* stable-5.4:
Fix NPE in RebaseTodoFile#parseComments
Fix NPE in ObjectIdOwnerMap#get
Fix NPE in CommitOnlyTest#getHead
FileUtils#lastModifiedInstant should not log error if path doesn't exist
Cache user global and system-wide git configurations
Avoid setup and saving FileStoreAttributes compete for ~/.gitconfig lock
Add missing dependencies for running FS_POSIXTest in Eclipse
Fix javadoc for SystemReader#getInstance
Upgrade tycho-extras to 1.4.0
Improve retry handling when saving FileStoreAttributes fails
Ensure FSTest uses MockSystemReader
Make supportsAtomicCreateNewFile return true as default
Update orbit to R20190602212107-2019-06 to enable backports from master
Handle InvalidPathException in FS_POSIX#createNewFileAtomic
Ensure root cause of lock creation failures is logged
Implement toString in MockSystemReader and MockConfig
LocalDiskRefTreeDatabaseTest shall use MockSystemReader
Ensure LocalDiskRepositoryTestCase#setup fully uses MockSystemReader
Ensure we use MockSystemReader in tests
Override FileBasedConfig's save method in MockConfig
Remove FileBasedConfig.load(boolean) introduced in d45219ba
Disable debug log for FS in org.eclipse.jgit.test
Bazel: enable logging for tests in org.eclipse.jgit.test
LockFile: log exception if creation of lock file failed
Stop using deprecated Constants.CHARACTER_ENCODING
Change-Id: I709de5edb626536529a99220aae7751b127c9bff
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>