Remove needless toString convert & Enable checking by default

[AlbumenJ]

No description provided.

[codecov-commenter]

Codecov Report

Merging #8073 (df9b022) into 3.0 (c9f3964) will increase coverage by 0.00%.
The diff coverage is 38.46%.

@@            Coverage Diff            @@
##                3.0    #8073   +/-   ##
=========================================
  Coverage     60.84%   60.84%           
+ Complexity      313      312    -1     
=========================================
  Files          1070     1070           
  Lines         44841    44843    +2     
  Branches       6701     6702    +1     
=========================================
+ Hits          27282    27285    +3     
+ Misses        14550    14543    -7     
- Partials       3009     3015    +6     

Impacted Files	Coverage Δ
...bo/rpc/protocol/dubbo/DecodeableRpcInvocation.java	81.81% <0.00%> (+1.29%)	⬆️
.../dubbo/rpc/protocol/dubbo/DecodeableRpcResult.java	52.00% <0.00%> (+1.33%)	⬆️
.../java/org/apache/dubbo/common/utils/PojoUtils.java	72.84% <45.45%> (-0.40%)	⬇️
...ache/dubbo/remoting/transport/AbstractChannel.java	37.50% <0.00%> (-37.50%)	⬇️
.../remoting/transport/netty4/NettyServerHandler.java	61.36% <0.00%> (-9.10%)	⬇️
...he/dubbo/remoting/transport/netty/NettyServer.java	70.17% <0.00%> (-3.51%)	⬇️
...va/org/apache/dubbo/registry/RegistryNotifier.java	96.66% <0.00%> (-3.34%)	⬇️
.../client/metadata/ServiceInstanceMetadataUtils.java	72.04% <0.00%> (-2.16%)	⬇️
.../dubbo/remoting/transport/netty4/NettyChannel.java	64.35% <0.00%> (-1.99%)	⬇️
...exchange/support/header/HeaderExchangeHandler.java	63.71% <0.00%> (-1.77%)	⬇️
... and 13 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 c9f3964...df9b022. Read the comment docs.