diff --git a/android/allowlists/allowlists.go b/android/allowlists/allowlists.go
index 26cfd5725..28dc8b452 100644
--- a/android/allowlists/allowlists.go
+++ b/android/allowlists/allowlists.go
@@ -104,12 +104,14 @@ var (
 		"external/google-benchmark":                          Bp2BuildDefaultTrueRecursively,
 		"external/googletest":                                Bp2BuildDefaultTrueRecursively,
 		"external/gwp_asan":                                  Bp2BuildDefaultTrueRecursively,
+		"external/hamcrest":                                  Bp2BuildDefaultTrueRecursively,
 		"external/icu":                                       Bp2BuildDefaultTrueRecursively,
 		"external/icu/android_icu4j":                         Bp2BuildDefaultFalse, // java rules incomplete
 		"external/icu/icu4j":                                 Bp2BuildDefaultFalse, // java rules incomplete
 		"external/javapoet":                                  Bp2BuildDefaultTrueRecursively,
 		"external/jemalloc_new":                              Bp2BuildDefaultTrueRecursively,
 		"external/jsoncpp":                                   Bp2BuildDefaultTrueRecursively,
+		"external/junit":                                     Bp2BuildDefaultTrueRecursively,
 		"external/libcap":                                    Bp2BuildDefaultTrueRecursively,
 		"external/libcxx":                                    Bp2BuildDefaultTrueRecursively,
 		"external/libcxxabi":                                 Bp2BuildDefaultTrueRecursively,
@@ -122,6 +124,7 @@ var (
 		"external/pcre":                                      Bp2BuildDefaultTrueRecursively,
 		"external/protobuf":                                  Bp2BuildDefaultTrueRecursively,
 		"external/python/six":                                Bp2BuildDefaultTrueRecursively,
+		"external/rappor":                                    Bp2BuildDefaultTrueRecursively,
 		"external/scudo":                                     Bp2BuildDefaultTrueRecursively,
 		"external/selinux/libselinux":                        Bp2BuildDefaultTrueRecursively,
 		"external/selinux/libsepol":                          Bp2BuildDefaultTrueRecursively,
diff --git a/bp2build/android_app_conversion_test.go b/bp2build/android_app_conversion_test.go
index 3824586c6..a216c9d11 100644
--- a/bp2build/android_app_conversion_test.go
+++ b/bp2build/android_app_conversion_test.go
@@ -74,7 +74,8 @@ android_app {
         package_name: "com.google",
         resource_dirs: ["resa", "resb"],
         manifest: "manifest/AndroidManifest.xml",
-        static_libs: ["static_lib_dep"]
+        static_libs: ["static_lib_dep"],
+        java_version: "7",
 }
 `,
 		expectedBazelTargets: []string{
@@ -87,6 +88,7 @@ android_app {
     ]`,
 				"custom_package": `"com.google"`,
 				"deps":           `[":static_lib_dep"]`,
+				"javacopts":      `["-source 1.7 -target 1.7"]`,
 			}),
 		}})
 }
diff --git a/bp2build/java_binary_host_conversion_test.go b/bp2build/java_binary_host_conversion_test.go
index 4fc07e014..d7a76a89f 100644
--- a/bp2build/java_binary_host_conversion_test.go
+++ b/bp2build/java_binary_host_conversion_test.go
@@ -52,6 +52,7 @@ func TestJavaBinaryHost(t *testing.T) {
     jni_libs: ["jni-lib-1"],
     javacflags: ["-Xdoclint:all/protected"],
     bazel_module: { bp2build_available: true },
+    java_version: "8",
 }`,
 		expectedBazelTargets: []string{
 			makeBazelTarget("java_binary", "java-binary-host-1", attrNameToString{
@@ -59,7 +60,10 @@ func TestJavaBinaryHost(t *testing.T) {
 				"main_class": `"com.android.test.MainClass"`,
 				"deps":       `["//other:jni-lib-1"]`,
 				"jvm_flags":  `["-Djava.library.path=$${RUNPATH}other"]`,
-				"javacopts":  `["-Xdoclint:all/protected"]`,
+				"javacopts": `[
+        "-Xdoclint:all/protected",
+        "-source 1.8 -target 1.8",
+    ]`,
 				"target_compatible_with": `select({
         "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
         "//conditions:default": [],
diff --git a/bp2build/java_library_conversion_test.go b/bp2build/java_library_conversion_test.go
index ccc52ef12..3b6636975 100644
--- a/bp2build/java_library_conversion_test.go
+++ b/bp2build/java_library_conversion_test.go
@@ -158,6 +158,22 @@ java_plugin {
 	})
 }
 
+func TestJavaLibraryJavaVersion(t *testing.T) {
+	runJavaLibraryTestCase(t, bp2buildTestCase{
+		blueprint: `java_library {
+    name: "java-lib-1",
+    srcs: ["a.java"],
+    java_version: "11",
+}`,
+		expectedBazelTargets: []string{
+			makeBazelTarget("java_library", "java-lib-1", attrNameToString{
+				"srcs":      `["a.java"]`,
+				"javacopts": `["-source 11 -target 11"]`,
+			}),
+		},
+	})
+}
+
 func TestJavaLibraryErrorproneJavacflagsEnabledManually(t *testing.T) {
 	runJavaLibraryTestCase(t, bp2buildTestCase{
 		blueprint: `java_library {
diff --git a/bp2build/java_library_host_conversion_test.go b/bp2build/java_library_host_conversion_test.go
index 73abdd2ea..83cc5519a 100644
--- a/bp2build/java_library_host_conversion_test.go
+++ b/bp2build/java_library_host_conversion_test.go
@@ -43,6 +43,7 @@ java_library_host {
     name: "java-lib-host-2",
     srcs: ["c.java"],
     bazel_module: { bp2build_available: true },
+    java_version: "9",
 }`,
 		expectedBazelTargets: []string{
 			makeBazelTarget("java_library", "java-lib-host-1", attrNameToString{
@@ -54,7 +55,8 @@ java_library_host {
     })`,
 			}),
 			makeBazelTarget("java_library", "java-lib-host-2", attrNameToString{
-				"srcs": `["c.java"]`,
+				"javacopts": `["-source 1.9 -target 1.9"]`,
+				"srcs":      `["c.java"]`,
 				"target_compatible_with": `select({
         "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
         "//conditions:default": [],
diff --git a/bp2build/java_plugin_conversion_test.go b/bp2build/java_plugin_conversion_test.go
index c2a2182bd..dc763e763 100644
--- a/bp2build/java_plugin_conversion_test.go
+++ b/bp2build/java_plugin_conversion_test.go
@@ -39,6 +39,7 @@ func TestJavaPlugin(t *testing.T) {
     libs: ["java-lib-1"],
     static_libs: ["java-lib-2"],
     bazel_module: { bp2build_available: true },
+    java_version: "7",
 }
 
 java_library {
@@ -66,6 +67,7 @@ java_library {
         "a.java",
         "b.java",
     ]`,
+				"javacopts": `["-source 1.7 -target 1.7"]`,
 			}),
 		},
 	})
diff --git a/bp2build/java_proto_conversion_test.go b/bp2build/java_proto_conversion_test.go
index 67f80446e..c6feeb8dc 100644
--- a/bp2build/java_proto_conversion_test.go
+++ b/bp2build/java_proto_conversion_test.go
@@ -102,6 +102,7 @@ func TestJavaProtoDefault(t *testing.T) {
 		blueprint: `java_library_static {
     name: "java-protos",
     srcs: ["a.proto"],
+    java_version: "7",
 }
 `,
 		expectedBazelTargets: []string{
@@ -115,7 +116,8 @@ func TestJavaProtoDefault(t *testing.T) {
 					"deps": `[":java-protos_proto"]`,
 				}),
 			makeBazelTarget("java_library", "java-protos", attrNameToString{
-				"exports": `[":java-protos_java_proto_lite"]`,
+				"exports":   `[":java-protos_java_proto_lite"]`,
+				"javacopts": `["-source 1.7 -target 1.7"]`,
 			}),
 		},
 	})
diff --git a/java/java.go b/java/java.go
index b34d6de8a..4e7e14c07 100644
--- a/java/java.go
+++ b/java/java.go
@@ -2089,6 +2089,11 @@ func (m *Library) convertLibraryAttrsBp2Build(ctx android.TopDownMutatorContext)
 	if m.properties.Javacflags != nil {
 		javacopts = append(javacopts, m.properties.Javacflags...)
 	}
+	if m.properties.Java_version != nil {
+		javaVersion := normalizeJavaVersion(ctx, *m.properties.Java_version).String()
+		javacopts = append(javacopts, fmt.Sprintf("-source %s -target %s", javaVersion, javaVersion))
+	}
+
 	epEnabled := m.properties.Errorprone.Enabled
 	//TODO(b/227504307) add configuration that depends on RUN_ERROR_PRONE environment variable
 	if Bool(epEnabled) {