package net.sf.jabref;
import java.awt.Component;
import java.awt.Dimension;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.swing.BorderFactory;
import javax.swing.JEditorPane;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
/**
* This is a class compiled under Java 1.4.2 that will start the real JabRef and
* print some warnings if no Java 1.5 and higher and no JRE from Sun
* Microsystems is found.
*
* Caution: We cannot use any other class from JabRef here (for instance no
* calls to Globals.lang() are possible), since then it could not be run using
* Java 1.4.
*
* @author oezbek
*
*/
public class JabRefMain {
public static String exceptionToString(Throwable t){
StringWriter stackTraceWriter = new StringWriter();
t.printStackTrace(new PrintWriter(stackTraceWriter));
return stackTraceWriter.toString();
}
/**
* @param args
* We will pass these arguments to JabRef later.
*/
public static void main(String[] args) {
String javaVersion = System.getProperty("java.version", null);
if (javaVersion.compareTo("1.5") < 0) {
String javaVersionWarning = "\n" +
"WARNING: You are running Java version 1.4 or lower (" + javaVersion + " to be exact).\n" +
" JabRef needs at least a Java Runtime Environment 1.5 or higher.\n" +
" JabRef should not start properly and output an error message\n" +
" (probably java.lang.UnsupportedClassVersionError ... (Unsupported major.minor version 49.0)\n" +
" See http://jabref.sf.net/faq.php for more information.\n";
System.out.println(javaVersionWarning);
}
String javaVendor = System.getProperty("java.vendor", null);
if (javaVendor.indexOf("Sun Microsystems") == -1) {
System.out.println("\n" +
"WARNING: You are not running a Java version from Sun Microsystems.\n" +
" Your java vendor is: " + javaVendor + "\n" +
" If JabRef crashes please consider switching to a Sun Java Runtime.\n" +
" See http://jabref.sf.net/faq.php for more information.\n");
}
try {
// We need to load this class dynamically, or otherwise the Java
// runtime would crash while loading JabRefMain itself.
Method method = Class.forName("net.sf.jabref.JabRef").getMethod(
"main", new Class[] { args.getClass() });
method.invoke(null, new Object[] { args });
} catch (InvocationTargetException e) {
String errorMessage =
"\nERROR while starting or running JabRef:\n\n" +
exceptionToString(e.getCause()) + "\n" +
"Please first check if this problem and a solution is already known. Find our...\n" +
" * ...FAQ at http://jabref.sf.net/faq.php and our...\n" +
" * ...user mailing-list at http://sf.net/mailarchive/forum.php?forum_name=jabref-users\n\n" +
"If you do not find a solution there, please let us know about the problem by writing a bug report.\n" +
"You can find our bug tracker at http://sourceforge.net/tracker/?atid=600306&group_id=92314\n\n" +
" * If the bug has already been reported there, please add your comments to the existing bug.\n" +
" * If the bug has not been reported yet, then we need the complete error message given above\n" +
" and a description of what you did before the error occured.\n\n" +
"We also need the following information (you can copy and paste all this):\n" +
" * Java Version: " + javaVersion + "\n" +
" * Java Vendor: " + javaVendor + "\n" +
" * Operating System: " + System.getProperty("os.name") + " (" + System.getProperty("os.version") + ")\n" +
" * Hardware Architecture: " + System.getProperty("os.arch") + "\n\n" +
"We are sorry for the trouble and thanks for reporting problems with JabRef!\n";
System.out.println(errorMessage);
JEditorPane pane = new JEditorPane("text/html",
"<html>The following error occurred while running JabRef:<p><font color=\"red\">" +
exceptionToString(e.getCause()).replaceAll("\\n", "<br>") +
"</font></p>" +
"<p>Please first check if this problem and a solution is already known. Find our...</p>" +
"<ul><li>...FAQ at <b>http://jabref.sf.net/faq.php</b> and our..." +
"<li>...user mailing-list at <b>http://sf.net/mailarchive/forum.php?forum_name=jabref-users</b></ul>" +
"If you do not find a solution there, please let us know about the problem by writing a bug report.<br>" +
"You can find our bug tracker at <b>http://sourceforge.net/tracker/?atid=600306&group_id=92314</b>.<br>" +
"<ul><li>If the bug has already been reported there, please add your comments to the existing bug.<br>" +
"<li>If the bug has not been reported yet, then we need the complete error message given above<br>" +
"and a description of what you did before the error occured.</ul>" +
"We also need the following information (you can copy and paste all this):</p>" +
"<ul><li>Java Version: " + javaVersion +
"<li>Java Vendor: " + javaVendor +
"<li>Operating System: " + System.getProperty("os.name") + " (" + System.getProperty("os.version") + ")" +
"<li>Hardware Architecture: " + System.getProperty("os.arch") + "</ul>" +
"We are sorry for the trouble and thanks for reporting problems with JabRef!</html>");
pane.setEditable(false);
pane.setOpaque(false);
pane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
Component componentToDisplay;
if (pane.getPreferredSize().getHeight() > 700){
JScrollPane sPane = new JScrollPane(pane, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
sPane.setBorder(BorderFactory.createEmptyBorder());
sPane.setPreferredSize(new Dimension((int)pane.getPreferredSize().getWidth() + 30, 700));
componentToDisplay = sPane;
} else {
componentToDisplay = pane;
}
JOptionPane.showMessageDialog(null, componentToDisplay, "An error occurred while running JabRef", JOptionPane.ERROR_MESSAGE);
} catch (SecurityException e) {
System.out.println("ERROR: You are running JabRef in a sandboxed"
+ " environment that does not allow it to be started.");
e.printStackTrace();
} catch (NoSuchMethodException e) {
System.out
.println("This error should not happen."
+ " Write an email to the JabRef developers and tell them 'NoSuchMethodException in JabRefMain'");
} catch (ClassNotFoundException e) {
System.out
.println("This error should not happen."
+ " Write an email to the JabRef developers and tell them 'ClassNotFoundException in JabRefMain'");
} catch (IllegalArgumentException e) {
System.out
.println("This error should not happen."
+ " Write an email to the JabRef developers and tell them 'IllegalArgumentException in JabRefMain'");
} catch (IllegalAccessException e) {
System.out
.println("This error should not happen."
+ " Write an email to the JabRef developers and tell them 'IllegalAccessException in JabRefMain'");
} catch (UnsupportedClassVersionError e){
String errorMessage =
exceptionToString(e) + "\n" +
"This means that your Java version (" + javaVersion + ") is not high enough to run JabRef.\n" +
"Please update your Java Runtime Environment to a version 1.5 or higher.\n";
System.out.println(errorMessage);
JEditorPane pane = new JEditorPane("text/html",
"<html>You are using Java version " + javaVersion + ", but JabRef needs version 1.5 or higher." +
"<p>Please update your Java Runtime Environment.</p>" +
"<p>For more information visit <b>http://jabref.sf.net/faq.php</b>.</p></html>");
pane.setEditable(false);
pane.setOpaque(false);
pane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
JOptionPane.showMessageDialog(null, pane, "Insufficient Java Version Installed", JOptionPane.ERROR_MESSAGE);
}
}
}