https://bugs.documentfoundation.org/show_bug.cgi?id=99638
Bug ID: 99638
Summary: Attaching listeners makes LibreOffice freeze
Product: LibreOffice
Version: 5.1.2.2 release
Hardware: x86 (IA32)
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: sdk
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: lucas.cu...@softexpert.com
I'm using Java UNO API to open documents via LibreOffice. The problem is that
when I try to attach a listener to XTopWindow for example, LibreOffice hangs
forever and I have to kill soffice via task manager. Looks like that when I had
my jar in ${JAVA_INSTALL_PATH}/jre/lib/ext, it worked. As soon as I deleted the
jar and modified my code to add LibreOffice install path to class path at
runtime, it stopped working. I'm using juh-3.2.1.jar, jurt-3.2.1.jar,
ridl-3-2-1.jar and unoil-3.2.1.jar from maven repository. Here is my code:
-------------------------
Main.java
package com.office.test;
import java.io.File;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Properties;
public class Main {
public static void main(String[] args) {
Main m = new Main();
try {
m.start();
} catch (Exception e) {
e.printStackTrace();
}
}
public void start() throws Exception {
String officePath = "C:\\Program Files (x86)\\LibreOffice 5\\program";
String filePath = "file:///C:\\Docs\\test.doc";
URLClassLoader loader = new URLClassLoader(new URL[] { new
File(officePath).toURI().toURL() });
try {
addToClassPath(officePath);
} catch (Exception e) {
e.printStackTrace();
}
Launcher launcher = new Launcher(loader, filePath);
launcher.start();
}
public static void addToClassPath(String s) throws Exception {
File f = new File(s);
URL u = f.toURL();
URLClassLoader urlClassLoader = (URLClassLoader)
ClassLoader.getSystemClassLoader();
Class urlClass = URLClassLoader.class;
Method method = urlClass.getDeclaredMethod("addURL", new
Class[]{URL.class});
method.setAccessible(true);
method.invoke(urlClassLoader, new Object[]{u});
}
}
------------
Launcher.java
package com.office.test;
import java.net.URLClassLoader;
import com.sun.star.awt.XTopWindow;
import com.sun.star.awt.XTopWindowListener;
import com.sun.star.beans.PropertyValue;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.frame.XDesktop;
import com.sun.star.lang.EventObject;
import com.sun.star.lang.XComponent;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
public class Launcher {
private URLClassLoader loader;
private String filePath;
private XComponentContext xContext;
private XMultiComponentFactory xMCF;
private XMultiServiceFactory xConfigProvider;
private XComponent xComponent;
private XDesktop xDesktop;
public Launcher(URLClassLoader loader, String filePath) {
this.loader = loader;
this.filePath = filePath;
}
public void launch() {
boolean readOnly = false;
PropertyValue[] props = this.getProperties(readOnly);
try {
Bootstrap bootstrap = new Bootstrap();
this.xContext = bootstrap.bootstrap(loader);
this.xMCF = this.xContext.getServiceManager();
final Object configProvider =
this.xMCF.createInstanceWithContext("com.sun.star.configuration.ConfigurationProvider",
this.xContext);
this.xConfigProvider = (XMultiServiceFactory)
UnoRuntime.queryInterface(XMultiServiceFactory.class, configProvider);
final Object desktop =
this.xMCF.createInstanceWithContext("com.sun.star.frame.Desktop",
this.xContext);
this.xDesktop = (XDesktop)
UnoRuntime.queryInterface(XDesktop.class, desktop);
final XComponentLoader xComponentLoader = (XComponentLoader)
UnoRuntime.queryInterface(XComponentLoader.class, desktop);
this.xComponent = xComponentLoader.loadComponentFromURL(filePath,
"_default", 0, props);
XTopWindow topWindow = (XTopWindow)
UnoRuntime.queryInterface(XTopWindow.class,
this.xDesktop.getCurrentFrame().getContainerWindow());
topWindow.addTopWindowListener(new XTopWindowListener() {
@Override
public void disposing(EventObject arg0) {
}
@Override
public void windowOpened(EventObject arg0) {
}
@Override
public void windowNormalized(EventObject arg0) {
}
@Override
public void windowMinimized(EventObject arg0) {
}
@Override
public void windowDeactivated(EventObject arg0) {
System.out.println("deac");
}
@Override
public void windowClosing(EventObject arg0) {
}
@Override
public void windowClosed(EventObject arg0) {
}
@Override
public void windowActivated(EventObject arg0) {
System.out.println("act");
}
});
} catch (final Exception e) {
e.printStackTrace();
}
}
private PropertyValue[] getProperties(boolean readOnly) {
PropertyValue[] props = new PropertyValue[1];
props[0] = new PropertyValue();
props[0].Name = "ReadOnly";
props[0].Value = new Boolean(readOnly);
return props;
}
}
------------
Bootstrap.java
package com.office.test;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Random;
import com.sun.star.bridge.UnoUrlResolver;
import com.sun.star.bridge.XUnoUrlResolver;
import com.sun.star.comp.helper.BootstrapException;
import com.sun.star.comp.helper.ComponentContext;
import com.sun.star.comp.helper.ComponentContextEntry;
import com.sun.star.comp.loader.JavaLoader;
import com.sun.star.comp.servicemanager.ServiceManager;
import com.sun.star.container.XSet;
import com.sun.star.lang.XInitialization;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.lib.util.NativeLibraryLoader;
import com.sun.star.loader.XImplementationLoader;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
public class Bootstrap {
@SuppressWarnings({"unchecked", "rawtypes"})
public XComponentContext createInitialComponentContext(Hashtable hashtable)
throws Exception {
ServiceManager xServiceManager = new ServiceManager();
XImplementationLoader xImpLoader = (XImplementationLoader)
UnoRuntime.queryInterface(XImplementationLoader.class, new JavaLoader());
XInitialization xInit = (XInitialization)
UnoRuntime.queryInterface(XInitialization.class, xImpLoader);
Object[] args = new Object [] { xServiceManager };
xInit.initialize( args );
if (hashtable == null) {
hashtable = new Hashtable<String,Object>(1);
}
hashtable.put("/singletons/com.sun.star.lang.theServiceManager", new
ComponentContextEntry( null, xServiceManager ));
XComponentContext xContext = new ComponentContext(hashtable, null);
XSet xSet = (XSet) UnoRuntime.queryInterface( XSet.class,
xServiceManager );
insertBasicFactories( xSet, xImpLoader );
return xContext;
}
private void insertBasicFactories(final XSet xset, final
XImplementationLoader ximplementationloader) throws Exception {
xset.insert(ximplementationloader.activate("com.sun.star.comp.loader.JavaLoader",
null, null, null));
xset.insert(ximplementationloader.activate("com.sun.star.comp.urlresolver.UrlResolver",
null, null, null));
xset.insert(ximplementationloader.activate("com.sun.star.comp.bridgefactory.BridgeFactory",
null, null, null));
xset.insert(ximplementationloader.activate("com.sun.star.comp.connections.Connector",
null, null, null));
xset.insert(ximplementationloader.activate("com.sun.star.comp.connections.Acceptor",
null, null, null));
}
public final XComponentContext bootstrap(URLClassLoader loader) throws
Exception {
XComponentContext xcomponentcontext = null;
try {
final XComponentContext xcomponentcontext1 =
this.createInitialComponentContext(null);
if (xcomponentcontext1 == null) {
throw new BootstrapException("no local component context!");
}
final String s =
System.getProperty("os.name").startsWith("Windows") ? "soffice.exe" :
"soffice";
final File officeExecutable =
NativeLibraryLoader.getResource(Bootstrap.class.getClassLoader(), s);
if (officeExecutable == null) {
throw new BootstrapException("no office executable found!");
}
final String unoName = this.getUnoName();
List<String> officeArguments =
this.getOfficeArguments(officeExecutable, loader, unoName);
Runtime.getRuntime().exec(officeArguments.toArray(new
String[officeArguments.size()]));
final XMultiComponentFactory xmulticomponentfactory =
xcomponentcontext1.getServiceManager();
if (xmulticomponentfactory == null) {
throw new BootstrapException("no initial service manager!");
}
final XUnoUrlResolver xunourlresolver =
UnoUrlResolver.create(xcomponentcontext1);
final String unoConnection = this.getUnoConnectionUrl(unoName);
do {
try {
Object obj = xunourlresolver.resolve(unoConnection);
xcomponentcontext = (XComponentContext)
UnoRuntime.queryInterface(com.sun.star.uno.XComponentContext.class, obj);
break;
} catch (final Exception noconnectexception) {
Thread.currentThread();
Thread.sleep(1000L);
}
} while (true);
} catch (Exception e) {
throw e;
}
return xcomponentcontext;
}
private List<String> getOfficeArguments(File officeExecutable,
URLClassLoader loader, String unoName) {
List<String> arguments = new ArrayList<String>();
arguments.add(officeExecutable.getPath());
arguments.add("-nologo");
arguments.add("-nodefault");
arguments.add("-norestore");
arguments.add("-nocrashreport");
arguments.add("-nolockcheck");
arguments.add("-nofirststartwizard");
arguments.add("-accept=pipe,name=" + unoName + ";urp;");
arguments.add("--nologo");
arguments.add("--nodefault");
arguments.add("--norestore");
arguments.add("--nocrashreport");
arguments.add("--nolockcheck");
arguments.add("--nofirststartwizard");
arguments.add("--accept=pipe,name=" + unoName + ";urp;");
return arguments;
}
private String getUnoName() {
return "uno" + Long.toString(new Random().nextLong() &
0x7fffffffffffffffL);
}
private String getUnoConnectionUrl(String unoName) {
return "uno:pipe,name=" + unoName +
";urp;StarOffice.ComponentContext";
}
}
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