fix: typo in gu post-install actions

- fix: `startsWith` should be `startswith`
- test: update `components-ce` test to include component usage

Thank you to @mantasindrasius!

Signed-off-by: Sam Gammon <sam@elide.ventures>

example/integration_tests/components-ce/.bazelrc

@@ -1 +1,3 @@
 build --enable_bzlmod
+build --java_runtime_version=graalvm_20
+build --tool_java_runtime_version=graalvm_20

example/integration_tests/components-ce/MODULE.bazel

@@ -7,7 +7,7 @@ module(
 
 bazel_dep(
     name = "rules_java",
-    version = "6.5.0",
+    version = "6.4.0",
 )
 bazel_dep(
     name = "rules_graalvm",

example/integration_tests/components-ce/sample/BUILD.bazel

@@ -20,6 +20,9 @@ native_image(
     name = "main-native",
     main_class = "Main",
     deps = [":java"],
+    extra_args = [
+        "--language:js",
+    ],
 )
 
 alias(

example/integration_tests/components-ce/sample/Main.java

@@ -1,5 +1,17 @@
+import org.graalvm.polyglot.Context;
+
+import java.io.BufferedOutputStream;
+import java.io.OutputStream;
+
+
 public class Main {
     public static void main(String args[]) {
-        System.out.println("Hello, GraalVM!");
+        OutputStream myOut = new BufferedOutputStream(System.out);
+        Context context = Context.newBuilder("js")
+                .out(myOut)
+                .allowAllAccess(true)
+                .build();
+        context.eval("js", "42");
+        context.close();
     }
-}
+}

internal/graalvm_bindist.bzl

@@ -110,7 +110,7 @@ def _graal_postinstall_actions(ctx, os):
     cmd = _graal_updater_path(os)
     if ctx.attr.setup_actions and len(ctx.attr.setup_actions) > 0:
         for action in ctx.attr.setup_actions:
-            if not action.startsWith("gu "):
+            if not action.startswith("gu "):
                 fail("GraalVM setup action did not start with 'gu'. Please only run GraalVM updater commands.")
 
             action_cmd = action.replace("gu ", "").split(" ")