/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution 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.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.jogamp.common.jvm;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URISyntaxException;
import java.net.URL;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import com.jogamp.common.net.Uri;
import com.jogamp.common.os.NativeLibrary;
import com.jogamp.common.util.JarUtil;
import com.jogamp.common.util.PropertyAccess;
import com.jogamp.common.util.SecurityUtil;
import com.jogamp.common.util.cache.TempJarCache;
import jogamp.common.Debug;
import jogamp.common.os.PlatformPropsImpl;
public class JNILibLoaderBase {
public static final boolean DEBUG;
protected static final boolean PERF;
static {
Debug.initSingleton();
DEBUG = Debug.debug("JNILibLoader");
PERF = DEBUG || PropertyAccess.isPropertyDefined("jogamp.debug.JNILibLoader.Perf", true);
}
private static final Object perfSync = new Object();
private static long perfTotal = 0;
private static long perfCount = 0;
public interface LoaderAction {
/**
* Loads the library specified by libname.<br>
* The implementation should ignore, if the library has been loaded already.<br>
* @param libname the library to load
* @param ignoreError if true, errors during loading the library should be ignored
* @param cl optional ClassLoader, used to locate the library
* @return true if library loaded successful
*/
boolean loadLibrary(String libname, boolean ignoreError, ClassLoader cl);
/**
* Loads the library specified by libname.<br>
* Optionally preloads the libraries specified by preload.<br>
* The implementation should ignore, if any library has been loaded already.<br>
* @param libname the library to load
* @param preload the libraries to load before loading the main library if not null
* @param preloadIgnoreError if true, errors during loading the preload-libraries should be ignored
* @param cl optional ClassLoader, used to locate the library
*/
void loadLibrary(String libname, String[] preload, boolean preloadIgnoreError, ClassLoader cl);
}
private static class DefaultAction implements LoaderAction {
@Override
public boolean loadLibrary(final String libname, final boolean ignoreError, final ClassLoader cl) {
boolean res = true;
if(!isLoaded(libname)) {
try {
loadLibraryInternal(libname, cl);
addLoaded(libname);
if(DEBUG) {
System.err.println("JNILibLoaderBase: loaded "+libname);
}
} catch (final UnsatisfiedLinkError e) {
res = false;
if(DEBUG) {
e.printStackTrace();
}
if (!ignoreError && e.getMessage().indexOf("already loaded") < 0) {
throw e;
}
}
}
return res;
}
@Override
public void loadLibrary(final String libname, final String[] preload, final boolean preloadIgnoreError, final ClassLoader cl) {
if(!isLoaded(libname)) {
if (null!=preload) {
for (int i=0; i<preload.length; i++) {
loadLibrary(preload[i], preloadIgnoreError, cl);
}
}
loadLibrary(libname, false, cl);
}
}
}
private static final HashSet<String> loaded = new HashSet<String>();
private static LoaderAction loaderAction = new DefaultAction();
public static boolean isLoaded(final String libName) {
return loaded.contains(libName);
}
public static void addLoaded(final String libName) {
loaded.add(libName);
if(DEBUG) {
System.err.println("JNILibLoaderBase: Loaded Native Library: "+libName);
}
}
public static void disableLoading() {
setLoadingAction(null);
}
public static void enableLoading() {
setLoadingAction(new DefaultAction());
}
public static synchronized void setLoadingAction(final LoaderAction action) {
loaderAction = action;
}
private static final String nativeJarTagPackage = "jogamp.nativetag"; // TODO: sync with gluegen-cpptasks-base.xml
/**
*
* @param classFromJavaJar
* @param classJarUri
* @param jarBasename jar basename w/ suffix
* @param nativeJarBasename native jar basename w/ suffix
* @return
* @throws IOException
* @throws SecurityException
* @throws URISyntaxException
*/
private static final boolean addNativeJarLibsImpl(final Class<?> classFromJavaJar, final Uri classJarUri,
final Uri.Encoded jarBasename, final Uri.Encoded nativeJarBasename)
throws IOException, SecurityException, URISyntaxException
{
if (DEBUG) {
final StringBuilder msg = new StringBuilder();
msg.append("JNILibLoaderBase: addNativeJarLibsImpl(").append(PlatformPropsImpl.NEWLINE);
msg.append(" classFromJavaJar = ").append(classFromJavaJar).append(PlatformPropsImpl.NEWLINE);
msg.append(" classJarURI = ").append(classJarUri).append(PlatformPropsImpl.NEWLINE);
msg.append(" jarBasename = ").append(jarBasename).append(PlatformPropsImpl.NEWLINE);
msg.append(" os.and.arch = ").append(PlatformPropsImpl.os_and_arch).append(PlatformPropsImpl.NEWLINE);
msg.append(" nativeJarBasename = ").append(nativeJarBasename).append(PlatformPropsImpl.NEWLINE);
msg.append(")");
System.err.println(msg.toString());
}
final long t0 = PERF ? System.currentTimeMillis() : 0; // 'Platform.currentTimeMillis()' not yet available!
boolean ok = false;
final Uri jarSubURI = classJarUri.getContainedUri();
if (null == jarSubURI) {
throw new IllegalArgumentException("JarSubURI is null of: "+classJarUri);
}
final Uri jarSubUriRoot = jarSubURI.getDirectory();
if (DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: initial: %s -> %s%n", jarSubURI, jarSubUriRoot);
}
final String nativeLibraryPath = String.format((Locale)null, "natives/%s/", PlatformPropsImpl.os_and_arch);
if (DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: nativeLibraryPath: %s%n", nativeLibraryPath);
}
{
// Attempt-1 a 'one slim native jar file' per 'os.and.arch' layout
// with native platform libraries under 'natives/os.and.arch'!
final Uri nativeJarURI = JarUtil.getJarFileUri( jarSubUriRoot.getEncoded().concat(nativeJarBasename) );
if (DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: module: %s -> %s%n", nativeJarBasename, nativeJarURI);
}
try {
ok = TempJarCache.addNativeLibs(classFromJavaJar, nativeJarURI, nativeLibraryPath);
} catch(final Exception e) {
if(DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: Caught %s%n", e.getMessage());
e.printStackTrace();
}
}
}
if (!ok) {
final ClassLoader cl = classFromJavaJar.getClassLoader();
{
// Attempt-2 a 'one big-fat jar file' layout, containing java classes
// and all native platform libraries under 'natives/os.and.arch' per platform!
final URL nativeLibraryURI = cl.getResource(nativeLibraryPath);
if (null != nativeLibraryURI) {
final Uri nativeJarURI = JarUtil.getJarFileUri( jarSubUriRoot.getEncoded().concat(jarBasename) );
try {
if( TempJarCache.addNativeLibs(classFromJavaJar, nativeJarURI, nativeLibraryPath) ) {
ok = true;
if (DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: fat: %s -> %s%n", jarBasename, nativeJarURI);
}
}
} catch(final Exception e) {
if(DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: Caught %s%n", e.getMessage());
e.printStackTrace();
}
}
}
}
if (!ok) {
// Attempt-3 to find via ClassLoader and Native-Jar-Tag,
// assuming one slim native jar file per 'os.and.arch'
// and native platform libraries under 'natives/os.and.arch'!
final String moduleName;
{
final String packageName = classFromJavaJar.getPackage().getName();
final int idx = packageName.lastIndexOf('.');
if( 0 <= idx ) {
moduleName = packageName.substring(idx+1);
} else {
moduleName = packageName;
}
}
final String os_and_arch_dot = PlatformPropsImpl.os_and_arch.replace('-', '.');
final String nativeJarTagClassName = nativeJarTagPackage + "." + moduleName + "." + os_and_arch_dot + ".TAG"; // TODO: sync with gluegen-cpptasks-base.xml
try {
if(DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: ClassLoader/TAG: Locating module %s, os.and.arch %s: %s%n",
moduleName, os_and_arch_dot, nativeJarTagClassName);
}
final Uri nativeJarTagClassJarURI = JarUtil.getJarUri(nativeJarTagClassName, cl);
if (DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: ClassLoader/TAG: %s -> %s%n", nativeJarTagClassName, nativeJarTagClassJarURI);
}
ok = TempJarCache.addNativeLibs(classFromJavaJar, nativeJarTagClassJarURI, nativeLibraryPath);
} catch (final Exception e ) {
if(DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl: Caught %s%n", e.getMessage());
e.printStackTrace();
}
}
}
}
if (DEBUG || PERF) {
final long tNow = System.currentTimeMillis() - t0;
final long tTotal, tCount;
synchronized(perfSync) {
tCount = perfCount+1;
tTotal = perfTotal + tNow;
perfTotal = tTotal;
perfCount = tCount;
}
final double tAvrg = tTotal / (double)tCount;
System.err.printf("JNILibLoaderBase: addNativeJarLibsImpl.X: %s / %s -> ok: %b; duration: now %d ms, total %d ms (count %d, avrg %.3f ms)%n",
jarBasename, nativeJarBasename, ok, tNow, tTotal, tCount, tAvrg);
}
return ok;
}
/**
* Loads and adds a JAR file's native library to the TempJarCache,
* calling {@link JNILibLoaderBase#addNativeJarLibs(Class[], String)}
* with default JOGL deployment configuration:
* <pre>
return JNILibLoaderBase.addNativeJarLibs(classesFromJavaJars, "-all");
* </pre>
* If <code>Class1.class</code> is contained in a JAR file which name includes <code>singleJarMarker</code> <i>-all</i>,
* implementation will attempt to resolve the native JAR file as follows:
* <ul>
* <li><i>ClassJar-all</i>.jar to <i>ClassJar-all</i>-natives-<i>os.and.arch</i>.jar</li>
* </ul>
* Otherwise the native JAR files will be resolved for each class's JAR file:
* <ul>
* <li><i>ClassJar1</i>.jar to <i>ClassJar1</i>-natives-<i>os.and.arch</i>.jar</li>
* <li><i>ClassJar2</i>.jar to <i>ClassJar2</i>-natives-<i>os.and.arch</i>.jar</li>
* <li>..</li>
* </ul>
*/
public static final boolean addNativeJarLibsJoglCfg(final Class<?>[] classesFromJavaJars) {
return addNativeJarLibs(classesFromJavaJars, "-all");
}
/**
* Loads and adds a JAR file's native library to the TempJarCache.<br>
* The native library JAR file's URI is derived as follows:
* <ul>
* <li> [1] <code>GLProfile.class</code> -> </li>
* <li> [2] <code>http://lala/gluegen-rt.jar</code> -> </li>
* <li> [3] <code>http://lala/gluegen-rt</code> -> </li>
* <li> [4] <code>http://lala/gluegen-rt-natives-'os.and.arch'.jar</code> </li>
* </ul>
* Where:
* <ul>
* <li> [1] is one of <code>classesFromJavaJars</code></li>
* <li> [2] is it's complete URI</li>
* <li> [3] is it's <i>base URI</i></li>
* <li> [4] is the derived native JAR filename</li>
* </ul>
* <p>
* Generic description:
* <pre>
final Class<?>[] classesFromJavaJars = new Class<?>[] { Class1.class, Class2.class };
JNILibLoaderBase.addNativeJarLibs(classesFromJavaJars, "-all");
* </pre>
* If <code>Class1.class</code> is contained in a JAR file which name includes <code>singleJarMarker</code>, here <i>-all</i>,
* implementation will attempt to resolve the native JAR file as follows:
* <ul>
* <li><i>ClassJar-all</i>.jar to <i>ClassJar-all</i>-natives-<i>os.and.arch</i>.jar</li>
* </ul>
* Otherwise the native JAR files will be resolved for each class's JAR file:
* <ul>
* <li><i>Class1Jar</i>.jar to <i>Class1Jar</i>-natives-<i>os.and.arch</i>.jar</li>
* <li><i>Class2Jar</i>.jar to <i>Class2Jar</i>-natives-<i>os.and.arch</i>.jar</li>
* </ul>
* </p>
* <p>
* Examples:
* </p>
* <p>
* JOCL:
* <pre>
// only: jocl.jar -> jocl-natives-<i>os.and.arch</i>.jar
addNativeJarLibs(new Class<?>[] { JOCLJNILibLoader.class }, null, null );
* </pre>
* </p>
* <p>
* JOGL:
* <pre>
final ClassLoader cl = GLProfile.class.getClassLoader();
// jogl-all.jar -> jogl-all-natives-<i>os.and.arch</i>.jar
// jogl-all-noawt.jar -> jogl-all-noawt-natives-<i>os.and.arch</i>.jar
// jogl-all-mobile.jar -> jogl-all-mobile-natives-<i>os.and.arch</i>.jar
// jogl-all-android.jar -> jogl-all-android-natives-<i>os.and.arch</i>.jar
// nativewindow.jar -> nativewindow-natives-<i>os.and.arch</i>.jar
// jogl.jar -> jogl-natives-<i>os.and.arch</i>.jar
// newt.jar -> newt-natives-<i>os.and.arch</i>.jar (if available)
final String newtFactoryClassName = "com.jogamp.newt.NewtFactory";
final Class<?>[] classesFromJavaJars = new Class<?>[] { NWJNILibLoader.class, GLProfile.class, null };
if( ReflectionUtil.isClassAvailable(newtFactoryClassName, cl) ) {
classesFromJavaJars[2] = ReflectionUtil.getClass(newtFactoryClassName, false, cl);
}
JNILibLoaderBase.addNativeJarLibs(classesFromJavaJars, "-all");
* </pre>
* </p>
*
* @param classesFromJavaJars For each given Class, load the native library JAR.
* @param singleJarMarker Optional string marker like "-all" to identify the single 'all-in-one' JAR file
* after which processing of the class array shall stop.
*
* @return true if either the 'all-in-one' native JAR or all native JARs loaded successful or were loaded already,
* false in case of an error
*/
public static boolean addNativeJarLibs(final Class<?>[] classesFromJavaJars, final String singleJarMarker) {
if(DEBUG) {
final StringBuilder msg = new StringBuilder();
msg.append("JNILibLoaderBase: addNativeJarLibs(").append(PlatformPropsImpl.NEWLINE);
msg.append(" classesFromJavaJars = ").append(Arrays.asList(classesFromJavaJars)).append(PlatformPropsImpl.NEWLINE);
msg.append(" singleJarMarker = ").append(singleJarMarker).append(PlatformPropsImpl.NEWLINE);
msg.append(")");
System.err.println(msg.toString());
}
boolean ok = false;
if ( TempJarCache.isInitialized(true) ) {
ok = addNativeJarLibsWithTempJarCache(classesFromJavaJars, singleJarMarker);
} else if(DEBUG) {
System.err.println("JNILibLoaderBase: addNativeJarLibs0: disabled due to uninitialized TempJarCache");
}
return ok;
}
private static boolean addNativeJarLibsWithTempJarCache(final Class<?>[] classesFromJavaJars, final String singleJarMarker) {
boolean ok;
int count = 0;
try {
boolean done = false;
ok = true;
for (int i = 0; i < classesFromJavaJars.length; ++i) {
final Class<?> c = classesFromJavaJars[i];
if (c == null) {
continue;
}
final ClassLoader cl = c.getClassLoader();
final Uri classJarURI = JarUtil.getJarUri(c.getName(), cl);
final Uri.Encoded jarName = JarUtil.getJarBasename(classJarURI);
if (jarName == null) {
continue;
}
final Uri.Encoded jarBasename = jarName.substring(0, jarName.indexOf(".jar"));
if(DEBUG) {
System.err.printf("JNILibLoaderBase: jarBasename: %s%n", jarBasename);
}
/**
* If a jar marker was specified, and the basename contains the
* marker, we're done.
*/
if (singleJarMarker != null) {
if (jarBasename.indexOf(singleJarMarker) >= 0) {
done = true;
}
}
final Uri.Encoded nativeJarBasename =
Uri.Encoded.cast( String.format((Locale)null, "%s-natives-%s.jar", jarBasename.get(), PlatformPropsImpl.os_and_arch) );
ok = JNILibLoaderBase.addNativeJarLibsImpl(c, classJarURI, jarName, nativeJarBasename);
if (ok) {
count++;
}
if (DEBUG && done) {
System.err.printf("JNILibLoaderBase: addNativeJarLibs0: done: %s%n", jarBasename);
}
}
} catch (final Exception x) {
System.err.printf("JNILibLoaderBase: Caught %s: %s%n", x.getClass().getSimpleName(), x.getMessage());
if(DEBUG) {
x.printStackTrace();
}
ok = false;
}
if(DEBUG) {
System.err.printf("JNILibLoaderBase: addNativeJarLibsWhenInitialized: count %d, ok %b%n", count, ok);
}
return ok;
}
/**
* Loads the library specified by libname, using the {@link LoaderAction} set by {@link #setLoadingAction(LoaderAction)}.<br>
* The implementation should ignore, if the library has been loaded already.<br>
* @param libname the library to load
* @param ignoreError if true, errors during loading the library should be ignored
* @param cl optional ClassLoader, used to locate the library
* @return true if library loaded successful
*/
protected static synchronized boolean loadLibrary(final String libname, final boolean ignoreError, final ClassLoader cl) {
if (loaderAction != null) {
return loaderAction.loadLibrary(libname, ignoreError, cl);
}
return false;
}
/**
* Loads the library specified by libname, using the {@link LoaderAction} set by {@link #setLoadingAction(LoaderAction)}.<br>
* Optionally preloads the libraries specified by preload.<br>
* The implementation should ignore, if any library has been loaded already.<br>
* @param libname the library to load
* @param preload the libraries to load before loading the main library if not null
* @param preloadIgnoreError if true, errors during loading the preload-libraries should be ignored
* @param cl optional ClassLoader, used to locate the library
*/
protected static synchronized void loadLibrary(final String libname, final String[] preload, final boolean preloadIgnoreError, final ClassLoader cl) {
if (loaderAction != null) {
loaderAction.loadLibrary(libname, preload, preloadIgnoreError, cl);
}
}
// private static final Class<?> customLauncherClass; // FIXME: remove
private static final Method customLoadLibraryMethod;
static {
final String sunAppletLauncherProperty = "sun.jnlp.applet.launcher";
final String sunAppletLauncherClassName = "org.jdesktop.applet.util.JNLPAppletLauncher";
final Method loadLibraryMethod = SecurityUtil.doPrivileged(new PrivilegedAction<Method>() {
@Override
public Method run() {
// FIXME: remove
final boolean usingJNLPAppletLauncher = PropertyAccess.getBooleanProperty(sunAppletLauncherProperty, true);
Class<?> launcherClass = null;
Method loadLibraryMethod = null;
if (usingJNLPAppletLauncher) {
try {
launcherClass = Class.forName(sunAppletLauncherClassName);
} catch (final ClassNotFoundException cnfe) {
// oops .. look like JNLPAppletLauncher doesn't exist, despite property
// this may happen if a previous applet was using JNLPAppletLauncher in the same JVM
System.err.println("JNILibLoaderBase: <"+sunAppletLauncherClassName+"> not found, despite enabled property <"+sunAppletLauncherProperty+">, JNLPAppletLauncher was probably used before");
System.setProperty(sunAppletLauncherProperty, Boolean.FALSE.toString());
} catch (final LinkageError le) {
throw le;
}
if(null != launcherClass) {
try {
loadLibraryMethod = launcherClass.getDeclaredMethod("loadLibrary", new Class[] { String.class });
} catch (final NoSuchMethodException ex) {
if(DEBUG) {
ex.printStackTrace();
}
launcherClass = null;
}
}
}
if(null==launcherClass) {
final String launcherClassName = PropertyAccess.getProperty("jnlp.launcher.class", false);
if(null!=launcherClassName) {
try {
launcherClass = Class.forName(launcherClassName);
loadLibraryMethod = launcherClass.getDeclaredMethod("loadLibrary", new Class[] { String.class });
} catch (final ClassNotFoundException ex) {
if(DEBUG) {
ex.printStackTrace();
}
} catch (final NoSuchMethodException ex) {
if(DEBUG) {
ex.printStackTrace();
}
launcherClass = null;
}
}
}
return loadLibraryMethod;
} } );
customLoadLibraryMethod = loadLibraryMethod;
}
private static void loadLibraryInternal(final String libraryName, final ClassLoader cl) {
// Note: special-casing JAWT which is built in to the JDK
int mode = 0; // 1 - custom, 2 - System.load( TempJarCache ), 3 - System.loadLibrary( name ), 4 - System.load( enumLibNames )
if (null!=customLoadLibraryMethod && !libraryName.equals("jawt")) {
// FIXME: remove
if(DEBUG) {
System.err.println("JNILibLoaderBase: customLoad("+libraryName+") - mode 1");
}
try {
customLoadLibraryMethod.invoke(null, new Object[] { libraryName });
mode = 1;
} catch (final Exception e) {
Throwable t = e;
if (t instanceof InvocationTargetException) {
t = ((InvocationTargetException) t).getTargetException();
}
if (t instanceof Error) {
throw (Error) t;
}
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
// Throw UnsatisfiedLinkError for best compatibility with System.loadLibrary()
throw (UnsatisfiedLinkError) new UnsatisfiedLinkError("can not load library "+libraryName).initCause(e);
}
} else {
// System.err.println("sun.boot.library.path=" + Debug.getProperty("sun.boot.library.path", false));
final String libraryPath = NativeLibrary.findLibrary(libraryName, cl); // implicit TempJarCache usage if used/initialized
if(DEBUG) {
System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+"), TempJarCache: "+libraryPath);
}
if(null != libraryPath) {
if(DEBUG) {
System.err.println("JNILibLoaderBase: System.load("+libraryPath+") - mode 2");
}
System.load(libraryPath);
mode = 2;
} else {
if(DEBUG) {
System.err.println("JNILibLoaderBase: System.loadLibrary("+libraryName+") - mode 3: SystemEnvLibraryPaths: "+NativeLibrary.getSystemEnvLibraryPaths());
}
try {
System.loadLibrary(libraryName);
mode = 3;
} catch (final UnsatisfiedLinkError ex1) {
if(DEBUG) {
System.err.println("ERROR mode 3 - "+ex1.getMessage());
}
final List<String> possiblePaths = NativeLibrary.enumerateLibraryPaths(libraryName, libraryName, libraryName, cl);
// Iterate down these and see which one if any we can actually find.
for (final Iterator<String> iter = possiblePaths.iterator(); 0 == mode && iter.hasNext(); ) {
final String path = iter.next();
if (DEBUG) {
System.err.println("JNILibLoaderBase: System.load("+path+") - mode 4");
}
try {
System.load(path);
mode = 4;
} catch (final UnsatisfiedLinkError ex2) {
if(DEBUG) {
System.err.println("n/a - "+ex2.getMessage());
}
if(!iter.hasNext()) {
// Avoid misleading final exception, use our own
throw new UnsatisfiedLinkError("Couldn't load library '"+libraryName+
"' generically including "+NativeLibrary.getSystemEnvLibraryPaths()+ // mode 3
", nor as "+possiblePaths); // mode 4
}
}
}
}
}
}
if(DEBUG) {
System.err.println("JNILibLoaderBase: loadLibraryInternal("+libraryName+"): OK - mode "+mode);
}
}
}