Fix built messge datasource streaming exception

[chamil321]

Purpose

Fixes ballerina-platform/ballerina-library#1333

Examples

Checklist

• Linked to an issue
• Updated the changelog
• Added tests

[codecov]

Codecov Report

Merging #374 (51b8bf3) into master (dc49c99) will increase coverage by 1.30%.
The diff coverage is 75.00%.

@@             Coverage Diff              @@
##             master     #374      +/-   ##
============================================
+ Coverage     75.28%   76.58%   +1.30%     
  Complexity       62       62              
============================================
  Files           330      329       -1     
  Lines         16873    16779      -94     
  Branches       3784     3773      -11     
============================================
+ Hits          12703    12851     +148     
+ Misses         3426     3206     -220     
+ Partials        744      722      -22     

Impacted Files	Coverage Δ	Complexity Δ
...t/http/nativeimpl/ExternHttpDataSourceBuilder.java	84.07% <75.00%> (+0.43%)	0.00 <0.00> (ø)
http-ballerina/http_annotation.bal	100.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
...nalang/net/transport/contractimpl/common/Util.java	72.65% <0.00%> (ø)	0.00% <0.00%> (ø%)
...lerinalang/net/uri/parser/DotSuffixExpression.java
http-ballerina/auth_desugar.bal	87.50% <0.00%> (+1.13%)	0.00% <0.00%> (ø%)
...ng/net/http/client/actions/AbstractHTTPAction.java	66.12% <0.00%> (+1.20%)	0.00% <0.00%> (ø%)
.../http/nativeimpl/pipelining/PipeliningHandler.java	74.07% <0.00%> (+1.34%)	0.00% <0.00%> (ø%)
...t/http/client/endpoint/CreateSimpleHttpClient.java	86.66% <0.00%> (+1.88%)	0.00% <0.00%> (ø%)
...allerinalang/net/uri/parser/URITemplateParser.java	64.40% <0.00%> (+2.11%)	0.00% <0.00%> (ø%)
...transport/message/Http2InboundContentListener.java	53.84% <0.00%> (+2.56%)	0.00% <0.00%> (ø%)
... and 32 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update dc49c99...51b8bf3. Read the comment docs.