Apply hiddenapi encoding to java_sdk_library .impl

Adds a ConfigurationName property, and ConfigurationName() method that
allows a library to separate its name (e.g. framework-tethering.impl)
from the name used in the build configuration,
    e.g. ctx.Config().BootJars().

Updates hiddenapi processing to use ConfigurationName() instead of
ctx.ModuleName().

Changes java_sdk_library to set the ConfigurationName property
of the implementation library to the name of the module instead of
<module>.impl so that it will match the name in the boot jars list.

Bug: 159683330
Test: m framework-tethering
      dexdump ${PRODUCT_OUT}/apex/com.android.tethering/javalib/framework-tethering.jar | grep hiddenapi | wc -l
      Verify that there are >0 hiddenapi entries.
      Add java_sdk_library_import prefer=true for framework-tethering
      and repeat the above to verify that there are 0 hiddenapi entries.
      Apply this change, repeat above and verify that there are the same # of entries as before.
      Remove the prebuilt for framework-tethering
      Repeat the above and verify that there is no change to the # of entries
Merged-In: I6c3016c35d0fcb1b95d4f9b37a307a69878f8e0a
Change-Id: I6c3016c35d0fcb1b95d4f9b37a307a69878f8e0a
(cherry picked from commit c4422106a7cf4731e27d664646bc0d57ad3f37fa)

1 files changed, 9 insertions, 3 deletions

diff --git a/java/hiddenapi.go b/java/hiddenapi.go
index ce624bfc1..130b63496 100644
--- a/java/hiddenapi.go
+++ b/java/hiddenapi.go
@@ -59,10 +59,9 @@ type hiddenAPIIntf interface {
 
 var _ hiddenAPIIntf = (*hiddenAPI)(nil)
 
-func (h *hiddenAPI) hiddenAPI(ctx android.ModuleContext, dexJar android.ModuleOutPath,
+func (h *hiddenAPI) hiddenAPI(ctx android.ModuleContext, name string, primary bool, dexJar android.ModuleOutPath,
 	implementationJar android.Path, uncompressDex bool) android.ModuleOutPath {
 	if !ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
-		name := ctx.ModuleName()
 
 		// Modules whose names are of the format <x>-hiddenapi provide hiddenapi information
 		// for the boot jar module <x>. Otherwise, the module provides information for itself.
@@ -90,7 +89,14 @@ func (h *hiddenAPI) hiddenAPI(ctx android.ModuleContext, dexJar android.ModuleOu
 			// the gathered information in the generated dex file.
 			if name == bootJarName {
 				hiddenAPIJar := android.PathForModuleOut(ctx, "hiddenapi", name+".jar")
-				h.bootDexJarPath = dexJar
+
+				// More than one library with the same classes can be encoded but only one can
+				// be added to the global set of flags, otherwise it will result in duplicate
+				// classes which is an error. Therefore, only add the dex jar of one of them
+				// to the global set of flags.
+				if primary {
+					h.bootDexJarPath = dexJar
+				}
 				hiddenAPIEncodeDex(ctx, hiddenAPIJar, dexJar, uncompressDex)
 				dexJar = hiddenAPIJar
 			}