Added a default lsp server for Java in languages.toml (#2511)

* Added a default lsp server for Java in languages.toml

* Added a default lsp server for Java in languages.toml cont.

Co-authored-by: Jacob Thompson <a01657923@usu.edu>

book/src/generated/lang-support.md

@@ -38,7 +38,7 @@
 | heex | ✓ |  |  |  |
 | html | ✓ |  |  | `vscode-html-language-server` |
 | iex | ✓ |  |  |  |
-| java | ✓ |  |  |  |
+| java | ✓ |  |  | `jdtls` |
 | javascript | ✓ |  | ✓ | `typescript-language-server` |
 | json | ✓ |  | ✓ | `vscode-json-language-server` |
 | jsx | ✓ |  | ✓ | `typescript-language-server` |

languages.toml

@@ -551,6 +551,7 @@ scope = "source.java"
 injection-regex = "java"
 file-types = ["java"]
 roots = ["pom.xml"]
+language-server = { command = "jdtls" }
 indent = { tab-width = 4, unit = "    " }
 
 [[grammar]]