fix EOF error check

[wongoo]

What this PR does:

• fix EOF error check

Special notes for your reviewer:
NONE

Does this PR introduce a user-facing change?:

- fix EOF error check 

[codecov-commenter]

Codecov Report

Merging #288 (8798395) into master (ad93624) will not change coverage.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##           master     #288   +/-   ##
=======================================
  Coverage   70.13%   70.13%           
=======================================
  Files          27       27           
  Lines        3034     3034           
=======================================
  Hits         2128     2128           
  Misses        680      680           
  Partials      226      226           

Impacted Files	Coverage Δ
decode.go	69.46% <0.00%> (ø)
java_sql_time.go	63.88% <0.00%> (ø)
object.go	65.69% <0.00%> (ø)
list.go	84.61% <100.00%> (ø)
map.go	58.06% <100.00%> (ø)

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[wongoo]

@justxuewei I have updated this pr, this pr contains only one fix for EOF error check.