using openJDK-7 on Ubuntu 16.04

What is the output of:

dpkg -l | grep java

Thanks

$ sudo dpkg -l | grep java
ii ca-certificates-java 20160321 all Common CA certificates (JKS keystore)
ii gir1.2-javascriptcoregtk-4.0:amd64 2.10.9-1ubuntu1 amd64 JavaScript engine library from WebKitGTK+ - GObject introspection data
ii java-common 0.56ubuntu2 all Base package for Java runtimes
ii libaopalliance-java 20070526-5 all library for interoperability for Java AOP implementations
ii libapache-pom-java 10-2build1 all Maven metadata for all Apache Software projects
ii libasm4-java 5.0.4-1 all Java bytecode manipulation framework
ii libatinject-jsr330-api-java 1.0+ds1-2 all Java API for JSR-330 Dependency Injection
ii libbsh-java 2.0b4-17ubuntu1 all Java scripting environment (BeanShell) Version 2 (library)
ii libcdi-api-java 1.0-2 all Contexts and Dependency Injection for Java EE
ii libcglib3-java 3.1+dfsg-1 all code generation library for Java
ii libclassworlds-java 1.1-final-5 all framework for container developers requiring manipulation of ClassLoaders
ii libcommons-cli-java 1.3.1-3ubuntu1 all Command line arguments and options parsing library
ii libcommons-codec-java 1.10-1 all encoder and decoders such as Base64 and hexadecimal codec
ii libcommons-httpclient-java 3.1-12 all Commons HTTPClient - Java library for creating HTTP clients
ii libcommons-io-java 2.4-2 all Common useful IO related classes
ii libcommons-lang-java 2.6-6ubuntu2 all Commons Lang - an extension of the java.lang package
ii libcommons-lang3-java 3.4-1 all Extension of the java.lang package (for Java 5+)
ii libcommons-logging-java 1.2-1+build1 all common wrapper interface for several logging APIs
ii libcommons-net-java 3.4-2ubuntu2 all Apache Commons Net - Java client API for basic Internet protocols
ii libcommons-net2-java 2.2-2 all internet protocol suite Java library
ii libcommons-parent-java 39-3 all Maven metadata for Apache Commons project
ii libdom4j-java 1.6.1+dfsg.3-2ubuntu1 all flexible XML framework for Java
ii libdoxia-core-java 1.1.4-3ubuntu1 all Doxia content generation framework (core)
ii libeasymock-java 3.3.1+ds-3 all Java library to generate Mock Objects for given interfaces
ii libeclipse-aether-java 1.0.2-1 all Library to handle Java artifact repositories
ii libgeronimo-interceptor-3.0-spec-java 1.0.1-3fakesync1 all Geronimo API implementation of the Interceptor 3.0 spec
ii libguava-java 19.0-1 all Suite of Google common libraries for Java
ii libguice-java 4.0-2 all lightweight dependency injection framework for Java 5 and above
ii libhamcrest-java 1.3-5ubuntu1 all library of matchers for building test expressions
ii libhttpclient-java 4.5.1-1 all HTTP/1.1 compliant HTTP agent implementation
ii libhttpcore-java 4.4.4-1 all set of low level HTTP transport components for Java
ii libjavascriptcoregtk-4.0-18:amd64 2.10.9-1ubuntu1 amd64 JavaScript engine library from WebKitGTK+
ii libjaxen-java 1.1.6-1ubuntu1 all Java XPath engine
ii libjaxp1.3-java 1.3.05-2ubuntu3 all Java XML parser and transformer APIs (DOM, SAX, JAXP, TrAX)
ii libjdom1-java 1.1.3-1 all lightweight and fast library using XML
ii libjetty-java 6.1.26-5 all Java servlet engine and webserver -- core libraries
ii libjsch-java 0.1.53-1ubuntu1 all Java implementation of the SSH2 protocol
ii libjsoup-java 1.8.3-1 all Java HTML parser that makes sense of real-world HTML soup
ii libjsr305-java 0.1~+svn49-9 all Java library that provides annotations for software defect detection
ii liblog4j1.2-java 1.2.17-7ubuntu1 all Logging library for java
ii libmaven-parent-java 21-2 all Maven metadata for Apache Maven itself
ii libmaven2-core-java 2.2.1-24 all Core libraries for Maven2
ii libmaven3-core-java 3.3.9-3 all Core libraries for Maven 3
ii libobjenesis-java 2.2-1 all Java library to instantiate a new object of a particular class
ii libplexus-ant-factory-java 1.0~alpha2.1-3 all Plexus Ant Factory
ii libplexus-archiver-java 2.2-1 all Archiver plugin for the Plexus compiler system
ii libplexus-bsh-factory-java 1.0~alpha7-3.1 all Plexus Beanshell Factory
ii libplexus-cipher-java 1.7-1 all Plexus Cipher Component used by Maven
ii libplexus-classworlds-java 1.5.0-5 all Class loading utilities for the Plexus framework
ii libplexus-classworlds2-java 2.5.2-1 all Class loading utilities for the Plexus framework
ii libplexus-cli-java 1.2-5 all Easily create CLIs with Plexus components
ii libplexus-component-annotations-java 1.6-2 all Plexus Component Annotations
ii libplexus-component-metadata-java 1.6-2 all Component Metadata Maven plugin for Plexus
ii libplexus-container-default-java 1.0-alpha-9-stable-1-7 all utilities for the Plexus framework
ii libplexus-container-default1.5-java 1.6-2 all Plexus Inversion-of-control Container
ii libplexus-containers-java 1.0~beta3.0.7-8 all utilities for the Plexus framework
ii libplexus-containers1.5-java 1.6-2 all Plexus IoC Container core with companion tools
ii libplexus-interactivity-api-java 1.0-alpha-6-7 all interactivity API for the Plexus framework
ii libplexus-interpolation-java 1.21-1 all Plexus Interpolation API
ii libplexus-io-java 1.0~alpha5-2 all Plexus IO Components
ii libplexus-sec-dispatcher-java 1.3.1-6 all Plexus Security Dispatcher Component used by Maven
ii libplexus-utils-java 1:1.5.15-4 all utilities for the Plexus framework
ii libplexus-utils2-java 3.0.22-1 all utilities for the Plexus framework
ii libqdox2-java 2.0~M3-2 all quickly parses declarations and Javadoc from Java source
ii libservlet2.5-java 6.0.45+dfsg-1 all Servlet 2.5 and JSP 2.1 Java API classes
ii libservlet3.1-java 8.0.32-1ubuntu1 all Servlet 3.1, JSP 2.3, EL 3.0 and WebSocket 1.0 Java API classes
ii libsisu-inject-java 0.3.2-1 all Dependency Injection container for Java
ii libsisu-plexus-java 0.3.2-1 all Plexus adapter for the Sisu dependency injection container
ii libslf4j-java 1.7.14-3 all Simple Logging Facade for Java
ii libwagon-java 1.0.0-7 all tools to manage Maven artifacts and deployment
ii libwagon2-java 2.10-3 all resources' transport abstraction that is used in Maven
ii libxalan2-java 2.7.1-9 all XSL Transformations (XSLT) processor in Java
ii libxbean-java 4.5-1 all plugin based Java application server
ii libxerces2-java 2.11.0-7 all Validating XML parser for Java with DOM level 3 support
ii libxml-commons-external-java 1.4.01-2build1 all XML Commons external code - DOM, SAX, and JAXP, etc
ii libxml-commons-resolver1.1-java 1.2-7build1 all XML entity and URI resolver library
ii libxom-java 1.2.10-1 all New XML object model for Java
ii libxpp2-java 2.1.10-7build1 all XML pull parser library for java V2
ii libxpp3-java 1.1.4c-2build1 all XML pull parser library for java
$

see also Bug #1563986 and https://answers.launchpad.net/ubuntu/+question/291842
The openjdk-7 packages for wily should be installable on xenial without too much hassle.