Package: libjfreechart-java Version: 1.0.9-1 Severity: serious Hello,
Unfortunately, unlike what is said in the changelog,
libjfreechart-java does not work with free JVM available. As I proof,
I joined a test case, TestJFreeChart.java. I compiled it with gcj:
/usr/lib/jvm/java-gcj/bin/javac -classpath
/usr/share/java/jfreechart.jar:/usr/share/java/jcommon.jar TestJFreeChart.java
I run it with different runtimes using commands in the spirit of:
/usr/lib/jvm/java-1.5.0-sun/bin/java -classpath
/usr/share/java/jcommon.jar:/usr/share/java/jfreechart.jar:. TestJFreeChart
The runtimes never complain about anything going
wrong. Unfortunately, when I look at the test.png files produced with
free runtimes (cacao, gcj-compat, kaffe), the PNG files are empty,
while they do display nice charts for the two runs with sun's jre.
It seems libjfreechart-java will probably have to go back to
contrib, as this bug is rather serious - if not grave (it simply
cannot run properly in main).
Sorry to bring bad news...
Vincent
PS: I unfortunately don't have a single idea about what is causing
this problem.
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.22-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1) (ignored: LC_ALL set to
en_GB)
Shell: /bin/sh linked to /bin/dash
Versions of packages libjfreechart-java depends on:
ii gij-4.2 [java2-runtime] 4.2.2-3 The GNU Java bytecode interpreter
ii java-gcj-compat 1.0.77-2 Java runtime environment using GIJ
ii libjcommon-java 1.0.10.dfsg-1 General Purpose library for Java
ii sun-java5-jre [java2-runti 1.5.0-13-1 Sun Java(TM) Runtime Environment (
ii sun-java6-jre [java2-runti 6-03-2 Sun Java(TM) Runtime Environment (
libjfreechart-java recommends no packages.
-- no debconf information
// JFreeChart classes:
import org.jfree.data.xy.DefaultXYDataset;
import org.jfree.data.xy.XYDataset;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.renderer.xy.XYAreaRenderer;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartUtilities;
import java.io.File;
import java.io.IOException;
public class TestJFreeChart {
static XYDataset prepareSet() {
// First, make a 2D datatset:
DefaultXYDataset set = new DefaultXYDataset();
int size = 30;
double[] x = new double[size];
double[] y = new double[size];
for(int i = 0; i < size; i++) {
x[i] = i;
y[i] = i*i;
}
double[][] data = new double[2][];
data[0] = x;
data[1] = y;
java.lang.Integer j = new java.lang.Integer(0);
set.addSeries(j, data);
return set;
}
public static void main(String[] args) {
XYDataset set = prepareSet();
XYPlot plot = new XYPlot(set, new NumberAxis("X values"),
new NumberAxis("Y values"),
new XYAreaRenderer());
JFreeChart chart = new JFreeChart("Nice plot", plot);
try {
ChartUtilities.saveChartAsPNG(new File("test.png"),
chart, 400,400);
} catch (IOException e) {
}
}
}
test-charts.tar.gz
Description: GNU Zip compressed data
