Fix PMD warnings
Add @Nullable/@Nonnull and fix warnings
Analyse variables as soon as possible
OPAL-1701: Use gracePeriod 0 when calling "index now"
Merge pull request #108 from emorency/feature/opal-1701-new-table-indexation

OPAL-1701: Use gracePeriod 0 when calling "index now"
OPAL-1700: Set the variable link based on the parent link if its not set.
Format code
Remove pmd ruleset variable form pom.xml (OPAL-1704)
Set compile scope to jsr305 (@Nullable & @Nonnull)
Merge pull request #109 from emorency/feature/opal-1700-missing-variable-summary

OPAL-1700: Set the variable link based on the parent link if its not set...