Please help, I'm new to java and MCP failed to recompile on mac (FYI i use java 7)

Question

a0014086@ELs-computer mcp918 (7) % bash /Users/a0014086/Desktop/mcp918\\ (7)/updatemd5.sh == MCP 9.18 (data: 9.18, client: 1.8.8, server: 1.8.8) == "scalac" is not