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« Return to Thread: JPype // TypeError // Getting it to work with Jar file for first time
Re: JPype // TypeError // Getting it to work with Jar file for first time
by Steve Ménard
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I think I got it :)
It's really one of those very small details ...
import jpype
jvmPath = "C:/Program Files/Java/jdk1.5.0_13/jre/bin/client/jvm.dll"
I believe the problem is here : -DJava.class.path
java's system variable are case-sensitive ... so the J would be a problem (I checked, the capital J was also in your first example).
try with -Djava.class.path and with some luck that'll solve your problem.
Steve Menard
------------------------------
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
Rick Cook, The Wizardry Compiled
------
There are two major products that come out of Berkeley: LSD and UNIX. We don't believe this to be a coincidence.
-- Jeremy S. Anderson
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It's really one of those very small details ...
import jpype
jvmPath = "C:/Program Files/Java/jdk1.5.0_13/jre/bin/client/jvm.dll"
options = "-ea"
jarPath = "-DJava.class.path=C:/Python26/junkTest.jar" jpype.startJVM(jvmPath,options, jarPath)
I believe the problem is here : -DJava.class.path
java's system variable are case-sensitive ... so the J would be a problem (I checked, the capital J was also in your first example).
try with -Djava.class.path and with some luck that'll solve your problem.
Steve Menard
------------------------------
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
Rick Cook, The Wizardry Compiled
------
There are two major products that come out of Berkeley: LSD and UNIX. We don't believe this to be a coincidence.
-- Jeremy S. Anderson
On Tue, Jan 18, 2011 at 5:39 PM, plovet <tr03@...> wrote:
Dear Steve, Raj,
Below is my result of my trying to use JClass.
It is clear that the class is not being found, but I am at a loss to
explain.
FYI, I also tried changing the options to the use the java options that I
typically use when accessing a jar file via a batch file. (I do not see that
it makes any difference)
Thanks,
Timothy
----------Error Message---------
Warning (from warnings module):
File "C:\Python26\lib\site-packages\jpype\_pykeywords.py", line 18
import sets
DeprecationWarning: the sets module is deprecated
File "C:/Python26/testPype3a.py", line 11, in <module>
Traceback (most recent call last):
myClass = jpype.JClass(className)
File "C:\Python26\lib\site-packages\jpype\_jclass.py", line 54, in JClass
raise _RUNTIMEEXCEPTION.PYEXC("Class %s not found" % name)
java.lang.ExceptionPyRaisable: java.lang.Exception: Class junkTest.TestSteam
not found
----------Python Code---------
#testPype3a.py
import jpypeoptions = ("-Xms64m", "-Xmx512m", "-cp") # "-ea"
jvmPath = "C:/Program Files/Java/jdk1.5.0_13/jre/bin/client/jvm.dll"
jarPath = "-DJava.class.path=C:/Python26/junkTest.jar"
className="junkTest.TestSteam"
jpype.startJVM(jvmPath,options, jarPath)
myClass = jpype.JClass(className)
myInstance = myClass()
----------Jar File---------
I used the new jar file in my C:\Python26 folder (see prev. post).
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------------------------------------------------------------------------------
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malware threats, the impact they can have on your business, and how you
can protect your company and customers by using code signing.
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