Fixing order of attributes

toolchains/default_java_toolchain.bzl

diff --git a/toolchains/default_java_toolchain.bzl b/toolchains/default_java_toolchain.bzl
index 343adaf..abb68ba 100644
--- a/toolchains/default_java_toolchain.bzl
+++ b/toolchains/default_java_toolchain.bzl
@@ -253,6 +253,7 @@
             cfg = "exec",
             providers = [java_common.JavaRuntimeInfo],
         ),
+        "output_jar": attr.output(mandatory = True),
         "src": attr.label(
             cfg = "exec",
             allow_single_file = True,
@@ -260,7 +261,6 @@
         "target_javabase": attr.label(
             providers = [java_common.JavaRuntimeInfo],
         ),
-        "output_jar": attr.output(mandatory = True),
     },
 )