack200和unpack200工具。
- jdk.rmic
Defines the rmic compiler for generating stubs and skeletons using the Java Remote Method Protocol (JRMP) for remote objects.
定义 rmic 编译器，用于使用远程对象的 Java 远程方法协议 (JRMP) 生成存根和骨架。
- jdk.scripting.nashorn
Provides the implementation of Nashorn script engine and the runtime environment for programs written in ECMAScript 5.1.
提供Nashorn脚本引擎的实现以及ECMAScript 5.1编写的程序的运行时环境。
- jdk.incubator.foreign
Defines an API for accessing foreign memory and calling foreign functions, directly from Java.
定义了一个 API，用于直接从 Java 访问外部内存和调用外部函数。
- jdk.incubator.vector
Defines an API for expressing computations that can be reliably compiled at runtime into SIMD instructions, such as AVX instructions on x64, and NEON instructions on AArch64.
定义一个用于表达计算的 API，这些计算可以在运行时可靠地编译为 SIMD 指令，例如 x64 上的 AVX 指令和 AArch64 上的 NEON 指令
- jdk.jpackage
Defines the Java Packaging tool, jpackage.
定义 Java 打包工具 jpackage。
- jdk.nio.mapmode
Defines JDK-specific file mapping modes.
定义 JDK 特定的文件映射模式。