Use soong_javac_wrapper in soong javac compiles
Test: m checkbuild
Change-Id: I0f9ff0a719ac550a011c2878fc51595dc3427aed
diff --git a/cmd/javac_wrapper/javac_wrapper.go b/cmd/javac_wrapper/javac_wrapper.go
index a86f1e9..4df4938 100644
--- a/cmd/javac_wrapper/javac_wrapper.go
+++ b/cmd/javac_wrapper/javac_wrapper.go
@@ -17,6 +17,11 @@
//
// It also hides the unhelpful and unhideable "warning there is a warning"
// messages.
+//
+// Each javac build statement has an order-only dependency on the
+// soong_javac_wrapper tool, which means the javac command will not be rerun
+// if soong_javac_wrapper changes. That means that soong_javac_wrapper must
+// not do anything that will affect the results of the build.
package main
import (