diff --git a/java/manifest.mf b/java/manifest.mf
index 0cbf5d1fe2f7503a96d0cd3fde097f7455f9d7a3..d3217ada5b75bedc9bd56acc290b397ec6ba68b8 100644
--- a/java/manifest.mf
+++ b/java/manifest.mf
@@ -1,10 +1,10 @@
Manifest-Version: 1.0
-Main-Class:
+Main-Class: ipaaca.Info
-Name: hmi/bml/
+Name: ipaaca
Specification-Title: ipaaca
Specification-Version: 0.1
-Specification-Vendor:
+Specification-Vendor: ipaaca
Implementation-Title: ipaaca
Implementation-Version: November 23 2011 07:07 PM
-Implementation-Vendor:
+Implementation-Vendor: ipaaca
diff --git a/java/src/ipaaca/Info.java b/java/src/ipaaca/Info.java
new file mode 100644
index 0000000000000000000000000000000000000000..bf7091d779c92012509c383b9238b286b1df5d92
--- /dev/null
+++ b/java/src/ipaaca/Info.java
@@ -0,0 +1,177 @@
+/*******************************************************************************
+ * Copyright (C) 2009 Human Media Interaction, University of Twente, the Netherlands
+ *
+ * This file is part of the Elckerlyc BML realizer.
+ *
+ * Elckerlyc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Elckerlyc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Elckerlyc. If not, see http://www.gnu.org/licenses/.
+ ******************************************************************************/
+/**
+ * @(#) Info.java
+ * @version 1.0 3/09/2007
+ * @author Job Zwiers
+ */
+
+package ipaaca; // change this line for other packages
+
+import javax.swing.JOptionPane;
+
+/**
+ * The Info class is intended to be used as "Main class" when the package is
+ * jarred. Running java -jar <packageJarFile> will print some package
+ * information. Note that some of this information is only available from the
+ * Manifest.mf file, that is included in the jar file, and not when running
+ * directly from compiled classes.
+ */
+public final class Info
+{
+ private Info(){}
+
+ private static Package pack = new Info().getClass().getPackage();
+ public final static String packageName = pack.getName();
+
+ /**
+ * Yields a String containing manifest file info. When not running from a
+ * jar file, only the package name is included.
+ */
+ public static String manifestInfo()
+ {
+ StringBuilder buf = new StringBuilder();
+ buf.append("Package: ");
+ buf.append(packageName);
+ buf.append("\n");
+ if (pack.getSpecificationTitle() != null)
+ {
+ buf.append("Specification-Title: " + pack.getSpecificationTitle()
+ + "\n");
+ }
+ if (pack.getSpecificationVersion() != null)
+ {
+ buf.append("Specification-Version: "
+ + pack.getSpecificationVersion() + "\n");
+ }
+ if (pack.getSpecificationVendor() != null)
+ {
+ buf.append("Specification-Vendor: " + pack.getSpecificationVendor()
+ + "\n");
+ }
+ if (pack.getImplementationTitle() != null)
+ {
+ buf.append("Implementation-Title: " + pack.getImplementationTitle()
+ + "\n");
+ }
+ if (pack.getImplementationVersion() != null)
+ {
+ buf.append("Implementation-Version: "
+ + pack.getImplementationVersion() + "\n");
+ }
+ if (pack.getImplementationVendor() != null)
+ {
+ buf.append("Implementation-Vendor: "
+ + pack.getImplementationVendor() + "\n");
+ }
+ return buf.toString();
+ }
+
+ /**
+ * Checks whether the current specification version meets the specified
+ * required version; if not, a RuntimeException is thrown. No check is
+ * performed when manifest info is not available.
+ */
+ public static void requireVersion(String requiredVersion)
+ {
+ if (pack.getSpecificationVersion() == null)
+ return; // no check possible, so assume ok
+ if (pack.isCompatibleWith(requiredVersion))
+ return;
+ String msg = "Package " + packageName + " Version "
+ + pack.getSpecificationVersion()
+ + " does not meet the required version " + requiredVersion;
+ JOptionPane.showMessageDialog(null, msg, "Package Info",
+ JOptionPane.PLAIN_MESSAGE);
+ throw new RuntimeException(msg);
+ }
+
+ /**
+ * Returns the specification version from the Manifest.mf file, if
+ * available, or else an empty String.
+ */
+ public static String getVersion()
+ {
+ String result = pack.getSpecificationVersion();
+ return (result == null) ? "" : result;
+ }
+
+ /**
+ * checks whether the package specification version is compatible with a
+ * certain desired version. "isCompatibleWith(desiredversion)"
+ * return true iff the desiredVersion is smaller or equal than the package
+ * specification version, where "smaller than" is determined by the
+ * lexicographic order on major, minor, and micro version numbers. (Missing
+ * numbers are considered to be 0). For instance, when the package
+ * specification version would be 2.1, then some examples of compatible
+ * desired versions are: 1, 1.0, 1.6, 2.0.4, 2.1, 2.1.0, whereas desired
+ * versions like 2.2, 3.0, or 2.1.1 would not be compatible.
+ */
+ public static boolean isCompatibleWith(String desiredVersion)
+ {
+ String specificationVersion = pack.getSpecificationVersion();
+ if (specificationVersion == null)
+ return true; // no spec version available, so assume ok
+ String[] desiredNums = desiredVersion.split("[.]");
+ String[] specificationNums = specificationVersion.split("[.]");
+ int desired, specified;
+ try
+ {
+ for (int vn = 0; vn < desiredNums.length; vn++)
+ {
+ // System.out.println(" desired num " + vn + ": " +
+ // desiredNums[vn] + " specification num: " +
+ // specificationNums[vn]);
+ desired = Integer.valueOf(desiredNums[vn]);
+ if (vn < specificationNums.length)
+ {
+ specified = Integer.valueOf(specificationNums[vn]);
+ }
+ else
+ {
+ specified = 0;
+ }
+
+ if (desired < specified)
+ return true;
+ if (desired > specified)
+ return false;
+ }
+ return true;
+ }
+ catch (NumberFormatException e)
+ {
+ System.out
+ .println(packageName
+ + ".Info.isCompatibelWith method: illegal version numbers: "
+ + desiredVersion + " / " + specificationVersion);
+ return false;
+ }
+ }
+
+ /*
+ * Show some package information
+ */
+ public static void main(String[] arg)
+ {
+ JOptionPane.showMessageDialog(null, Info.manifestInfo(),
+ "Package Info", JOptionPane.PLAIN_MESSAGE);
+ }
+
+}