Merge branch 'stable-5.9' into stable-5.10

* stable-5.9:
  Retry loose object read upon "Stale file handle" exception
  Ignore missing javadoc in test bundles

Change-Id: I56fc2c47193a891285a705d44b3507f23982dc8a

diff --cc org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties
Simple merge

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/internal/JGitText.java
Simple merge

diff --cc org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
Simple merge