Make inter JVM communication be string based

1 files changed, 34 insertions, 0 deletions

diff --git a/compiler/test/dotty/tools/vulpix/ChildJVMMain.java b/compiler/test/dotty/tools/vulpix/ChildJVMMain.java
new file mode 100644
index 000000000..90b795898
--- /dev/null
+++ b/compiler/test/dotty/tools/vulpix/ChildJVMMain.java
@@ -0,0 +1,34 @@
+package dotty.tools.vulpix;
+
+import java.io.File;
+import java.io.InputStreamReader;
+import java.io.BufferedReader;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.lang.reflect.Method;
+
+public class ChildJVMMain {
+    static final String MessageEnd = "##THIS IS THE END FOR ME, GOODBYE##";
+
+    private static void runMain(String dir) throws Exception {
+        ArrayList<URL> cp = new ArrayList<>();
+        for (String path : dir.split(":"))
+            cp.add(new File(path).toURI().toURL());
+
+        URLClassLoader ucl = new URLClassLoader(cp.toArray(new URL[cp.size()]));
+        Class<?> cls = ucl.loadClass("Test");
+        Method meth = cls.getMethod("main", String[].class);
+        Object[] args = new Object[]{ new String[]{ "jvm" } };
+        meth.invoke(null, args);
+    }
+
+    public static void main(String[] args) throws Exception {
+      BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
+
+      while (true) {
+          runMain(stdin.readLine());
+          System.out.println(MessageEnd);
+      }
+    }
+}