java: add jar linking test

mesonbuild/backend/ninjabackend.py

@@ -981,8 +981,9 @@ int dummy;
             class_list.append(plain_class_path)
         class_dep_list = [os.path.join(self.get_target_private_dir(target), i) for i in class_list]
         manifest_path = os.path.join(self.get_target_private_dir(target), 'Manifest.txt')
-        os.makedirs(os.path.dirname(os.path.join(self.environment.get_build_dir(), manifest_path)), exist_ok=True)
-        with open(manifest_path, 'w') as manifest:
+        manifest_fullpath = os.path.join(self.environment.get_build_dir(), manifest_path)
+        os.makedirs(os.path.dirname(manifest_fullpath), exist_ok=True)
+        with open(manifest_fullpath, 'w') as manifest:
             if any(target.link_targets):
                 manifest.write('Class-Path: ')
                 cp_paths = [os.path.join(self.get_target_dir(l), l.get_filename()) for l in target.link_targets]
@@ -994,7 +995,6 @@ int dummy;
         if e != '':
             commands.append(main_class)
         commands.append(self.get_target_filename(target))
-        commands.append(manifest_path)
         # Java compilation can produce an arbitrary number of output
         # class files for a single source file. Thus tell jar to just
         # grab everything in the final package.

test cases/java/7 linking/com/mesonbuild/Linking.java

@@ -0,0 +1,9 @@
+package com.mesonbuild;
+
+import com.mesonbuild.SimpleLib;
+
+class Linking {
+    public static void main(String [] args) {
+        SimpleLib.func();
+    }
+}

test cases/java/7 linking/meson.build

@@ -0,0 +1,8 @@
+project('linkingjava', 'java')
+
+subdir('sub')
+
+javaprog = jar('myprog', 'com/mesonbuild/Linking.java',
+  main_class : 'com.mesonbuild.Linking',
+  link_with : simplelib)
+test('mytest', javaprog)

test cases/java/7 linking/sub/com/mesonbuild/SimpleLib.java

@@ -0,0 +1,7 @@
+package com.mesonbuild;
+
+public class SimpleLib {
+    public static void func() {
+        System.out.println("Java linking is working.\n");
+    }
+}

test cases/java/7 linking/sub/meson.build

@@ -0,0 +1,2 @@
+simplelib = jar('simplelib',
+ 'com/mesonbuild/SimpleLib.java')