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spring-integration/.travis.yml
Artem Bilan 4e157725b9 INT-4448, INT-4449: Fix Gateway for no-arg method (#2420)
* INT-4448, INT-4449: Fix Gateway for no-arg method

JIRA: https://jira.spring.io/browse/INT-4448
JIRA: https://jira.spring.io/browse/INT-4449

When we are not interested in the `payload` to send, we use a gateway
method without any args, but in this case for send operation (or
send-and-receive) we should specify a default `payloadExpression`

The `MessagingGatewayRegistrar` fails with `NPE` if we don't have a
any global headers and have `defaultPayloadExpression`

Also in this case the `GatewayProxyFactoryBean` fails to send
and fallbacks to receive with the meaning "no args, not payloadExpression"

* Fix `MessagingGatewayRegistrar` to check `hasDefaultHeaders` before
processing them
* Fix `GatewayProxyFactoryBean` to consult `this.globalMethodMetadata`
if there is no `payloadExpression` for the method specific metadata

**Cherry-pick to 5.0.x and 4.3.x**

* Remove `oracle-java8-installer` since it looks like the resource
is not available anymore:

```
Location: http://download.oracle.com/otn-pub/java/jdk/8u161-b12/2f38c3b165be4555a1fa6e98c45e0808/jdk-8u161-linux-x64.tar.gz?AuthParam=1523990114_ee8c82cbe67bc87d192cb79d3b902d2f [following]
--2018-04-17 18:33:14--  http://download.oracle.com/otn-pub/java/jdk/8u161-b12/2f38c3b165be4555a1fa6e98c45e0808/jdk-8u161-linux-x64.tar.gz?AuthParam=1523990114_ee8c82cbe67bc87d192cb79d3b902d2f
Connecting to download.oracle.com (download.oracle.com)|23.53.120.105|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-04-17 18:35:15 ERROR 404: Not Found.
```
2018-04-18 13:48:44 -04:00

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YAML

language: java
jdk: oraclejdk8
sudo: false
services:
- mongodb
- rabbitmq
- redis-server
addons:
apt:
sources:
- mongodb-3.0-precise
packages:
- mongodb-org-server
before_cache:
- rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
cache:
directories:
- $HOME/.gradle/caches/
- $HOME/.gradle/wrapper/
install: true
env:
- TERM=dumb SI_FATAL_WHEN_NO_BEANFACTORY=true NO_REFERENCE_TASK=true
script:
- ./gradlew check --refresh-dependencies --no-daemon