[jira] [Created] (SCXML-248) Java 7 support for commons-scxml2

["Yuriy Flyud (JIRA)" <ji...@apache.org>]

Yuriy Flyud created SCXML-248:
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             Summary: Java 7 support for commons-scxml2
                 Key: SCXML-248
                 URL: https://issues.apache.org/jira/browse/SCXML-248
             Project: Commons SCXML
          Issue Type: Wish
    Affects Versions: 2.0
            Reporter: Yuriy Flyud


commons-scxml2 project is compiled with Java 8. Attempts to compile sources with Java 7 fail because of usage of lambda expressions, etc. The problem number two is usage of JDK 8+ Nashorn Script Engine in JSEvaluator that is not available in JDK 7 (the one with Rhino). Tests for JSEvaluator fail on Java 7.
The good news is that all the Java 8 specific features are used only in the env.groovy package, and Script Engine Replacement issue affects only env.javascript package. All the core functionality can work, and actually works, with Java 7.
I propose to extract the core functionlaity from the commons-scxml2 to something like commons-scxml2-core, and make it Java 7 compatible.
There are currently no any known stable SCXML Engine implementations that support latest SCXML specification, so disabling the Java 7 compliance forbids many developers like me to use it in their products.
>From my side I can propose creating a fork on Git repository for Java 7 compatible commons-scxml2 project in case you decide to leave everything as it is.



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