keycloak-aplcache

diff --git a/misc/scripts/check-java-version.sh b/misc/scripts/check-java-version.sh
new file mode 100755
index 0000000..76bd638
--- /dev/null
+++ b/misc/scripts/check-java-version.sh
@@ -0,0 +1,55 @@
+#!/bin/bash -e
+
+ZIP=$1
+JAVAV=$2
+
+if [ "$ZIP" == "" ]; then
+	echo "check-java-version.sh <adapter zip> <java version>"
+	exit 1
+fi
+
+if [ "$JAVAV" == "" ]; then
+	echo "check-java-version.sh <adapter zip> <java version>"
+	exit 1
+fi
+
+ZIP=`readlink -f $ZIP`
+
+TMP=`mktemp -d`
+
+cd $TMP
+
+unzip -q $ZIP
+
+INVALID_ZIP=0
+
+for i in `find -name '*.jar'`; do
+	mkdir t
+	unzip -q $i -d t
+	
+	INVALID=0
+	
+	for j in `find t/ -name '*.class'`; do
+		V=`file "$j" | sed 's/.*version //' | sed 's/.0 (.*//'`
+		if [ "$V" -gt $JAVAV ]; then
+			INVALID=1
+			INVALID_ZIP=1
+			INVALID_VERSION=$V
+		fi
+	done	
+
+	if [ "$INVALID" == "1" ]; then
+		echo "[ERROR] $i ($INVALID_VERSION)"
+	fi
+
+	rm -rf t
+done
+
+if [ "$INVALID_ZIP" == "1" ]; then
+	echo ""
+	echo "ZIP contains invalid JARs"
+	exit 1
+fi
+
+cd /tmp
+rm -rf $TMP