While using + is convenient, it prevents builds from being
deterministic which makes it hard/impossible to reproduce a historic
build or execution results.
Turns out the ManagedChannelBuilder was misbehaving because the
devserver launcher ignores the app's jdk7 configuration and uses
whatever jdk is in JAVA_HOME. This is the reason
GrpcUtil.IS_RESTRICTED_APPENGINE was wrong.
Changing JAVA_HOME to point to jdk7 reveals that devservers lack
conscrypt. Adding an explicit check to make sure the jdk7 test is not
running in a dev server.
Since the projects are placed in the root settings.gradle, they are subprojects
and don't need their own gradlew. In addition, the gradle version used here is
a different version than elsewhere, which is asking for confusion.
Eric Anderson
zpencer