Previously, each entry in loader.path could only refer to a standard
jar file. Refering to such a jar would add all of the classes in
the root of the jar to the class path.
This commit adds support for referencing a directory within a jar file
that contains one or more nested jars. For example:
$ java -jar -Dloader.path='jar:file:./lib.jar/!BOOT-INF/lib' my.jar
This will add all of the classes in all of that jars in the
BOOT-INF/lib directory of lib.jar to the class path.
See gh-8334
The main changes are:
- Switch to `loader.properties` instead of `application.properties`
- Search for `loader.properties` in `loader.home` as well as in
the classpath
- Placeholder replacements in MANIFEST.MF (using `loader.properties`
or system/env vars)
See gh-7221
Closes gh-8346
Consider the following two URLs:
jar:file:/test.jar!/BOOT-INF/classes!/foo.txt
jar:file:/test.jar!/BOOT-INF/classes/foo.txt
They both reference the same foo.txt file in the BOOT-INF/classes
directory of test.jar, however the first URL does so via the
nested BOOT-INF/classes archive. Previously, this difference in the
URLs would lead to PathMatchingResourcePatternResolver returning two
resources for foo.txt when asked to find all resources matching the
pattern classpath*:/**/*.txt.
This commit updates our Handler that is used for jar: URLs to consider
the two URLs above to be equivalent such that url1 is equal to url2
and the two urls will produce the same hash code.
Closes gh-7449
Phillip Webb
Andy Wilkinson
Dave Syer
Spring Buildmaster
Eddú Meléndez
Stephane Nicoll
dreis
Johnny Lim
Oscar Utbult