On 13.02.2017 21:28, Erich Steinböck wrote:
> Rony, I've built a 5.0 32-bit Debug installer and uploaded it to our files
> section as
> oorexx/5.0.0beta/ooRexx.5.0.0.0-x86_32-debug.exe
Thank you *very* much for the debug build!
Still trying to set up the environment to have both functional, Rexx loading
Java via BSF4ooRexx,
and starting with devenv according to Rick's advice.
>
> does not run on ooRexx 4.2.0 as such an exception is thrown on the Rexx
> side, but works on
> ooRexx 5.0beta flawlessly
>
> Not sure I understand .. if it works on 5.0, then there's no need to debug
There is one Rexx sample using JavaFX that breaks on 4.2.0 and runs on 5.0.0.
Independent of this there is an exception using BSF4ooRexx support for
javax.script on 5.0. The
exception is in rexx.dll, but could be caused by BSF4ooRexx as well.
The circumstances are as follows:
* Rexx runs a Rexx program that uses BSF4ooRexx, which will load Java
(jvm.dll),
* then the Rexx program will use the javax.script package to create a new
Rexx interpreter
instance and run a "Rexx script" program, supplying a "ScriptContext",
o The "Rexx script" program is a normal Rexx program that may have "Rexx
script annotations"
(in block comments) that will cause injection of Rexx code, before
running the "Rexx script"
on the new Rexx interpreter instance
o The injected code will use a Rexx class (.JSR223) in the BSF.CLS
package to get or set
attributes in Bindings that the "ScriptContext" manages
+ in the case of a "get" operation, attribute entries in the (Java)
Bindings will be
incorporated as context Rexx variables
+ in the case of a "set" operation, context Rexx variables will be
used to set their
corresponding attribute entries in the (Java) Bindings
The main Rexx program as well as Java (and the Rexx script program) run in the
same thread.
A test script with a sequence of such "get" and "set" annotations will cause an
exception, if
debugging output in the methods of the .JSR223 class occur under some
circumstances. Here a snippet
from that test script showing the injected Rexx code:
... cut ... say " |1|"~copies(20) say "setting all Rexx variables (only 'S'
for which no
attribute exists)" ; .jsr223~set(*arg(arg())**~scriptContext*, "",
BSFContextVariables('get')) ;
/* @set() */ say " |2|"~copies(20) say "setting all Rexx variables (only
'S' for which no
attribute exists)" ; .jsr223~set(*arg(arg())~scriptContext*, "s",
BSFContextVariables('get')) ;
/* @set(s) */ ... cut ...
There are two observations I could make from studying the error situation:
* sometimes there is a Rexx error message that indicates that "arg(arg()" all
of a sudden does not
return the same object (BSF4ooRexx adds a Rexx directory object as the last
argument, which in
this case stores the Java ScriptContext object under the index name
"SCRIPTCONTEXT") anymore,
one such error message:
38 *-* call BSFContextVariables 'set',
.jsr223~get(arg(arg())~scriptContext, """d1"" d2") ;
Error 97 running test_set_attributes.rex line 38: Object method not found.
Error 97.1: Object "a
Method" does not understand message "SCRIPTCONTEXT".],
object.getClass()=[class
org.rexxla.bsf.engines.rexx.RexxException] *-* Compiled routine "BSF". 1802
*-* res=BSF(
"invoke", "org.rexxla.bsf.engines.rexx.jsr223.RexxScriptEngine@6e1b77",
"EVAL" , a.1 , a.2 )
1804 *-* interpret code ")" -- execute this dynamically created Rexx string
90 *-*
obj=rse~eval(.bsf~new("java.io.FileReader",filename), sc) -- now let us
execute the Rexx script
Error 40 running
F:\test\orx\rexxScript\RexxTestAttributes_with_blanks_host.rex line 90:
Incorrect call to routine. Error 40.900: BSF4ooRexx/routine/BSF(), error 3:
Java exception
occurred: [org.rexxla.bsf.engines.rexx.RexxException:
BSF4ooRexx/routine/jniRexxSendMessageToRexxObject(), error 4:? 38 *-* call
BSFContextVariables
'set', .jsr223~get(arg(arg())~scriptContext, """d1"" d2") ;?Error 97 running
test_set_attributes.rex line 38: Object method not found.?Error 97.1:
Object "a Method" does not
understand message "SCRIPTCONTEXT".].
Sometimes the empty string "" is returned instead.
The notable thing here is that "arg(arg())" has been used successfully in
the same sequence of
invocations. E.g. the above code snippet would always allow the first
invocation to be carried
out correctly and a few code lines later when re-issuing the "arg(arg())" a
different value gets
returned yielding the above error message. However, this is only rarely the
case as most of the
times exceptions occur.
* most of the times I only get the exception and Java's "hs_err_pidNNNN.log"
where an exception is
recorded like:
# # A fatal error has been detected by the Java Runtime Environment: # #
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x622fb358, pid=2844,
tid=0x00001d60 # # JRE
version: Java(TM) SE Runtime Environment (8.0_121-b13) (build
1.8.0_121-b13) # Java VM: Java
HotSpot(TM) Client VM (25.121-b13 mixed mode windows-x86 ) # Problematic
frame: # C
[rexx.dll+0x2b358] # # Failed to write core dump. Minidumps are not enabled
by default on client
versions of Windows # # An error report file with more information is saved
as: #
F:\test\orx\rexxScript\hs_err_pid2844.log # # If you would like to submit a
bug report, please
visit: # http://bugreport.java.com/bugreport/crash.jsp # The crash happened
outside the Java
Virtual Machine in native code. # See problematic frame for where to report
the bug. #
It seems that this exception occurs upon return from the .JSR223-method.
Will have to add debug
code for the BSF4ooRexx external Rexx function BSFContextVariables() which
allows to get, set
and drop Rexx context variables.
If you have ideas what to look for in Visual Studio once I am able to get the
debugging working, I
would appreciate it as I have no knowledge/expertise there.
---rony
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