Java acp depends upon a very old mcp-json 0.14.1 incompatible with modern mcp-core versions 0.18...

[darengrant]

The java-sdk is built against mcp-json 0.14.1 and uses McpJsonMapper.getDefault() in many places which is not compatible with modern versions of mcp-core within which McpJsonMapper has no getDefault() method.

In a Project that uses mcp-core v 0.18.0 or newer the current acp java-sdk fails with NoSuchMethodErrors in a number of places.