jdk1.4.2: plugin & javaws users feedback request
evan at eeaston.com
Sat Dec 20 11:31:11 PST 2003
On Monday 08 December 2003 14:32, Alexey Zelkin wrote:
> If you are using jdk1.4.2p5 and also use plugin and/or javaws, then
> I would ask you send me your feedbacks (positive and/or negative) about
> their correctnes and functionality. I am not using them heavily, so
> not able to test them a lot.
> Thank you in advance!
I just installed jdk 1.4.2p5 and tried to use javaws on 5.1-CURRENT. I
ran into two issues with javaws.
(1) when I run javaws nothing appears to happen. Top shows javawsbin
spinning it's wheels using ~40% CPU, but other than that there's no
outward symptoms it's doing anything useful. I tried setting env var
JAVAWS_TRACE_NATIVE=1 , but this did not cause javawsbin to show any
more info. I was able to get it to run with the following script:
java -cp $JAVAWS_HOME/javaws.jar:$JAVAWS_HOME/javaws-l10n.jar \
-Djnlpx.jvm=$JAVA_HOME/jre/bin/java -Djnlpx.home=$JAVAWS_HOME \
So it seems something's wrong in javawsbin. I don't know how to
provide more useful info to you on this. Give me a hint and I'll try.
(2) Using the above script, I'm able to run some java webstart apps.
However, because java -version reports '1.4.2-p5', Java Web Start
doesn't consider the JRE to be a 1.4.2 **FCS** version and will not
treat the current VM as valid if a java webstart app wants to run with
Java 1.4. Take a look at the jnlp spec.
. Look for the text following the syntax for the j2se version command
If a platform version is specified (i.e., no |href| attribute is
provided), Java Web Start will not consider an installed
non-FCS (i.e., milestone) JRE as a match. E.g., a request of
would not consider an installed 1.4.1-ea or 1.4.2-beta
JRE as a match for the request. Starting with 1.3.0, a JRE
from Sun Microsystems, Inc., is by convention a
non-FCS (milestone) JRE if there is a dash (|-|) in the version
So this version of the JDK is unusable for apps that require 1.4 or
higher (and possibly ones that require older versions of java too). I
tried overriding the version from my script above by adding the
following system property overrides, but no luck:
I haven't tried to rebuild the jdk to report a version of '1.4.2'
instead of '1.4.2-p5' but it seems that this needs to be done to make
javaws usable. Note that Sun uses a _XX suffix on their patch
releases. Perhaps the version reported should be changes to '1.4.2_p5'
or to be a little more consisted with Sun, '1.4.2_05'.
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