[Build] Fix open OpenJDK 11 location

Author: mpkorstanje

.m2/travis-ci-toolchains.xml

@@ -1,4 +1,4 @@
-\<?xml version="1.0" encoding="UTF8"?>
+<?xml version="1.0" encoding="UTF8"?>
 <toolchains>
     <toolchain>
         <type>jdk</type>
@@ -7,7 +7,7 @@
             <vendor>openjdk</vendor>
         </provides>
         <configuration>
-            <jdkHome>/usr/local/lib/jvm/openjdk11</jdkHome>
+            <jdkHome>/usr/lib/jvm/java-11-openjdk-amd64</jdkHome>
         </configuration>
     </toolchain>
 </toolchains>