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

4 files changed, 25 insertions, 6 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:
diff --git a/src/java/com/jogamp/common/util/VersionUtil.java b/src/java/com/jogamp/common/util/VersionUtil.java
index b9e8568..1e09034 100644
--- a/src/java/com/jogamp/common/util/VersionUtil.java
+++ b/src/java/com/jogamp/common/util/VersionUtil.java
@@ -74,6 +74,7 @@ public class VersionUtil {
         sb.append(", Runtime: ").append(Platform.getJavaRuntimeName()).append(Platform.getNewline());
         sb.append("Platform: Java Vendor: ").append(Platform.getJavaVendor()).append(", ").append(Platform.getJavaVendorURL());
         sb.append(", JavaSE: ").append(PlatformPropsImpl.JAVA_SE);
+        sb.append(", Java9: ").append(PlatformPropsImpl.JAVA_9);
         sb.append(", Java6: ").append(PlatformPropsImpl.JAVA_6);
         sb.append(", dynamicLib: ").append(PlatformPropsImpl.useDynamicLibraries);
         sb.append(", AWT enabled: ").append(Platform.AWT_AVAILABLE);
diff --git a/src/java/jogamp/common/os/PlatformPropsImpl.java b/src/java/jogamp/common/os/PlatformPropsImpl.java
index f929ab7..2900c99 100644
--- a/src/java/jogamp/common/os/PlatformPropsImpl.java
+++ b/src/java/jogamp/common/os/PlatformPropsImpl.java
@@ -65,8 +65,8 @@ public abstract class PlatformPropsImpl {
     public static final VersionNumber Version17;
     /** Version 1.8. As a JVM version, it enables certain JVM 1.8 features. */
     public static final VersionNumber Version18;
-    /** Version 1.9. As a JVM version, it enables certain JVM 1.9 features. */
-    public static final VersionNumber Version19;
+    /** Version 1.9. As a JVM version, it enables certain JVM 1.9 features. Note the skipped first version number due to JEP 223. */
+    public static final VersionNumber Version9;
 
     public static final String OS;
     public static final String OS_lower;
@@ -93,6 +93,17 @@ public abstract class PlatformPropsImpl {
      * </p>
      */
     public static final boolean JAVA_6;
+    /**
+     * True only if being compatible w/ language level 9, e.g. JRE 9.
+     * <p>
+     * Implies {@link #isJavaSE()} and {@link #JAVA_6}.
+     * </p>
+     * <p>
+     * Since JRE 9, the version string has dropped the major release number,
+     * see JEP 223: http://openjdk.java.net/jeps/223
+     * </p>
+     */
+    public static final boolean JAVA_9;
 
     public static final String NEWLINE;
     public static final boolean LITTLE_ENDIAN;
@@ -114,7 +125,7 @@ public abstract class PlatformPropsImpl {
         Version16 = new VersionNumber(1, 6, 0);
         Version17 = new VersionNumber(1, 7, 0);
         Version18 = new VersionNumber(1, 8, 0);
-        Version19 = new VersionNumber(1, 9, 0);
+        Version9 = new VersionNumber(9, 0, 0);
 
         // We don't seem to need an AccessController.doPrivileged() block
         // here as these system properties are visible even to unsigned Applets.
@@ -143,7 +154,8 @@ public abstract class PlatformPropsImpl {
         JAVA_VM_NAME = System.getProperty("java.vm.name");
         JAVA_RUNTIME_NAME = getJavaRuntimeNameImpl();
         JAVA_SE = initIsJavaSE();
-        JAVA_6 = JAVA_SE && ( isAndroid || JAVA_VERSION_NUMBER.compareTo(Version16) >= 0 ) ;
+        JAVA_9 = JAVA_SE && JAVA_VERSION_NUMBER.compareTo(Version9) >= 0;
+        JAVA_6 = JAVA_SE && ( isAndroid || JAVA_9 || JAVA_VERSION_NUMBER.compareTo(Version16) >= 0 ) ;
 
         NEWLINE = System.getProperty("line.separator");