- Add some code comments and javadoc for SimpleCache::getAndInitialize
- Add TODO to migrate from using ClassLoader::defineClass to the class
  definition strategy used in ClassLoaderWeavingAdaptor

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

1. Write SAME_BYTES to cacheMap when woven bytes are null
2. Fix TODO in SimpleCache::getAndInitialize, using Optional to help
   indicate cache hit for unwoven class
3. Improve test coverage (cache miss, cache hit for unwoven class)

Relates to #285.

Co-authored-by: Alexander Kriegisch <Alexander@Kriegisch.name>
Signed-off-by: KimmingLau <294001791@qq.com>
Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

Also update lib/aspectj/aspectjweaver.jar to fix integration tests.

Fixes #285.

Co-authored-by: Kimming Lau <294001791@qq.com>
Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

This change makes sense independently of #277, but also enables using

  - cp "my.jar;aspectjweaver.jar"
  -XX:+AllowArchivingWithJavaAgent
  -javaagent:aspectjweaver.jar

while creating a CDS archive. Afterward, the application can be run in
its woven state from the CDS archive even without '-javaagent', because
the byte code was archived in its woven state ("poor man's AJC"). See
https://github.com/eclipse-aspectj/aspectj/issues/277#issuecomment-1931142753
for details.

Fixes #277.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

This was required by the Eclipse team as one precondition for the next
release.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

Reports explicit boxing, i.e. wrapping of primitive values in objects. Explicit manual boxing is unnecessary under Java 5 and newer, and can be safely removed.

Signed-off-by: Lars Grefer <eclipse@larsgrefer.de>