Ji Liu created ARROW-6118:
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Summary: [Java] Replace google Preconditions with Arrow
Preconditions
Key: ARROW-6118
URL: https://issues.apache.org/jira/browse/ARROW-6118
Project: Apache Arrow
Issue Type: Improvement
Reporter: Ji Liu
Assignee: Ji Liu
Now in java code, most places uses {{org.apache.arrow.util.Preconditions}}, but
still some places uses {{com.google.common.base.Preconditions}}.
Remove google Preconditions meanwhile remove duplicated checks.
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