Fix remaining Java compiler warnings, mainly around missing
generics or deprecated code.
Also add the `-Werror` compiler option to ensure that any future
warnings will fail the build.
Issue: SPR-11064
Remove Javadoc settings from generated eclipse meta-data. Unfortunately
eclipse provides too many false warnings due to the fact that @Link and
@See tags in Spring often refer modules to which they cannot directly
depend.
Update gradle to generate the following project specific eclipse
settings:
- Java formatting
- Cleanup options
- Warning settings
- Code template with copyright header
- WTP module meta-data
In addition this commit changes the eclipse project .classpath file
to output test and main classes to different folders. This is required
to prevent eclipse WTP from packaging test classes into /WEB-INF/lib
jar files.
Issue: SPR-9518
