Bug 1363: Java 11: Recognize Java9+ ..; Support JEP 178 static linkage libgluegen-rt[.so] -> libgluegen_rt[.so|.a]

Recognize Java9+ ..

- Recognize new Java9+ version string as of JEP 223

- Avoid Classpath's private findLibrary call

+++

Support JEP 178 static linkage (OpenJDK 1.8)

- Need to change native library basename: libgluegen-rt[.so] -> libgluegen_rt[.so|.a]
  since the dash '-' is not supported in a ANSI-c function name.

- Added 'JNI_OnLoad_gluegen_rt' to recognize statical linked JNI code

- Added JNI_VERSION_1_8 to jni/jni.h

2 files changed, 8 insertions, 2 deletions

diff --git a/src/java/com/jogamp/common/os/NativeLibrary.java b/src/java/com/jogamp/common/os/NativeLibrary.java
index 6daceae..39d1475 100644
--- a/src/java/com/jogamp/common/os/NativeLibrary.java
+++ b/src/java/com/jogamp/common/os/NativeLibrary.java
@@ -604,6 +604,9 @@ public final class NativeLibrary implements DynamicLookupHelper {
   private static boolean initializedFindLibraryMethod = false;
   private static Method  findLibraryMethod = null;
   private static final String findLibraryImpl(final String libName, final ClassLoader loader) {
+    if( PlatformPropsImpl.JAVA_9 ) {
+        return null;
+    }
     if (loader == null) {
         return null;
     }
diff --git a/src/java/com/jogamp/common/os/Platform.java b/src/java/com/jogamp/common/os/Platform.java
index f995af3..1bd3b9d 100644
--- a/src/java/com/jogamp/common/os/Platform.java
+++ b/src/java/com/jogamp/common/os/Platform.java
@@ -255,8 +255,11 @@ public class Platform extends PlatformPropsImpl {
 
     private static final String useTempJarCachePropName = "jogamp.gluegen.UseTempJarCache";
 
-    /** fixed basename of JAR file and native library */
-    private static final String libBaseName = "gluegen-rt";
+    /**
+     * Fixed basename of JAR file and native library.
+     * Dash replaced by underscore to allow static linkage via JEP 178.
+     */
+    private static final String libBaseName = "gluegen_rt";
 
     //
     // static initialization order: