Replace "" (empty string) default values of multiple options with "null".
This is preparation for turning on parsing of default values for multiple (allowMultiple = true) options.
This change is NOOP (enforced by OptionDefaultValueConversionTest#shouldConvertDefaultValue()) because for now default value of a multiple option does not matter and is always converted to an empty list. But it will matter a bit later: "null" - special value resolving to the same empty list, anything else - parsed by the converter.
RELNOTES: None.
PiperOrigin-RevId: 303345588
diff --git a/src/main/java/com/google/devtools/build/lib/runtime/HostJvmStartupOptions.java b/src/main/java/com/google/devtools/build/lib/runtime/HostJvmStartupOptions.java
index 3677c7c..7a3ae9e 100644
--- a/src/main/java/com/google/devtools/build/lib/runtime/HostJvmStartupOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/runtime/HostJvmStartupOptions.java
@@ -39,14 +39,13 @@
public String serverJavabase;
@Option(
- name = "host_jvm_args",
- defaultValue = "", // NOTE: purely decorative! See BlazeServerStartupOptions.
- allowMultiple = true,
- valueHelp = "<jvm_arg>",
- documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
- effectTags = {OptionEffectTag.UNKNOWN},
- help = "Flags to pass to the JVM executing Blaze."
- )
+ name = "host_jvm_args",
+ defaultValue = "null", // NOTE: purely decorative! See BlazeServerStartupOptions.
+ allowMultiple = true,
+ valueHelp = "<jvm_arg>",
+ documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
+ effectTags = {OptionEffectTag.UNKNOWN},
+ help = "Flags to pass to the JVM executing Blaze.")
public List<String> hostJvmArgs;
@Option(
