* UploadPack: Use request instead of field for filterBlobLimt
* Mark fetch requests fields as final and @NonNull when possible

* Create FetchRequest superclass with common elements
* Rename Fetch V2 request wantsIds and options
* Move protocol v0/v1 parsing to its own class and request objects

* Fix file handle leak in ObjectDownloadListener.onWritePossible

* Merge branch 'stable-4.6' into stable-4.7

* Merge branch 'stable-4.5' into stable-4.6

* Replace Findbugs with Spotbugs in org.eclipse.jgit/pom.xml

* Upgrade maven-surefire plugins to 2.22.1

* Replace FindBugs with SpotBugs

* FirstWant: tighten first-want line validation

* Move first line parsing for v0/v1 pack negotiation out of UploadPack

* Upgrade error_prone_core to 2.3.2

* PackOutputStream: Suppress Error Prone's ShortCircuitBoolean warning

* Add missing @since tags for ObjectChecker.ErrorType
* Revert "Remove unused API problem filters"

* Bazel: Require minimum bazel version 0.17.1

* ValidRefNameTest#testNormalizeBranchName: Fix string/ref equality check

* Remove unused API problem filters

* Upgrade wagon-ssh to 3.2.0
* Upgrade maven-jxr-plugin to 3.0.0
* Upgrade maven-shade-plugin to 3.2.0
* Upgrade jacoco-maven-plugin to 0.8.2
* Upgrade maven-project-info-reports-plugin to 3.0.0
* Upgrade maven-enforcer-plugin to 3.0.0-M2
* Upgrade maven surefire plugins to 2.22.0
* Ensure same version of maven-surefire-plugin and maven-surefire-report-plugin

* Format @NonNull on return value as method annotation
* Format @Nullable on return value as method annotation

* Avoid using @Nullable to annotate arrays

* FsckError: Use @Nullable as field annotation (before any modifier)

* DfsFsck: Check that .gitmodules in the repository have valid contents
* FsckError.CorruptObject: Use @Nullable constructor for errorType
* SubmoduleValidator: Always throw SubmoduleValidationException

* Merge branch 'stable-5.1'

* Merge branch 'stable-5.0' into stable-5.1

* Merge branch 'stable-4.11' into stable-5.0

* Merge branch 'stable-4.10' into stable-4.11

* Merge branch 'stable-4.9' into stable-4.10

* Merge branch 'stable-4.8' into stable-4.9

* Merge branch 'stable-4.7' into stable-4.8

* SubmoduleValidator: Remove unused import of ConfigConstants

* Merge branch 'stable-4.8' into stable-4.9

* Merge branch 'stable-4.7' into stable-4.8

* SubmoduleValidator: Permit missing path or url

* RefAdvertiser: Add Javadoc for usage of send(Collection)

* SubmoduleAddCommand: Remove double-check of submodule name

* Merge branch 'stable-5.1'

* Update API warning filter to 5.1.3

* Merge branch 'stable-5.1'

* Merge branch 'stable-5.0' into stable-5.1

* Merge branch 'stable-4.11' into stable-5.0

* Merge branch 'stable-4.10' into stable-4.11

* Merge branch 'stable-4.9' into stable-4.10

* Merge branch 'stable-4.8' into stable-4.9

* Merge branch 'stable-4.7' into stable-4.8

* ObjectChecker#getGitsubmodules: Fix malformed javadoc

* Merge branch 'stable-5.1'

* Prepare 5.1.3-SNAPSHOT builds

* JGit v5.1.2.201810061102-r
* Merge branch 'stable-5.0' into stable-5.1

* Merge branch 'stable-4.11' into stable-5.0

* Prepare 4.11.5-SNAPSHOT builds
* JGit v4.11.4.201810060650-r
* Merge branch 'stable-4.10' into stable-4.11

* Fix configuration of maven-javadoc-plugin