* Adds a javadoc summary to the methods in the `SerializedName` annotation
Fixes the `MissingSummary` warn given by ErrorProne
* Adds a javadoc summary to the methods of the `ExclusionStrategy` annotation
Fixes the `MissingSummary` warn given by ErrorProne
* Adds a javadoc summary to `getDeclaringClass()` and `getName()` methods of the `FieldAttributes` class
Fixes the `MissingSummary` warn given by ErrorProne
* Adds a javadoc summary to `getMajorJavaVersion()` and `isJava9OrLater()` methods of the `JavaVersion` class
Fixes the `MissingSummary` warn given by ErrorProne
* Adds a comment in the empty catch block of the `AccessChecker:101` class
Fixes the `EmptyCatch` warn given by ErrorProne
* Adds a comment in the empty catch block of the `DefaultDateTypeAdapter:158` class
Fixes the `EmptyCatch` warn given by ErrorProne
* Adds a comment in the empty catch blocks of the `UnsafeAllocator:(67|92|113)` class
Fixes the `EmptyCatch` warn given by ErrorProne
* Adds a comment in the empty catch block of the `DateTypeAdapter:85` class
Fixes the `EmptyCatch` warn given by ErrorProne
* Fixes javadoc param of the `deserialize(...)` method of the `JsonDeserializer` interface
Fixes the `InvalidParam` warn given by ErrorProne
* Adds a charset `StandardCharsets.UTF_8` in the `resourceToString()` method of the `ParseBenchmark` class
Fixes the `DefaultCharset` warn given by ErrorProne
* Fixes a typo
* Implements review feedback
* Adds blank line before @ tag.
* Fix non-threadsafe creation of adapter for type with cyclic dependency
* Improve handling of broken adapters during Gson.getAdapter(...) call
* Improve test
* Slightly improve implementation and extend tests
* Simplify getAdapter implementation
* Convert GsonTest to JUnit 4 test
* Clarify getAdapter concurrency behavior
Maicol