diff --git a/ReactCommon/cxxreact/JSCExecutor.cpp b/ReactCommon/cxxreact/JSCExecutor.cpp
index 42967be0c..b2b50fdc6 100644
--- a/ReactCommon/cxxreact/JSCExecutor.cpp
+++ b/ReactCommon/cxxreact/JSCExecutor.cpp
@@ -340,42 +340,64 @@ void JSCExecutor::bindBridge() throw(JSException) {
   m_flushedQueueJS = batchedBridge.getProperty("flushedQueue").asObject();
 }
 
-void JSCExecutor::flush() throw(JSException) {
+void JSCExecutor::flush() {
   auto result = m_flushedQueueJS->callAsFunction({});
-  auto calls = Value(m_context, result).toJSONString();
-  m_delegate->callNativeModules(*this, std::move(calls), true);
+  try {
+    auto calls = Value(m_context, result).toJSONString();
+    m_delegate->callNativeModules(*this, std::move(calls), true);
+  } catch (...) {
+    std::string message = "Error in flush()";
+    try {
+      message += ":" + Value(m_context, result).toString().str();
+    } catch (...) {
+      // ignored
+    }
+    std::throw_with_nested(std::runtime_error(message));
+  }
 }
 
-void JSCExecutor::callFunction(const std::string& moduleId, const std::string& methodId, const folly::dynamic& arguments) throw(JSException) {
-  auto result = m_callFunctionReturnFlushedQueueJS->callAsFunction({
-    Value(m_context, String::createExpectingAscii(moduleId)),
-    Value(m_context, String::createExpectingAscii(methodId)),
-    Value::fromDynamic(m_context, std::move(arguments))
-  });
-  auto calls = Value(m_context, result).toJSONString();
-  m_delegate->callNativeModules(*this, std::move(calls), true);
+void JSCExecutor::callFunction(const std::string& moduleId, const std::string& methodId, const folly::dynamic& arguments) {
+  try {
+    auto result = m_callFunctionReturnFlushedQueueJS->callAsFunction({
+      Value(m_context, String::createExpectingAscii(moduleId)),
+      Value(m_context, String::createExpectingAscii(methodId)),
+      Value::fromDynamic(m_context, std::move(arguments))
+    });
+    auto calls = Value(m_context, result).toJSONString();
+    m_delegate->callNativeModules(*this, std::move(calls), true);
+  } catch (...) {
+    std::throw_with_nested(std::runtime_error("Error calling function: " + moduleId + ":" + methodId));
+  }
 }
 
-void JSCExecutor::invokeCallback(const double callbackId, const folly::dynamic& arguments) throw(JSException) {
-  auto result = m_invokeCallbackAndReturnFlushedQueueJS->callAsFunction({
-    JSValueMakeNumber(m_context, callbackId),
-    Value::fromDynamic(m_context, std::move(arguments))
-  });
-  auto calls = Value(m_context, result).toJSONString();
-  m_delegate->callNativeModules(*this, std::move(calls), true);
+void JSCExecutor::invokeCallback(const double callbackId, const folly::dynamic& arguments) {
+  try {
+    auto result = m_invokeCallbackAndReturnFlushedQueueJS->callAsFunction({
+      JSValueMakeNumber(m_context, callbackId),
+      Value::fromDynamic(m_context, std::move(arguments))
+    });
+    auto calls = Value(m_context, result).toJSONString();
+    m_delegate->callNativeModules(*this, std::move(calls), true);
+  } catch (...) {
+    std::throw_with_nested(std::runtime_error(folly::to<std::string>("Error invoking callback.", callbackId)));
+  }
 }
 
-void JSCExecutor::setGlobalVariable(std::string propName, std::unique_ptr<const JSBigString> jsonValue) throw(JSException) {
-  SystraceSection s("JSCExecutor.setGlobalVariable",
-                    "propName", propName);
+void JSCExecutor::setGlobalVariable(std::string propName, std::unique_ptr<const JSBigString> jsonValue) {
+  try {
+    SystraceSection s("JSCExecutor.setGlobalVariable",
+                      "propName", propName);
 
-  auto globalObject = JSContextGetGlobalObject(m_context);
-  String jsPropertyName(propName.c_str());
+    auto globalObject = JSContextGetGlobalObject(m_context);
+    String jsPropertyName(propName.c_str());
 
-  String jsValueJSON = jsStringFromBigString(*jsonValue);
-  auto valueToInject = JSValueMakeFromJSONString(m_context, jsValueJSON);
+    String jsValueJSON = jsStringFromBigString(*jsonValue);
+    auto valueToInject = JSValueMakeFromJSONString(m_context, jsValueJSON);
 
-  JSObjectSetProperty(m_context, globalObject, jsPropertyName, valueToInject, 0, NULL);
+    JSObjectSetProperty(m_context, globalObject, jsPropertyName, valueToInject, 0, NULL);
+  } catch (...) {
+    std::throw_with_nested(std::runtime_error("Error setting global variable: " + propName));
+  }
 }
 
 void* JSCExecutor::getJavaScriptContext() {
diff --git a/ReactCommon/cxxreact/JSCExecutor.h b/ReactCommon/cxxreact/JSCExecutor.h
index b02c7e5b6..455fa5b9d 100644
--- a/ReactCommon/cxxreact/JSCExecutor.h
+++ b/ReactCommon/cxxreact/JSCExecutor.h
@@ -70,13 +70,13 @@ public:
   virtual void callFunction(
     const std::string& moduleId,
     const std::string& methodId,
-    const folly::dynamic& arguments) throw(JSException) override;
+    const folly::dynamic& arguments) override;
   virtual void invokeCallback(
     const double callbackId,
-    const folly::dynamic& arguments) throw(JSException) override;
+    const folly::dynamic& arguments) override;
   virtual void setGlobalVariable(
     std::string propName,
-    std::unique_ptr<const JSBigString> jsonValue) throw(JSException) override;
+    std::unique_ptr<const JSBigString> jsonValue) override;
   virtual void* getJavaScriptContext() override;
   virtual bool supportsProfiling() override;
   virtual void startProfiler(const std::string &titleString) override;
@@ -117,7 +117,7 @@ private:
   void initOnJSVMThread() throw(JSException);
   void terminateOnJSVMThread();
   void bindBridge() throw(JSException);
-  void flush() throw(JSException);
+  void flush();
   void flushQueueImmediate(std::string queueJSON);
   void loadModule(uint32_t moduleId);
 
diff --git a/ReactCommon/cxxreact/Value.cpp b/ReactCommon/cxxreact/Value.cpp
index 7bc40b20f..43b6e4413 100644
--- a/ReactCommon/cxxreact/Value.cpp
+++ b/ReactCommon/cxxreact/Value.cpp
@@ -35,7 +35,7 @@ JSContextRef Value::context() const {
   return m_context;
 }
 
-std::string Value::toJSONString(unsigned indent) const throw(JSException) {
+std::string Value::toJSONString(unsigned indent) const {
   JSValueRef exn;
   auto stringToAdopt = JSValueCreateJSONString(m_context, m_value, indent, &exn);
   if (stringToAdopt == nullptr) {
@@ -46,7 +46,7 @@ std::string Value::toJSONString(unsigned indent) const throw(JSException) {
 }
 
 /* static */
-Value Value::fromJSON(JSContextRef ctx, const String& json) throw(JSException) {
+Value Value::fromJSON(JSContextRef ctx, const String& json) {
   auto result = JSValueMakeFromJSONString(ctx, json);
   if (!result) {
     throwJSExecutionException("Failed to create String from JSON");
diff --git a/ReactCommon/cxxreact/Value.h b/ReactCommon/cxxreact/Value.h
index 044f3a522..8d924df15 100644
--- a/ReactCommon/cxxreact/Value.h
+++ b/ReactCommon/cxxreact/Value.h
@@ -282,8 +282,8 @@ public:
     return String::adopt(JSValueToStringCopy(context(), m_value, nullptr));
   }
 
-  std::string toJSONString(unsigned indent = 0) const throw(JSException);
-  static Value fromJSON(JSContextRef ctx, const String& json) throw(JSException);
+  std::string toJSONString(unsigned indent = 0) const;
+  static Value fromJSON(JSContextRef ctx, const String& json);
   static JSValueRef fromDynamic(JSContextRef ctx, const folly::dynamic& value);
   JSContextRef context() const;
 protected: