! fix codecov.sh

scripts/codecov.sh

@@ -2,9 +2,10 @@
 set -eEuo pipefail
 cd "$(dirname "$(readlink -f "$0")")"
 
+source ./prepare-jdk.sh
 source ./common_build.sh
 
-export JAVA_HOME="$JDK8_HOME"
+switch_to_jdk 8
 runCmd ./mvnw clean -V
 runCmd ./mvnw cobertura:cobertura
 runCmd codecov

scripts/prepare-jdk.sh

@@ -66,6 +66,8 @@ exportJdkVarAndInstall
 
 
 switch_to_jdk() {
+    [ $# == 1 ] || die "switch_to_jdk need 1 argument! But provided: $*"
+
     local javaHomeVarName="JDK${1}_HOME"
     export JAVA_HOME="${!javaHomeVarName}"