Java 11 support

[RalphSteinhagen]

osgl-tool-1.20.0 does not seem to be supported by JDK11 (annotation/reflection issue).

Am getting e.g. the following warning and stack traces as part of the act framework's "Hello World" MVP Example which uses this framework:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.osgl.util.Unsafe (file:/home/rstein/.m2/repository/org/osgl/osgl-tool/1.20.0/osgl-tool-1.20.0.jar) to field java.lang.String.value
WARNING: Please consider reporting this to the maintainers of org.osgl.util.Unsafe
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

full stack trace

``` Exception in thread "main" java.lang.ExceptionInInitializerError at org.osgl.util.FastStr.toString(FastStr.java:584) at org.osgl.util.FastStr.toLowerCase(FastStr.java:1276) at org.osgl.util.FastStr.toLowerCase(FastStr.java:47) at org.osgl.util.StrBase.toLowerCase(StrBase.java:1551) at org.osgl.util.Keyword.init(Keyword.java:517) at org.osgl.util.Keyword.(Keyword.java:243) at org.osgl.util.Keyword.of(Keyword.java:450) at act.internal.util.AppNameInferer.classNameTokensReversed(AppNameInferer.java:84) at act.internal.util.AppNameInferer.tokenOf(AppNameInferer.java:68) at act.internal.util.AppNameInferer.from(AppNameInferer.java:43) at act.internal.util.AppDescriptor.ensureAppName(AppDescriptor.java:278) at act.internal.util.AppDescriptor.of(AppDescriptor.java:175) at act.internal.util.AppDescriptor.of(AppDescriptor.java:198) at act.internal.util.AppDescriptor.of(AppDescriptor.java:249) at act.Act.start(Act.java:676) at ch.steinhagen.act.HelloWorldApp.main(HelloWorldApp.java:17) Caused by: org.osgl.exception.UnexpectedException: java.lang.NoSuchMethodException: java.lang.String.([C, boolean) at org.osgl.util.E.unexpected(E.java:189) at org.osgl.util.Unsafe.(Unsafe.java:50) ... 16 more Caused by: java.lang.NoSuchMethodException: java.lang.String.([C, boolean) at java.base/java.lang.Class.getConstructor0(Class.java:3349) at java.base/java.lang.Class.getDeclaredConstructor(Class.java:2553) at org.osgl.util.Unsafe.(Unsafe.java:44) ... 16 more ```

Could this be added as a feature for the next version? Thanks in advance.

[greenlaw110]

There is a plan for the next generation of osgl-tool, while we have just started:

https://github.com/osglworks/java-core