Jimmy, Jing Lv wrote:
Martin Cordova wrote:
Is it OK to send this type of feedback to the list? please let me know
if not, and what subject conventions should I use (is there a link
about this?). I am not a Harmony developer, just a new user, I can
only provide feedback from my tests.
Welcome! I think everyone here is eager to see Harmony works with some
real projects well :)
----
I am running a small webapp, using Winstone servlet engine and IBM JDK
1.4.2 SP4 on WinXP SP2. Runs fine. I switched to Harmony JRE (aug-4),
and found these exceptions:
1.- I see this error while using servlet includes and also at the end
of some pages:
java.lang.ArrayIndexOutOfBoundsException: 0..0 at
org.apache.harmony.luni.platform.OSNetworkSystem.sendStreamImpl(OSNetworkSystem.java)
at
org.apache.harmony.luni.platform.OSNetworkSystem.sendStream(OSNetworkSystem.java:194)
at
org.apache.harmony.luni.net.PlainSocketImpl.write(PlainSocketImpl.java:647)
at
org.apache.harmony.luni.net.SocketOutputStream.write(SocketOutputStream.java:89)
at winstone.WinstoneOutputStream.commit(WinstoneOutputStream.java:152)
at winstone.WinstoneOutputStream.flush(WinstoneOutputStream.java:189)
at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:176) at
java.io.OutputStreamWriter.convert(OutputStreamWriter.java:240) at
java.io.OutputStreamWriter.write(OutputStreamWriter.java:228) at
java.io.PrintWriter.doWrite(PrintWriter.java:640) at
java.io.PrintWriter.write(PrintWriter.java:622) at
winstone.WinstoneResponseWriter.write(WinstoneResponseWriter.java:45)
at java.io.PrintWriter.write(PrintWriter.java:607) at
java.io.PrintWriter.write(PrintWriter.java:657) at
java.io.PrintWriter.print(PrintWriter.java:455) at
I've looked into this, I feel puzzled, the stack trace shows that:
org.apache.harmony.luni.net.SocketOutputStream.write(SocketOutputStream.java:89)
but there are checks for overflow:
if (0 <= offset && offset <= buffer.length && 0 <= count
&& count <= buffer.length - offset){
...
}
Oops, this is certainly wrong: "offset <= buffer.length","count <=
buffer.length - offset", the equal mark should be omitted.
I'll raise a JIRA for this.
I'm not sure if this is the cause of the problem. So would you please
try again if I correct it? :)
So can you give more information? e.g, what are PrintWriter try to write
that time? :)
2.- Trying to generate charts using JFreeCharts (server-side):
java.lang.NoClassDefFoundError: org/apache/harmony/awt/gl/ImageSurface
at
java.awt.image.BufferedImage.createImageSurface(BufferedImage.java:659)
at java.awt.image.BufferedImage.<init>(BufferedImage.java:352)
at
org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1211)
at
org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1193)
at
org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1178)...
The JDBC related code is running fine, performance also looks very good.
I will contact Winstone developer to see if he can help in some way to
identify the problem. He already helped me a few months ago to help
identify a bug in GNU Classpath server socket API.
Regards,
Martin
--
Best Regards!
Jimmy, Jing Lv
China Software Development Lab, IBM
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