feat: context provider apis support

jdtls.ext/com.microsoft.jdtls.ext.core/plugin.xml

@@ -10,6 +10,7 @@
             <command id="java.project.getMainClasses" />
             <command id="java.project.generateJar" />
             <command id="java.project.checkImportStatus" />
+            <command id="java.project.getImportClassContent" />
         </delegateCommandHandler>
     </extension>
     <extension

jdtls.ext/com.microsoft.jdtls.ext.core/src/com/microsoft/jdtls/ext/core/CommandHandler.java

@@ -37,6 +37,8 @@ public Object executeCommand(String commandId, List<Object> arguments, IProgress
                     return ProjectCommand.exportJar(arguments, monitor);
                 case "java.project.checkImportStatus":
                     return ProjectCommand.checkImportStatus();
+                case "java.project.getImportClassContent":
+                    return ProjectCommand.getImportClassContent(arguments, monitor);
                 default:
                     break;
             }

package.json

@@ -1082,6 +1082,7 @@
     "webpack-cli": "^4.10.0"
   },
   "dependencies": {
+    "@github/copilot-language-server": "^1.316.0",
     "await-lock": "^2.2.2",
     "fmtr": "^1.1.4",
     "fs-extra": "^10.1.0",

src/commands.ts

@@ -114,6 +114,8 @@ export namespace Commands {
 
     export const JAVA_PROJECT_GETMAINCLASSES = "java.project.getMainClasses";
 
+    export const JAVA_PROJECT_GETIMPORTCLASSCONTENT = "java.project.getImportClassContent";
+
     export const JAVA_PROJECT_GENERATEJAR = "java.project.generateJar";
 
     export const JAVA_BUILD_WORKSPACE = "java.workspace.compile";