JRUBY-4709: Add trailing sep to classpath to make sure PWD is included (like jruby.sh)

Author: nicksieger

argparser.cpp

@@ -477,6 +477,11 @@ void ArgParser::constructClassPath() {
         classPath += cpAfter;
     }
 
+    // JRUBY-4709: Include this by default to have PWD as part of classpath
+    if (!classPath.empty()) {
+        classPath += PATH_SEP;
+    }
+
     logMsg("ClassPath: %s", classPath.c_str());
 }
 

spec/launcher_spec.rb

@@ -148,10 +148,16 @@
     jruby_launcher("-Xjdkhome '' 2>&1").should =~ /-Xjdkhome/
   end
 
+  # JRUBY-4706
   it "should put JRuby on regular classpath when -Xnobootclasspath is used" do
     args = jruby_launcher_args("-e true")
     args.grep(/Xbootclasspath/).should_not be_empty
     args = jruby_launcher_args("-Xnobootclasspath -e true")
     args.grep(/Xbootclasspath/).should be_empty
   end
+
+  # JRUBY-4709
+  it "should include a bare : at the end of the classpath, to include PWD in the path" do
+    jruby_launcher_args("-Xnobootclasspath -e true").grep(/java\.class\.path/).first.should =~ /:$/
+  end
 end