Bug 1209574 - Generate constants for non-accessible static final fields; r=snorp

We try to generate a C++ constant for static final fields, but that
was failing for inaccessible fields. Now we set the field to be
accessible so that we do end up generating a C++ constant.

build/annotationProcessors/CodeGenerator.java

@@ -392,6 +392,7 @@ public class CodeGenerator {
         if (isStatic && isFinal && (type.isPrimitive() || type == String.class)) {
             Object val = null;
             try {
+                field.setAccessible(true);
                 val = field.get(null);
             } catch (final IllegalAccessException e) {
             }

widget/android/GeneratedJNIWrappers.cpp

@@ -1507,14 +1507,6 @@ auto SQLiteBridgeException::New(mozilla::jni::String::Param a0) -> SQLiteBridgeE
     return mozilla::jni::Constructor<New2_t>::Call(nullptr, nullptr, a0);
 }
 
-constexpr char SQLiteBridgeException::SerialVersionUID_t::name[];
-constexpr char SQLiteBridgeException::SerialVersionUID_t::signature[];
-
-auto SQLiteBridgeException::SerialVersionUID() -> int64_t
-{
-    return mozilla::jni::Field<SerialVersionUID_t>::Get(nullptr, nullptr);
-}
-
 constexpr char Clipboard::name[];
 
 constexpr char Clipboard::ClearText_t::name[];

widget/android/GeneratedJNIWrappers.h

@@ -3647,21 +3647,7 @@ public:
     static auto New(mozilla::jni::String::Param) -> SQLiteBridgeException::LocalRef;
 
 public:
-    struct SerialVersionUID_t {
+    static const int64_t SerialVersionUID = 1;
-        typedef SQLiteBridgeException Owner;
-        typedef int64_t ReturnType;
-        typedef int64_t SetterType;
-        typedef mozilla::jni::Args<> Args;
-        static constexpr char name[] = "serialVersionUID";
-        static constexpr char signature[] =
-                "J";
-        static const bool isStatic = true;
-        static const bool isMultithreaded = true;
-        static const mozilla::jni::ExceptionMode exceptionMode =
-                mozilla::jni::ExceptionMode::ABORT;
-    };
-
-    static auto SerialVersionUID() -> int64_t;
 
 };