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

5 files changed, 67 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");
 
diff --git a/src/native/common/JVM_JNI8.c b/src/native/common/JVM_JNI8.c
new file mode 100644
index 0000000..8b9848c
--- /dev/null
+++ b/src/native/common/JVM_JNI8.c
@@ -0,0 +1,42 @@
+/**
+ * Copyright 2019 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+#include <stdio.h> //required by android to identify NULL
+#include <jni.h>
+
+#if defined (JNI_VERSION_1_8)
+
+JNIEXPORT jint JNICALL JNI_OnLoad_gluegen_rt(JavaVM *vm, void *reserved) {
+    return JNI_VERSION_1_8;
+}
+
+JNIEXPORT void JNICALL JNI_OnUnload_gluegen_rt(JavaVM *vm, void *reserved) {
+}
+
+#endif /* defined (JNI_VERSION_1_8) */
+