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Up to a few days ago, Eclipse was working fine in locating the javadoc for base classes such as Java.io.File. Recently, though, hovering over these classes only yields a message indicating that the source and javadoc are missing:
"Note: This element has no attached source and the Javadoc could not be found in the attached Javadoc."
I couldn't for the life of me locate the option that would let me reselect the location of the basic documentation. Does anyone know how to fix this?
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Go to Project > Properties > Java Build Path > Libraries and Choose . jar file which has missing Javadoc>(You should see Javadoc location: (None)) Click Edit and Provide Javadoc location file and press OK. Please do comment if you have any better way handy.
To generate JavaDoc in Eclipse: –Select “Generate JavaDoc” option from Project menu and a wizard will appear. Specify the location for the JavaDoc file on your computer, by default it will be in the C drive. Select the project and then the packages for which you want to create the JavaDoc file.
Fortunately, all modern versions of the JDK provide the Javadoc tool – for generating API documentation from comments present in the source code. Prerequisites: JDK 1.4 (JDK 7+ is recommended for the latest version of the Maven Javadoc plugin)
Expand your JRE System library and find rt.jar (classes.jar for Mac OS X). Right click, and select 'Properties'.
You can then specify the Javadoc location (as well as the source location).
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