Java FFI: fix a few warnings and improve doc

[nit.git] / src / ffi / java.nit

diff --git a/src/ffi/java.nit b/src/ffi/java.nit
index 0dd65be..a222885 100644 (file)
--- a/src/ffi/java.nit
+++ b/src/ffi/java.nit
@@ -165,6 +165,9 @@ class JavaLanguage
 
        redef fun compile_to_files(mmodule, compdir)
        do
+               var ffi_ccu = ffi_ccu
+               assert ffi_ccu != null
+
                # Make sure we have a .java file
                mmodule.ensure_java_files
 
@@ -172,7 +175,7 @@ class JavaLanguage
                mmodule.insert_compiler_options
 
                # Enable linking C callbacks to java native methods
-               mmodule.ensure_linking_callback_methods(ffi_ccu.as(not null))
+               mmodule.ensure_linking_callback_methods(ffi_ccu)
 
                # Java implementation code
                var java_file = mmodule.java_file
@@ -343,7 +346,7 @@ class JavaClassTemplate
        fun write_to_files(compdir: String): ExternFile
        do
                var filename = "{java_class_name}.java"
-               var filepath = "{compdir}/{filename}"
+               var filepath = compdir/filename
 
                write_to_file filepath