jvm-jersey-env (#1677)

A new Jersey framework based JVM environment which is lightweight and simpler.

examples/jvm-jersey/java/specs/function-hello.yaml

@@ -0,0 +1,27 @@
+apiVersion: fission.io/v1
+kind: Function
+metadata:
+  creationTimestamp: null
+  name: hello
+  namespace: default
+spec:
+  InvokeStrategy:
+    ExecutionStrategy:
+      ExecutorType: poolmgr
+      MaxScale: 0
+      MinScale: 0
+      SpecializationTimeout: 120
+      TargetCPUPercent: 0
+    StrategyType: execution
+  configmaps: null
+  environment:
+    name: java-jersey
+    namespace: default
+  functionTimeout: 60
+  package:
+    functionName: io.fission.HelloWorld
+    packageref:
+      name: hellojava
+      namespace: default
+  resources: {}
+  secrets: null