openjdk 8: 错误 - 未找到 public 或受保护的类文档

Question

我在 Debian，并且已经安装了 OpenJDK 8 以及软件包 openjdk-8-doc 和 default-jdk-doc；但是，每当我向 javadoc 实用程序指定 class 或包名称时，我都无法查看 JDK 8 API 的 class 的任何文档，这无法显示文档抛出以下错误：

ArrayList 案例：

kais@debian:~$ javadoc ArrayList
Loading source files for package ArrayList...
javadoc: warning - No source files for package ArrayList
Constructing Javadoc information...
javadoc: warning - No source files for package ArrayList
javadoc: error - No public or protected classes found to document.
1 error
2 warnings
kais@debian:~$ javadoc java.lang.ArrayList
Loading source files for package java.lang.ArrayList...
javadoc: warning - No source files for package java.lang.ArrayList
Constructing Javadoc information...
javadoc: warning - No source files for package java.lang.ArrayList
javadoc: error - No public or protected classes found to document.
1 error
2 warnings

J面板案例：

kais@debian:~$ javadoc JPanel
Loading source files for package JPanel...
javadoc: warning - No source files for package JPanel
Constructing Javadoc information...
javadoc: warning - No source files for package JPanel
javadoc: error - No public or protected classes found to document.
1 error
2 warnings
kais@debian:~$ javadoc javax.swing.JPanel
Loading source files for package javax.swing.JPanel...
javadoc: warning - No source files for package javax.swing.JPanel
Constructing Javadoc information...
javadoc: warning - No source files for package javax.swing.JPanel
javadoc: error - No public or protected classes found to document.
1 error
2 warnings
kais@debian:~$ javadoc javax.swing
Loading source files for package javax.swing...
javadoc: warning - No source files for package javax.swing
Constructing Javadoc information...
javadoc: warning - No source files for package javax.swing
javadoc: error - No public or protected classes found to document.
1 error
2 warnings

这在我看来很奇怪，因为安装包 openjdk-8-doc 应该包含 javadoc ..

所需的文档

有什么想法吗？

Answer 1

Javadoc 工具应该从 Java 源中创建 Javadoc。它不是显示特定 class 的 javadoc 的工具。 JVM 中 classes 的 Java 文档可在 Oracle or can be browsed online.

下载

正如您在问题中所说，您 "installed" 对应 JDK 的文档，因此无需再次下载或在线浏览，您可以更改为 "installation directory"打开文档包的 index-html 文件，该文件应该位于其根目录中。

openjdk 8: 错误 - 未找到 public 或受保护的 类 文档

openjdk 8: error - No public or protected classes found to document

java

openjdk

debian

swing

javadoc

openjdk 8: 错误 - 未找到 public 或受保护的类文档