4 files changed, 10 insertions, 12 deletions
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
index ba647093eb..418d35d720 100644
--- a/fpdfsdk/src/fpdfview.cpp
+++ b/fpdfsdk/src/fpdfview.cpp
@@ -241,7 +241,10 @@ DLLEXPORT void STDCALL FPDF_InitLibraryWithConfig(
   pModuleMgr->InitPageModule();
   pModuleMgr->InitRenderModule();
 #ifdef PDF_ENABLE_XFA
-  CPDFXFA_App::GetInstance()->Initialize();
+  CPDFXFA_App::GetInstance()->Initialize(
+      (cfg && cfg->version >= 2)
+          ? reinterpret_cast<FXJSE_HRUNTIME>(cfg->m_pIsolate)
+          : nullptr);
 #else   // PDF_ENABLE_XFA
   pModuleMgr->LoadEmbeddedGB1CMaps();
   pModuleMgr->LoadEmbeddedJapan1CMaps();
diff --git a/fpdfsdk/src/fpdfxfa/fpdfxfa_app.cpp b/fpdfsdk/src/fpdfxfa/fpdfxfa_app.cpp
index 44e9c72ddc..1006bf9c44 100644
--- a/fpdfsdk/src/fpdfxfa/fpdfxfa_app.cpp
+++ b/fpdfsdk/src/fpdfxfa/fpdfxfa_app.cpp
@@ -31,7 +31,8 @@ CPDFXFA_App::CPDFXFA_App()
       m_pXFAApp(NULL),
       m_pFontMgr(NULL),
       m_hJSERuntime(NULL),
-      m_csAppType(JS_STR_VIEWERTYPE_STANDARD) {
+      m_csAppType(JS_STR_VIEWERTYPE_STANDARD),
+      m_bOwnedRuntime(false) {
   m_pEnvList.RemoveAll();
 }
 
@@ -43,7 +44,7 @@ CPDFXFA_App::~CPDFXFA_App() {
   m_pXFAApp = NULL;
 
 #ifdef PDF_ENABLE_XFA
-  FXJSE_Runtime_Release(m_hJSERuntime);
+  FXJSE_Runtime_Release(m_hJSERuntime, m_bOwnedRuntime);
   m_hJSERuntime = NULL;
 
   FXJSE_Finalize();
@@ -51,12 +52,13 @@ CPDFXFA_App::~CPDFXFA_App() {
 #endif
 }
 
-FX_BOOL CPDFXFA_App::Initialize() {
+FX_BOOL CPDFXFA_App::Initialize(FXJSE_HRUNTIME hRuntime) {
 #ifdef PDF_ENABLE_XFA
   BC_Library_Init();
   FXJSE_Initialize();
 
-  m_hJSERuntime = FXJSE_Runtime_Create();
+  m_bOwnedRuntime = !hRuntime;
+  m_hJSERuntime = hRuntime ? hRuntime : FXJSE_Runtime_Create();
   if (!m_hJSERuntime)
     return FALSE;
 
diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index ba6d748ade..95f392487a 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -121,9 +121,7 @@ CJS_Runtime::~CJS_Runtime() {
     delete m_ContextArray.GetAt(i);
 
   m_ContextArray.RemoveAll();
-#ifndef PDF_ENABLE_XFA
   FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects);
-#endif
 
   m_pApp = NULL;
   m_pDocument = NULL;
diff --git a/fpdfsdk/src/jsapi/fxjs_v8.cpp b/fpdfsdk/src/jsapi/fxjs_v8.cpp
index 9b6b5fa445..f015f87136 100644
--- a/fpdfsdk/src/jsapi/fxjs_v8.cpp
+++ b/fpdfsdk/src/jsapi/fxjs_v8.cpp
@@ -370,11 +370,6 @@ void FXJS_ReleaseRuntime(v8::Isolate* pIsolate,
     return;
   pData->ReleaseDynamicObjsMap();
 
-#ifdef PDF_ENABLE_XFA
-  // XFA, if present, should have already cleaned itself up.
-  FXSYS_assert(!pData->m_pFXJSERuntimeData);
-#endif  // PDF_ENABLE_XFA
-
   int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
   for (int i = 0; i < maxID; ++i) {
     CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);