Specify that OversizedSymbolTableHandler is required for limited buffers

[austnwil]

Description of changes:

Errors from IonBufferConfiguration.build() did not specify that OversizedSymbolTableHandlers are required in addition to OversizedValueHandlers if a maximum buffer size is set because the parent BufferConfiguration created the error message, which only knows about OversizedValueHandlers. This updates the error message to indicate that both are required.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

❌ Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 67.98%. Comparing base (3c1b6b1) to head (be4714f).
⚠️ Report is 126 commits behind head on master.

Files with missing lines	Patch %	Lines
...in/java/com/amazon/ion/IonBufferConfiguration.java	33.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1098      +/-   ##
============================================
+ Coverage     67.23%   67.98%   +0.74%     
- Complexity     5484     5636     +152     
============================================
  Files           159      162       +3     
  Lines         23025    23344     +319     
  Branches       4126     4179      +53     
============================================
+ Hits          15481    15870     +389     
+ Misses         6262     6181      -81     
- Partials       1282     1293      +11     

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[tgregg]

Instead of catch / re-throw, I'd suggest we just make requireMaximumBufferSize() private and have different implementations in the parent and subclass. It's simple enough that calling into super isn't saving us code anyway.

[austnwil]

I can make this change. Only difference would be that if you omit both, it will only warn you about OversizedValueHandler at first (because the check runs in both the parent and the subclass) and won't warn you about OversizedSymbolTableHandler until after you add the value handler.

[tgregg]

I'm fine with that. In the worst case a user will have to make two fixes, but each time the error message accurately points to a fix.

[tgregg]

Use "Squash and Merge" for this instead of the default. Single commit to master.