--- a/libinterp/octave-value/ov-java.h	Wed Aug 25 12:30:01 2021 -0700
+++ b/libinterp/octave-value/ov-java.h	Wed Aug 25 14:40:16 2021 -0700
@@ -48,17 +48,17 @@
   octave_java (const voidptr& obj, void *cls = nullptr);
 
   octave_java (const octave_java& jobj)
-    : octave_base_value (jobj), java_object (nullptr), java_class (nullptr)
+    : octave_base_value (jobj), m_java_object (nullptr), m_java_class (nullptr)
   {
-    init (jobj.java_object, jobj.java_class);
+    init (jobj.m_java_object, jobj.m_java_class);
   }
 
   ~octave_java (void) { release (); }
 
-  void * to_java (void) const { return java_object; }
-  void * to_class (void) const { return java_class; }
+  void * to_java (void) const { return m_java_object; }
+  void * to_class (void) const { return m_java_class; }
 
-  std::string java_class_name (void) const { return java_classname; }
+  std::string java_class_name (void) const { return m_java_classname; }
 
   octave_base_value * clone (void) const { return new octave_java (*this); }
   octave_base_value * empty_clone (void) const { return new octave_java (); }
@@ -172,17 +172,17 @@
 
 private:
 
-  void *java_object;
+  void *m_java_object;
 
-  void *java_class;
+  void *m_java_class;
 
-  std::string java_classname;
+  std::string m_java_classname;
 
 public:
 
   int type_id (void) const { return t_id; }
   std::string type_name (void) const { return t_name; }
-  std::string class_name (void) const { return java_classname; }
+  std::string class_name (void) const { return m_java_classname; }
 
   static int static_type_id (void) { return t_id; }
   static std::string static_type_name (void) { return t_name; }