7u9 jnlp very touchy with vm args

[Igor Nekrestyanov]

I think the reason of this behavior (with unsupported option) is that if 
you try to pass unsupported arg to java launcher then jvm will simply 
exit with error.
javaws or plugin spawns new JVM and it does not really know why that 
other process exits (or crash).

I totally agree it is not developer friendly though. Please file your 
suggestions/ideas as bugs/JIRA issues.
This is first step to make them fixed.

Your second problem sounds like some incompatibility between Apple 
helper tools and Oracle JRE.
Perhaps Scott or someone from install team can comment on this,

-igor

On 10/24/12 2:52 PM, Jeff Palmer wrote:
> I have isolated my problem,&  I think the reason might help explain some other messages on the other list.  I have reviewed the allowable vm args in JNLPs as published:
>
> http://docs.oracle.com/javase/7/docs/technotes/guides/javaws/developersguide/syntax.html#resources
>
> I was not fully compliant, as I was referencing the argument,  -XX:+UseConcMarkSweepGC.
>
> This is a working JNLP snippet from the previous release (7u8 I think):
>    <resources>
>        <j2se
>            version="1.7+"
>            java-vm-args="-Xmx200m XX:+UseConcMarkSweepGC"
>        />
>        <jar href="my-app.jar"  />
>    </resources>
>
>    <resources os="Mac">
>        <j2se
>            version="1.6+"
>            java-vm-args="-Xmx200m XX:+UseConcMarkSweepGC -Dapple.awt.graphics.UseQuartz=true"
>        />
>    </resources>
>
> Take out the unsupported argument in both places, and it now works.  7u9 does tolerate the GC arg on Windows still.
>
> This is clearly not a bug.  I think a little better could be done on providing feed though.  The program just ENDS.  No warning, failure message, traces, nothing.  This makes it hard to find.
>
> This one took a day.  I was concerned my Lion partition had a bunch of ea stuff which I had tinkered with&  was not stock enough anyway,  so the time to blow it away&  rebuilding it was still worth it.
>
> Finally, after I re-installed, I just went to the Oracle site and installed the JRE.  In Safari, specifying a jnlp, downloads&  starts it.  If you click on the desktop icon for subsequent runs you get message box from Software Update:
> 	"To open "BLAH,BLAH, BLAH" you need a Java SE 6 runtime.  Would you like to install one now?"
>
> No, I do not need this.  This message did NOT come up because I have the 2 j2se tags.  I tried when there was only 1.
>
> If I actually followed through and did that, it would not even use it.  (guess I have to though, starting though cache viewer is a pain).  The test is wrong.  It should be testing for the Oracle plugin installed.
>
>
>
>