Make Java compilation work with inner classes. Closes #1157.

mesonbuild/backend/ninjabackend.py

@@ -803,8 +803,10 @@ int dummy;
         if e != '':
             commands.append(main_class)
         commands.append(self.get_target_filename(target))
-        for cls in class_list:
-            commands += ['-C', self.get_target_private_dir(target), cls]
+        # 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.
+        commands += ['-C', self.get_target_private_dir(target), '.']
         elem = NinjaBuildElement(self.all_outputs, outname_rel, jar_rule, [])
         elem.add_dep(class_dep_list)
         elem.add_item('ARGS', commands)

test cases/java/4 inner class/com/mesonbuild/Simple.java

@@ -0,0 +1,15 @@
+package com.mesonbuild;
+
+class Simple {
+    class Inner {
+        public String getString() {
+            return "Inner class is working.\n";
+        }
+    }
+
+    public static void main(String [] args) {
+        Simple s = new Simple();
+        Simple.Inner ic = s.new Inner();
+        System.out.println(ic.getString());
+    }
+}

test cases/java/4 inner class/meson.build

@@ -0,0 +1,5 @@
+project('simplejava', 'java')
+
+javaprog = jar('myprog', 'com/mesonbuild/Simple.java',
+  main_class : 'com.mesonbuild.Simple')
+test('mytest', javaprog)