diff --git a/tests/bar/1.0/Android.bp b/tests/bar/1.0/Android.bp
index b862c9b..be286b5 100644
--- a/tests/bar/1.0/Android.bp
+++ b/tests/bar/1.0/Android.bp
@@ -92,6 +92,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.bar@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -124,7 +129,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.bar@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/baz/1.0/Android.bp b/tests/baz/1.0/Android.bp
index 41b6ef2..6281ddc 100644
--- a/tests/baz/1.0/Android.bp
+++ b/tests/baz/1.0/Android.bp
@@ -84,6 +84,35 @@
 }
 
 genrule {
+    name: "android.hardware.tests.baz-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.baz@1.0",
+    srcs: [
+        ":android.hardware.tests.baz@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/baz/V1_0/IBase.java",
+        "android/hardware/tests/baz/V1_0/IBaz.java",
+        "android/hardware/tests/baz/V1_0/IBazCallback.java",
+        "android/hardware/tests/baz/V1_0/IQuux.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.baz-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.baz-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.baz@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.baz@1.0",
@@ -113,7 +142,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.baz@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/baz/1.0/Android.mk b/tests/baz/1.0/Android.mk
deleted file mode 100644
index 603e552..0000000
--- a/tests/baz/1.0/Android.mk
+++ /dev/null
@@ -1,104 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.baz-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IBase.hal
-#
-GEN := $(intermediates)/android/hardware/tests/baz/V1_0/IBase.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IBase.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.baz@1.0::IBase
-
-$(GEN): $(LOCAL_PATH)/IBase.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IBaz.hal
-#
-GEN := $(intermediates)/android/hardware/tests/baz/V1_0/IBaz.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IBaz.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IBase.hal
-$(GEN): $(LOCAL_PATH)/IBase.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IBazCallback.hal
-$(GEN): $(LOCAL_PATH)/IBazCallback.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.baz@1.0::IBaz
-
-$(GEN): $(LOCAL_PATH)/IBaz.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IBazCallback.hal
-#
-GEN := $(intermediates)/android/hardware/tests/baz/V1_0/IBazCallback.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IBazCallback.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.baz@1.0::IBazCallback
-
-$(GEN): $(LOCAL_PATH)/IBazCallback.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IQuux.hal
-#
-GEN := $(intermediates)/android/hardware/tests/baz/V1_0/IQuux.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IQuux.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.baz@1.0::IQuux
-
-$(GEN): $(LOCAL_PATH)/IQuux.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/expression/1.0/Android.bp b/tests/expression/1.0/Android.bp
index bbb6f33..6209549 100644
--- a/tests/expression/1.0/Android.bp
+++ b/tests/expression/1.0/Android.bp
@@ -66,6 +66,33 @@
 }
 
 genrule {
+    name: "android.hardware.tests.expression-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.expression@1.0",
+    srcs: [
+        ":android.hardware.tests.expression@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/expression/V1_0/IExpression.java",
+        "android/hardware/tests/expression/V1_0/IExpressionExt.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.expression-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.expression-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.expression@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.expression@1.0",
@@ -91,7 +118,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.expression@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/expression/1.0/Android.mk b/tests/expression/1.0/Android.mk
deleted file mode 100644
index 7f716fd..0000000
--- a/tests/expression/1.0/Android.mk
+++ /dev/null
@@ -1,64 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.expression-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IExpression.hal
-#
-GEN := $(intermediates)/android/hardware/tests/expression/V1_0/IExpression.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IExpression.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.expression@1.0::IExpression
-
-$(GEN): $(LOCAL_PATH)/IExpression.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IExpressionExt.hal
-#
-GEN := $(intermediates)/android/hardware/tests/expression/V1_0/IExpressionExt.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IExpressionExt.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IExpression.hal
-$(GEN): $(LOCAL_PATH)/IExpression.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.expression@1.0::IExpressionExt
-
-$(GEN): $(LOCAL_PATH)/IExpressionExt.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/extension/light/2.0/Android.bp b/tests/extension/light/2.0/Android.bp
index 07dcea3..796e256 100644
--- a/tests/extension/light/2.0/Android.bp
+++ b/tests/extension/light/2.0/Android.bp
@@ -65,6 +65,36 @@
 }
 
 genrule {
+    name: "android.hardware.tests.extension.light-V2.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.extension.light@2.0",
+    srcs: [
+        ":android.hardware.tests.extension.light@2.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/extension/light/V2_0/Default.java",
+        "android/hardware/tests/extension/light/V2_0/ExtBrightness.java",
+        "android/hardware/tests/extension/light/V2_0/ExtLightState.java",
+        "android/hardware/tests/extension/light/V2_0/IExtLight.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.extension.light-V2.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.extension.light-V2.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hardware.light-V2.0-java",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.extension.light@2.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.extension.light@2.0",
@@ -88,7 +118,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.extension.light@2.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/extension/light/2.0/Android.mk b/tests/extension/light/2.0/Android.mk
deleted file mode 100644
index 485230b..0000000
--- a/tests/extension/light/2.0/Android.mk
+++ /dev/null
@@ -1,103 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.extension.light-V2.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hardware.light-V2.0-java \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build types.hal (Default)
-#
-GEN := $(intermediates)/android/hardware/tests/extension/light/V2_0/Default.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.extension.light@2.0::types.Default
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build types.hal (ExtBrightness)
-#
-GEN := $(intermediates)/android/hardware/tests/extension/light/V2_0/ExtBrightness.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.extension.light@2.0::types.ExtBrightness
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build types.hal (ExtLightState)
-#
-GEN := $(intermediates)/android/hardware/tests/extension/light/V2_0/ExtLightState.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.extension.light@2.0::types.ExtLightState
-
-$(GEN): $(LOCAL_PATH)/types.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IExtLight.hal
-#
-GEN := $(intermediates)/android/hardware/tests/extension/light/V2_0/IExtLight.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IExtLight.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/types.hal
-$(GEN): $(LOCAL_PATH)/types.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.extension.light@2.0::IExtLight
-
-$(GEN): $(LOCAL_PATH)/IExtLight.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/foo/1.0/Android.bp b/tests/foo/1.0/Android.bp
index 51b5dc6..3130270 100644
--- a/tests/foo/1.0/Android.bp
+++ b/tests/foo/1.0/Android.bp
@@ -90,6 +90,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.foo@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -122,7 +127,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.foo@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/hash/1.0/Android.bp b/tests/hash/1.0/Android.bp
index ffff051..3d5822f 100644
--- a/tests/hash/1.0/Android.bp
+++ b/tests/hash/1.0/Android.bp
@@ -59,6 +59,32 @@
 }
 
 genrule {
+    name: "android.hardware.tests.hash-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.hash@1.0",
+    srcs: [
+        ":android.hardware.tests.hash@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/hash/V1_0/IHash.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.hash-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.hash-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.hash@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.hash@1.0",
@@ -82,7 +108,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.hash@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/hash/1.0/Android.mk b/tests/hash/1.0/Android.mk
deleted file mode 100644
index 94a594e..0000000
--- a/tests/hash/1.0/Android.mk
+++ /dev/null
@@ -1,43 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.hash-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IHash.hal
-#
-GEN := $(intermediates)/android/hardware/tests/hash/V1_0/IHash.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IHash.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.hash@1.0::IHash
-
-$(GEN): $(LOCAL_PATH)/IHash.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/inheritance/1.0/Android.bp b/tests/inheritance/1.0/Android.bp
index bd34512..6b8c27e 100644
--- a/tests/inheritance/1.0/Android.bp
+++ b/tests/inheritance/1.0/Android.bp
@@ -80,6 +80,35 @@
 }
 
 genrule {
+    name: "android.hardware.tests.inheritance-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.inheritance@1.0",
+    srcs: [
+        ":android.hardware.tests.inheritance@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/inheritance/V1_0/IChild.java",
+        "android/hardware/tests/inheritance/V1_0/IFetcher.java",
+        "android/hardware/tests/inheritance/V1_0/IGrandparent.java",
+        "android/hardware/tests/inheritance/V1_0/IParent.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.inheritance-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.inheritance-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.inheritance@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.inheritance@1.0",
@@ -109,7 +138,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.inheritance@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/inheritance/1.0/Android.mk b/tests/inheritance/1.0/Android.mk
deleted file mode 100644
index f01b978..0000000
--- a/tests/inheritance/1.0/Android.mk
+++ /dev/null
@@ -1,110 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.inheritance-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IChild.hal
-#
-GEN := $(intermediates)/android/hardware/tests/inheritance/V1_0/IChild.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IChild.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IParent.hal
-$(GEN): $(LOCAL_PATH)/IParent.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.inheritance@1.0::IChild
-
-$(GEN): $(LOCAL_PATH)/IChild.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IFetcher.hal
-#
-GEN := $(intermediates)/android/hardware/tests/inheritance/V1_0/IFetcher.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IFetcher.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IChild.hal
-$(GEN): $(LOCAL_PATH)/IChild.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IGrandparent.hal
-$(GEN): $(LOCAL_PATH)/IGrandparent.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IParent.hal
-$(GEN): $(LOCAL_PATH)/IParent.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.inheritance@1.0::IFetcher
-
-$(GEN): $(LOCAL_PATH)/IFetcher.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IGrandparent.hal
-#
-GEN := $(intermediates)/android/hardware/tests/inheritance/V1_0/IGrandparent.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IGrandparent.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.inheritance@1.0::IGrandparent
-
-$(GEN): $(LOCAL_PATH)/IGrandparent.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IParent.hal
-#
-GEN := $(intermediates)/android/hardware/tests/inheritance/V1_0/IParent.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IParent.hal
-$(GEN): PRIVATE_DEPS += $(LOCAL_PATH)/IGrandparent.hal
-$(GEN): $(LOCAL_PATH)/IGrandparent.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.inheritance@1.0::IParent
-
-$(GEN): $(LOCAL_PATH)/IParent.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/libhwbinder/1.0/Android.bp b/tests/libhwbinder/1.0/Android.bp
index 139aec5..0aff0e9 100644
--- a/tests/libhwbinder/1.0/Android.bp
+++ b/tests/libhwbinder/1.0/Android.bp
@@ -66,6 +66,33 @@
 }
 
 genrule {
+    name: "android.hardware.tests.libhwbinder-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.libhwbinder@1.0",
+    srcs: [
+        ":android.hardware.tests.libhwbinder@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/libhwbinder/V1_0/IBenchmark.java",
+        "android/hardware/tests/libhwbinder/V1_0/IScheduleTest.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.libhwbinder-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.libhwbinder-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.libhwbinder@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.libhwbinder@1.0",
@@ -91,7 +118,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.libhwbinder@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/libhwbinder/1.0/Android.mk b/tests/libhwbinder/1.0/Android.mk
deleted file mode 100644
index 1ac7681..0000000
--- a/tests/libhwbinder/1.0/Android.mk
+++ /dev/null
@@ -1,62 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.libhwbinder-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IBenchmark.hal
-#
-GEN := $(intermediates)/android/hardware/tests/libhwbinder/V1_0/IBenchmark.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IBenchmark.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.libhwbinder@1.0::IBenchmark
-
-$(GEN): $(LOCAL_PATH)/IBenchmark.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-
-#
-# Build IScheduleTest.hal
-#
-GEN := $(intermediates)/android/hardware/tests/libhwbinder/V1_0/IScheduleTest.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IScheduleTest.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.libhwbinder@1.0::IScheduleTest
-
-$(GEN): $(LOCAL_PATH)/IScheduleTest.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/memory/1.0/Android.bp b/tests/memory/1.0/Android.bp
index 5653e97..0af8b65 100644
--- a/tests/memory/1.0/Android.bp
+++ b/tests/memory/1.0/Android.bp
@@ -58,6 +58,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.memory@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -82,7 +87,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.memory@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/msgq/1.0/Android.bp b/tests/msgq/1.0/Android.bp
index 39a34cb..c30553d 100644
--- a/tests/msgq/1.0/Android.bp
+++ b/tests/msgq/1.0/Android.bp
@@ -65,6 +65,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.msgq@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -91,7 +96,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.msgq@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/multithread/1.0/Android.bp b/tests/multithread/1.0/Android.bp
index 98cbd5e..cebf90e 100644
--- a/tests/multithread/1.0/Android.bp
+++ b/tests/multithread/1.0/Android.bp
@@ -59,6 +59,32 @@
 }
 
 genrule {
+    name: "android.hardware.tests.multithread-V1.0-java_gen_java",
+    tools: ["hidl-gen"],
+    cmd: "$(location hidl-gen) -o $(genDir) -Ljava -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.multithread@1.0",
+    srcs: [
+        ":android.hardware.tests.multithread@1.0_hal",
+    ],
+    out: [
+        "android/hardware/tests/multithread/V1_0/IMultithread.java",
+    ],
+}
+
+java_library {
+    name: "android.hardware.tests.multithread-V1.0-java",
+    no_framework_libs: true,
+    defaults: ["hidl-java-module-defaults"],
+    srcs: [":android.hardware.tests.multithread-V1.0-java_gen_java"],
+    libs: [
+        "hwbinder",
+        "android.hidl.base-V1.0-java",
+    ]
+}
+
+// This package does not export any types. Not creating java constants export.
+
+
+genrule {
     name: "android.hardware.tests.multithread@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
     cmd: "$(location hidl-gen) -o $(genDir) -Lc++-adapter-sources -randroid.hardware:hardware/interfaces -randroid.hidl:system/libhidl/transport android.hardware.tests.multithread@1.0",
@@ -82,7 +108,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.multithread@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/multithread/1.0/Android.mk b/tests/multithread/1.0/Android.mk
deleted file mode 100644
index a2d2b10..0000000
--- a/tests/multithread/1.0/Android.mk
+++ /dev/null
@@ -1,43 +0,0 @@
-# This file is autogenerated by hidl-gen. Do not edit manually.
-
-LOCAL_PATH := $(call my-dir)
-
-################################################################################
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := android.hardware.tests.multithread-V1.0-java
-LOCAL_MODULE_CLASS := JAVA_LIBRARIES
-
-intermediates := $(call local-generated-sources-dir, COMMON)
-
-HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
-
-LOCAL_JAVA_LIBRARIES := \
-    android.hidl.base-V1.0-java \
-
-LOCAL_NO_STANDARD_LIBRARIES := true
-LOCAL_JAVA_LIBRARIES += core-oj hwbinder
-
-#
-# Build IMultithread.hal
-#
-GEN := $(intermediates)/android/hardware/tests/multithread/V1_0/IMultithread.java
-$(GEN): $(HIDL)
-$(GEN): PRIVATE_HIDL := $(HIDL)
-$(GEN): PRIVATE_DEPS := $(LOCAL_PATH)/IMultithread.hal
-$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
-$(GEN): PRIVATE_CUSTOM_TOOL = \
-        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
-        -Ljava \
-        -randroid.hardware:hardware/interfaces \
-        -randroid.hidl:system/libhidl/transport \
-        android.hardware.tests.multithread@1.0::IMultithread
-
-$(GEN): $(LOCAL_PATH)/IMultithread.hal
-	$(transform-generated-source)
-LOCAL_GENERATED_SOURCES += $(GEN)
-include $(BUILD_JAVA_LIBRARY)
-
-
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tests/pointer/1.0/Android.bp b/tests/pointer/1.0/Android.bp
index 2c13cb1..34cbaa9 100644
--- a/tests/pointer/1.0/Android.bp
+++ b/tests/pointer/1.0/Android.bp
@@ -65,6 +65,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.pointer@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -91,7 +96,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.pointer@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],
diff --git a/tests/trie/1.0/Android.bp b/tests/trie/1.0/Android.bp
index 73f1b0b..be45d12 100644
--- a/tests/trie/1.0/Android.bp
+++ b/tests/trie/1.0/Android.bp
@@ -62,6 +62,11 @@
     ],
 }
 
+// This package is not java compatible. Not creating java target.
+
+// This package does not export any types. Not creating java constants export.
+
+
 genrule {
     name: "android.hardware.tests.trie@1.0-adapter-helper_genc++",
     tools: ["hidl-gen"],
@@ -86,7 +91,6 @@
     ],
 }
 
-
 cc_library {
     name: "android.hardware.tests.trie@1.0-adapter-helper",
     defaults: ["hidl-module-defaults"],