ClassNotFoundException at HostServicesDelegate

[Yasumasa Suenaga]

Hi Kevin,

>    java -addmods javafx.deploy ....
>
> We will need a fix that doesn't require this.

I guess you will fix to add exports directive to module-info.java in closed source.
However, I think we should fix as below:

----------------
diff -r 3597495167c7 modules/graphics/src/main/java/com/sun/javafx/application/HostServicesDelegate.java
--- a/modules/graphics/src/main/java/com/sun/javafx/application/HostServicesDelegate.java       Tue Jun 28 01:48:07 2016 +0530
+++ b/modules/graphics/src/main/java/com/sun/javafx/application/HostServicesDelegate.java       Wed Jun 29 23:53:07 2016 +0900
@@ -55,7 +55,6 @@
                                  getInstanceMeth = factoryClass.getMethod(
                                          "getInstance", Application.class);
                              } catch (Exception ex) {
-                                ex.printStackTrace();
                                  return null;
                              }
                          }
----------------

Otherwise, the user who uses pure OpenJFX will see this stack trace.
I think this exception can be ignored.
So it should not be printed.


Thanks,

Yasumasa


On 2016/06/29 0:44, Kevin Rushforth wrote:
> A workaround is:
>
>    java -addmods javafx.deploy ....
>
> We will need a fix that doesn't require this.
>
> -- Kevin
>
>
> Kevin Rushforth wrote:
>> Thanks for the pointer. That was enough for me to reproduce the bug. I filed the following issue to track it:
>>
>> https://bugs.openjdk.java.net/browse/JDK-8160464
>>
>> -- Kevin
>>
>>
>> Yasumasa Suenaga wrote:
>>>
>>> Hi Kevin,
>>>
>>> I use JDK 9 EA b124 for Windows x64 from java.net <http://java.net>.
>>>   https://jdk9.java.net/download/
>>>
>>> If you want to full stack trace, please download from here:
>>>   http://icedtea.classpath.org/bugzilla/attachment.cgi?id=1540&action=edit <http://icedtea.classpath.org/bugzilla/attachment.cgi?id=1540&action=edit>
>>>
>>> This exception does not occur on OracleJDK 8. So I guess this exception is  from Java FX 9.
>>>
>>> Thanks,
>>>
>>> Yasumasa
>>>
>>> 2016/06/28 23:52 "Kevin Rushforth" <kevin.rushforth at oracle.com <mailto:kevin.rushforth at oracle.com>>:
>>>
>>>     Hi Yasumasa,
>>>
>>>     I assume this is a download of the Oracle JDK from java.net
>>>     <http://java.net>? We haven't seen any problems like this, so it
>>>     might be a problem with HeapStats analyzer. The class in question
>>>     is a closed-source class that lives in the javafx.deploy module.
>>>     What exactly are you running?
>>>
>>>     -- Kevin
>>>
>>>
>>>     Yasumasa Suenaga wrote:
>>>
>>>         Hi all,
>>>
>>>         When I ran HeapStats Analyzer [1] on JDK 9 EA b124, I
>>>         encountered ClassNotFoundException as below:
>>>         ------------
>>>         java.lang.ClassNotFoundException:
>>>         com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory
>>>                 at
>>>         jdk.internal.loader.BuiltinClassLoader.loadClass(java.base at 9-ea/BuiltinClassLoader.java:366)
>>>
>>>                 at
>>>         java.lang.ClassLoader.loadClass(java.base at 9-ea/ClassLoader.java:419)
>>>                 at java.lang.Class.forName0(java.base at 9-ea/Native Method)
>>>                 at java.lang.Class.forName(java.base at 9-ea/Class.java:378)
>>>                 at
>>>         com.sun.javafx.application.HostServicesDelegate.lambda$getInstance$0(javafx.graphics at 9-ea/HostServicesDelegate.java:52)
>>>
>>>                   :
>>>         ------------
>>>
>>>         This message does not appear on JDK 8u92.
>>>         I think this message is printed at [2].
>>>
>>>         I think this exception message do not need to be printed.
>>>         At least, it is debug level.
>>>
>>>         Does someone work for it?
>>>         If not so, I want to contribute patch.
>>>
>>>
>>>         Thanks,
>>>
>>>         Yasumasa
>>>
>>>
>>>         [1] http://icedtea.classpath.org/wiki/HeapStats
>>>         [2]
>>>         http://hg.openjdk.java.net/openjfx/9-dev/rt/file/3597495167c7/modules/graphics/src/main/java/com/sun/javafx/application/HostServicesDelegate.java#l58
>>>
>>>