RFR: 8261940: Fix references to IOException in BigDecimal javadoc

Thu Feb 18 16:54:40 UTC 2021

On Thu, 18 Feb 2021 06:03:41 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Noticed by some of  Jon Gibbons's doc linting & checking tooling, this changeset fixes two javadoc issues for BigDecimal's serialization-related methods, improving the serial form page.

I concur with @AlanBateman about importing `IOException`.

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Marked as reviewed by bpb (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2623