Simplify POM, add more precise JPA annotations.

Change-Id: I2ad299c90d578c2151b2f0b0394d50d3dab3d24f
diff --git a/src/main/resources/META-INF/beans.xml b/src/main/resources/META-INF/beans.xml
new file mode 100644
index 0000000..6bb944c
--- /dev/null
+++ b/src/main/resources/META-INF/beans.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="https://jakarta.ee/xml/ns/jakartaee"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/beans_4_0.xsd">
+</beans>
\ No newline at end of file