diff --git a/prelude/java/java_library.bzl b/prelude/java/java_library.bzl
index 3af2e51edf5ee..520eabfc606da 100644
--- a/prelude/java/java_library.bzl
+++ b/prelude/java/java_library.bzl
@@ -33,7 +33,7 @@ load(
     "create_plugin_params",
 )
 load("@prelude//java/utils:java_more_utils.bzl", "get_path_separator_for_exec_os")
-load("@prelude//java/utils:java_utils.bzl", "build_bootclasspath", "declare_prefixed_name", "derive_javac", "get_abi_generation_mode", "get_class_to_source_map_info", "get_default_info", "get_java_version_attributes", "to_java_version")
+load("@prelude//java/utils:java_utils.bzl", "declare_prefixed_name", "derive_javac", "get_abi_generation_mode", "get_class_to_source_map_info", "get_default_info", "get_java_version_attributes", "to_java_version")
 load("@prelude//jvm:cd_jar_creator_util.bzl", "postprocess_jar")
 load("@prelude//jvm:nullsafe.bzl", "get_nullsafe_info")
 load("@prelude//linking:shared_libraries.bzl", "SharedLibraryInfo")
@@ -135,6 +135,16 @@ def _build_classpath(actions: AnalysisActions, deps: list[Dependency], additiona
 
     return None
 
+def _build_bootclasspath(bootclasspath_entries: list[Artifact], source_level: int, java_toolchain: JavaToolchainInfo) -> list[Artifact]:
+    bootclasspath_list = []
+    if source_level in [8]:
+        if bootclasspath_entries:
+            bootclasspath_list = bootclasspath_entries
+        elif source_level == 8:
+            expect(java_toolchain.bootclasspath_8, "Must specify bootclasspath for source level 8")
+            bootclasspath_list = java_toolchain.bootclasspath_8
+    return bootclasspath_list
+
 def _append_javac_params(
         ctx: AnalysisContext,
         actions_identifier: [str, None],
@@ -176,7 +186,7 @@ def _append_javac_params(
     javac_args.add("-target")
     javac_args.add(str(target_level))
 
-    bootclasspath_list = build_bootclasspath(bootclasspath_entries, source_level, java_toolchain)
+    bootclasspath_list = _build_bootclasspath(bootclasspath_entries, source_level, java_toolchain)
     if bootclasspath_list:
         cmd.add(_process_classpath(
             ctx.actions,
diff --git a/prelude/java/javacd_jar_creator.bzl b/prelude/java/javacd_jar_creator.bzl
index 6388b0eda9ceb..27676362d90ad 100644
--- a/prelude/java/javacd_jar_creator.bzl
+++ b/prelude/java/javacd_jar_creator.bzl
@@ -29,12 +29,12 @@ load(
     "@prelude//java/plugins:java_plugin.bzl",
     "PluginParams",  # @unused Used as a type
 )
-load("@prelude//java/utils:java_utils.bzl", "build_bootclasspath")
 load(
     "@prelude//jvm:cd_jar_creator_util.bzl",
     "BuildMode",
     "OutputPaths",
     "TargetType",
+    "add_java_7_8_bootclasspath",
     "base_qualified_name",
     "declare_prefixed_output",
     "define_output_paths",
@@ -82,7 +82,7 @@ def create_jar_artifact_javacd(
     actions = ctx.actions
     resources_map = get_resources_map(java_toolchain, label.package, resources, resources_root)
 
-    bootclasspath_entries = build_bootclasspath(bootclasspath_entries, source_level, java_toolchain)
+    bootclasspath_entries = add_java_7_8_bootclasspath(target_level, bootclasspath_entries, java_toolchain)
     abi_generation_mode = get_abi_generation_mode(abi_generation_mode, java_toolchain, srcs, annotation_processor_properties)
 
     should_create_class_abi = (
diff --git a/prelude/java/utils/java_utils.bzl b/prelude/java/utils/java_utils.bzl
index 5e420f74d7051..476b685b3a8f2 100644
--- a/prelude/java/utils/java_utils.bzl
+++ b/prelude/java/utils/java_utils.bzl
@@ -157,14 +157,3 @@ def get_classpath_subtarget(actions: AnalysisActions, packaging_info: JavaPackag
     proj = packaging_info.packaging_deps.project_as_args("full_jar_args")
     output = actions.write("classpath", proj)
     return {"classpath": [DefaultInfo(output, other_outputs = [proj])]}
-
-def build_bootclasspath(bootclasspath_entries: list[Artifact], source_level: int, java_toolchain: JavaToolchainInfo) -> list[Artifact]:
-    bootclasspath_list = []
-    if source_level in [7, 8]:
-        # bootclasspath_7 is deprecated.
-        if bootclasspath_entries:
-            bootclasspath_list = bootclasspath_entries
-        elif source_level == 8:
-            expect(java_toolchain.bootclasspath_8, "Must specify bootclasspath for source level 8")
-            bootclasspath_list = java_toolchain.bootclasspath_8
-    return bootclasspath_list
diff --git a/prelude/jvm/cd_jar_creator_util.bzl b/prelude/jvm/cd_jar_creator_util.bzl
index 5d41e3e0e395b..1e2107ff79fe7 100644
--- a/prelude/jvm/cd_jar_creator_util.bzl
+++ b/prelude/jvm/cd_jar_creator_util.bzl
@@ -22,6 +22,12 @@ load(
 load("@prelude//java/utils:java_utils.bzl", "declare_prefixed_name")
 load("@prelude//utils:expect.bzl", "expect")
 
+def add_java_7_8_bootclasspath(target_level: int, bootclasspath_entries: list[Artifact], java_toolchain: JavaToolchainInfo) -> list[Artifact]:
+    # bootclasspath_7 is deprecated.
+    if target_level == 8:
+        return bootclasspath_entries + java_toolchain.bootclasspath_8
+    return bootclasspath_entries
+
 def declare_prefixed_output(actions: AnalysisActions, prefix: [str, None], output: str, dir: bool = False) -> Artifact:
     return actions.declare_output(declare_prefixed_name(output, prefix), dir = dir)