JDK HTTP Client-based client transport for Streamable HTTP. **Expected Behavior** <!--- Tell us how it should work. Add a code example to explain what you think the feature should look like. This is optional, but it would help up understand your expectations. --> **Current Behavior** <!--- Explain the difference from current behavior and why do you need this feature (aka why it is not possible to implement the desired functionality with the current version) --> **Context** <!--- How has this issue affected you? What are you trying to accomplish? What other alternatives have you considered? Are you aware of any workarounds? --> Related https://github.com/modelcontextprotocol/java-sdk/issues/72