diff --git a/java/base.go b/java/base.go
index 8a4c64d..5b7e1df 100644
--- a/java/base.go
+++ b/java/base.go
@@ -222,6 +222,13 @@
 	// the stubs via libs, but should be set to true when the module depends on
 	// the stubs via static libs.
 	Is_stubs_module *bool
+
+	// If true, enable the "Ravenizer" tool on the output jar.
+	// "Ravenizer" is a tool for Ravenwood tests, but it can also be enabled on other kinds
+	// of java targets.
+	Ravenizer struct {
+		Enabled *bool
+	}
 }
 
 // Properties that are specific to device modules. Host module factories should not add these when
@@ -558,6 +565,10 @@
 	// List of soong module dependencies required to compile the current module.
 	// This information is printed out to `Dependencies` field in module_bp_java_deps.json
 	compileDepNames []string
+
+	ravenizer struct {
+		enabled bool
+	}
 }
 
 var _ android.InstallableModule = (*Module)(nil)
@@ -1113,7 +1124,6 @@
 }
 
 func (j *Module) compile(ctx android.ModuleContext, extraSrcJars, extraClasspathJars, extraCombinedJars android.Paths) {
-
 	// Auto-propagating jarjar rules
 	jarjarProviderData := j.collectJarJarRules(ctx)
 	if jarjarProviderData != nil {
@@ -1130,6 +1140,10 @@
 
 	j.exportAidlIncludeDirs = android.PathsForModuleSrc(ctx, j.deviceProperties.Aidl.Export_include_dirs)
 
+	if re := proptools.Bool(j.properties.Ravenizer.Enabled); re {
+		j.ravenizer.enabled = re
+	}
+
 	deps := j.collectDeps(ctx)
 	flags := j.collectBuilderFlags(ctx, deps)
 
@@ -1568,6 +1582,18 @@
 		return
 	}
 
+	if j.ravenizer.enabled {
+		ravenizerInput := outputFile
+		ravenizerOutput := android.PathForModuleOut(ctx, "ravenizer", jarName)
+		ctx.Build(pctx, android.BuildParams{
+			Rule:        ravenizer,
+			Description: "ravenizer",
+			Input:       ravenizerInput,
+			Output:      ravenizerOutput,
+		})
+		outputFile = ravenizerOutput
+	}
+
 	// Check package restrictions if necessary.
 	if len(j.properties.Permitted_packages) > 0 {
 		// Time stamp file created by the package check rule.