Added Interceptor Environment

Signed-off-by: thadumi <th.theodor.th@gmail.com>

spec/src/main/asciidoc/chapters/interceptor_programming_contract/interceptor_environment.adoc

@@ -0,0 +1,30 @@
+////
+*******************************************************************
+* Copyright (c) 2019 Eclipse Foundation
+*
+* This specification document is made available under the terms
+* of the Eclipse Foundation Specification License v1.0, which is
+* available at https://www.eclipse.org/legal/efsl.php.
+*******************************************************************
+////
+
+[[interceptor_environment]]
+== Interceptor Environment
+
+An interceptor class shares the enterprise
+naming context of its associated target class. Annotations and/or XML
+deployment descriptor elements for dependency injection or for direct
+JNDI lookup refer to this shared naming context.
+
+Around-invoke and around-timeout interceptor
+methods run in the same Java thread as the associated target method.
+Around-construct interceptor methods run in the same Java thread as the
+target constructor.
+
+It is possible to carry state across multiple
+interceptor method invocations for a single method invocation or
+lifecycle callback event in the context data of the _InvocationContext_
+object. The _InvocationContext_ object also provides information that
+enables interceptor methods to control the behavior of the interceptor
+invocation chain, including whether the next method in the chain is
+invoked and the values of its parameters and result.

spec/src/main/asciidoc/chapters/interceptor_programming_contract/interceptor_programming_contract.adoc

@@ -15,4 +15,6 @@ include::terminology.adoc[]
 
 include::definition_of_interceptor_classes_and_interceptor_methods.adoc[]
 
-include::interceptor_life_cycle.adoc
+include::interceptor_life_cycle.adoc[]
+
+include::interceptor_environment.adoc[]