Fix an NPE in SimpleRequestProcessor when a client request has no invocations.
Issue 5793.
Patch by: bobv
Review by: rchandia
Found by: cory.prowse
Review at http://gwt-code-reviews.appspot.com/1242801
git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9479 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/src/com/google/gwt/requestfactory/server/SimpleRequestProcessor.java b/user/src/com/google/gwt/requestfactory/server/SimpleRequestProcessor.java
index 2fde11d..5eeb6b8 100644
--- a/user/src/com/google/gwt/requestfactory/server/SimpleRequestProcessor.java
+++ b/user/src/com/google/gwt/requestfactory/server/SimpleRequestProcessor.java
@@ -214,8 +214,7 @@
// Invoke methods
List<Splittable> invocationResults = new ArrayList<Splittable>();
List<Boolean> invocationSuccess = new ArrayList<Boolean>();
- List<InvocationMessage> invlist = req.getInvocations();
- processInvocationMessages(source, invlist, invocationResults,
+ processInvocationMessages(source, req, invocationResults,
invocationSuccess, returnState);
// Store return objects
@@ -225,8 +224,11 @@
toProcess.putAll(returnState.beans);
createReturnOperations(operations, returnState, toProcess);
- resp.setInvocationResults(invocationResults);
- resp.setStatusCodes(invocationSuccess);
+ assert invocationResults.size() == invocationSuccess.size();
+ if (!invocationResults.isEmpty()) {
+ resp.setInvocationResults(invocationResults);
+ resp.setStatusCodes(invocationSuccess);
+ }
if (!operations.isEmpty()) {
resp.setOperations(operations);
}
@@ -409,9 +411,14 @@
}
private void processInvocationMessages(RequestState state,
- List<InvocationMessage> invlist, List<Splittable> results,
- List<Boolean> success, RequestState returnState) {
- for (InvocationMessage invocation : invlist) {
+ RequestMessage req, List<Splittable> results, List<Boolean> success,
+ RequestState returnState) {
+ List<InvocationMessage> invocations = req.getInvocations();
+ if (invocations == null) {
+ // No method invocations which can happen via RequestContext.fire()
+ return;
+ }
+ for (InvocationMessage invocation : invocations) {
try {
// Find the Method
String[] operation = invocation.getOperation().split("::");
diff --git a/user/test/com/google/gwt/requestfactory/client/RequestFactoryTest.java b/user/test/com/google/gwt/requestfactory/client/RequestFactoryTest.java
index b116e1c..b7a0c09 100644
--- a/user/test/com/google/gwt/requestfactory/client/RequestFactoryTest.java
+++ b/user/test/com/google/gwt/requestfactory/client/RequestFactoryTest.java
@@ -886,6 +886,19 @@
}
/**
+ * Tests a no-op request.
+ */
+ public void testNoOpRequest() {
+ delayTestFinish(DELAY_TEST_FINISH);
+ simpleFooRequest().fire(new Receiver<Void>() {
+ @Override
+ public void onSuccess(Void response) {
+ finishTestAndReset();
+ }
+ });
+ }
+
+ /**
* Ensures that a service method can respond with a null value.
*/
public void testNullEntityProxyResult() {
@@ -1008,7 +1021,7 @@
*/
public void testNullValueInIntegerListRequest() {
delayTestFinish(DELAY_TEST_FINISH);
- List<Integer> list = Arrays.asList(new Integer[]{1, 2, null});
+ List<Integer> list = Arrays.asList(new Integer[] {1, 2, null});
final Request<Void> fooReq = req.simpleFooRequest().receiveNullValueInIntegerList(
list);
fooReq.fire(new Receiver<Void>() {
@@ -1024,7 +1037,7 @@
*/
public void testNullValueInStringListRequest() {
delayTestFinish(DELAY_TEST_FINISH);
- List<String> list = Arrays.asList(new String[]{"nonnull", "null", null});
+ List<String> list = Arrays.asList(new String[] {"nonnull", "null", null});
final Request<Void> fooReq = req.simpleFooRequest().receiveNullValueInStringList(
list);
fooReq.fire(new Receiver<Void>() {
@@ -1035,6 +1048,22 @@
});
}
+ /**
+ * Tests a message consisting only of operations, with no invocations.
+ */
+ public void testOperationOnlyMessage() {
+ delayTestFinish(DELAY_TEST_FINISH);
+ RequestContext ctx = simpleFooRequest();
+ SimpleFooProxy proxy = ctx.create(SimpleFooProxy.class);
+ proxy.setUserName("GWT");
+ ctx.fire(new Receiver<Void>() {
+ @Override
+ public void onSuccess(Void response) {
+ finishTestAndReset();
+ }
+ });
+ }
+
public void testPersistAllValueTypes() {
delayTestFinish(DELAY_TEST_FINISH);
