feat(run): reuse the configuration of a main class run from its context (#783)

Running or debugging a main class from the editor, gutter or Project view now selects an existing saved Application or Spring Boot configuration of the same main class and module, keeping its VM options, environment and profiles, instead of creating a temporary one.

Co-authored-by: ntbang0901 <[email protected]>

src/features/run/java.test.ts

@@ -395,6 +395,25 @@ describe("temporary configurations", () => {
     expect(useRun.getState().temporary).toEqual([]);
   });
 
+  it("reuse a configuration of the same main class and module, whatever its id", () => {
+    const own = (module: string) =>
+      cfg({
+        id: `user:${module}`,
+        kind: "spring-boot",
+        name: `Mine ${module}`,
+        args: ["-Xmx1g", "-cp", "${classpath}", "a.Main"],
+        module,
+        detected: false,
+      });
+    useRun.setState({ configs: [own("other"), own("app")] });
+    expect(adoptTemporary(applicationConfig({ className: "a.Main" }, "app/src/main/java/a/Main.java")).name).toBe(
+      "Mine app",
+    );
+    expect(useRun.getState().temporary).toEqual([]);
+    const fresh = adoptTemporary(applicationConfig({ className: "a.Other" }, "app/src/main/java/a/Other.java"));
+    expect(useRun.getState().temporary).toEqual([fresh.id]);
+  });
+
   it("offer Save in the chooser while selected", async () => {
     const app = adoptTemporary(applicationConfig({ className: "a.Main" }, "src/main/java/a/Main.java"));
     const { configs, temporary } = useRun.getState();