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I am attempting to subscribe to a GCP topic and I have an environment limitation of using Java 1.7 (we can't update to 1.8 for various reasons just yet).

Here are the relevant versions that I am using: Spring Boot Version: 1.5.9.RELEASE Spring Cloud Version: Dalston.SR5 spring-cloud-gcp-starter-pubsub: 1.0.0.RELEASE spring-cloud-gcp-pubsub-stream-binder: 1.0.0.RELEASE spring-cloud-stream: 1.0.0.RELEASE

I am getting a Unsupported major.minor version 52.0 error when I attempt to start the spring container. What is the correct version of spring-cloud-gcp-autoconfigure (and other spring components) that I should be using to work with Java 1.7. Any help is appreciated. , Thanks

Caused by: java.lang.UnsupportedClassVersionError: org/springframework/cloud/gcp/autoconfigure/core/cloudfoundry/GcpCloudFoundryEnvironmentPostProcessor : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at org.springframework.util.ClassUtils.forName(ClassUtils.java:250)
    at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:132)
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