Upgrade to jdk-10-ea+31 and allow failures on Travis CI

Author: sormuras

.travis.yml

@@ -17,6 +17,8 @@ matrix:
 # Java 10
     - env: JDK_RELEASE='JDK 10 Early-Access'
       install: . ./src/install/install-jdk-10.sh
+  allow_failures:
+    - env: JDK_RELEASE='JDK 10 Early-Access'
 
 script:
 # Display Gradle, Groovy, JVM and other versions

src/install/install-jdk-10.sh

@@ -2,7 +2,7 @@
 set -e
 
 JDK_FEATURE=10
-JDK_BUILD=30
+JDK_BUILD=31
 JDK_ARCHIVE=jdk-${JDK_FEATURE}-ea+${JDK_BUILD}_linux-x64_bin.tar.gz
 
 cd ~