Re: [Pydev-users] using jython instead of python

[Fabio Z. <fa...@gm...>]

On Thu, Dec 17, 2015 at 3:12 PM, peter <com...@ya...> wrote:

> hi,
>
>
> when creating a new project, selecting jython and using the default auto
> config i get:
>
> Errors getting info on discovered interpreter(s).
> See error log for details.
>
>    java.lang.RuntimeException: No output was in the standard output when
> trying to create the interpreter info for: /usr/share/java/jython-2.5.3.jar
> The error output contains:>>Exception in thread "main"
> java.lang.NoClassDefFoundError: com/google/common/collect/MapMaker
>      at org.python.core.PyType.fromClass(PyType.java:1280)
>      at org.python.core.PyObject.<init>(PyObject.java:66)
>      at org.python.core.PyBuiltinCallable.<init>(PyBuiltinCallable.java:21)
>      at org.python.core.PyBuiltinMethod.<init>(PyBuiltinMethod.java:16)
>      at
> org.python.core.PyBuiltinMethodNarrow.<init>(PyBuiltinMethodNarrow.java:24)
>      at
> org.python.core.PyType$type___subclasses___exposer.<init>(Unknown Source)
>      at org.python.core.PyType$PyExposer.<init>(Unknown Source)
>      at org.python.core.PyType.<clinit>(PyType.java)
>      at org.python.core.PyObject.<init>(PyObject.java:66)
>      at org.python.core.PyBuiltinCallable.<init>(PyBuiltinCallable.java:21)
>      at org.python.core.PyBuiltinMethod.<init>(PyBuiltinMethod.java:16)
>      at
> org.python.core.PyBuiltinMethodNarrow.<init>(PyBuiltinMethodNarrow.java:24)
>      at
>
> org.python.core.PyDataDescr$getset_descriptor___get___exposer.<init>(Unknown
> Source)
>      at org.python.core.PyDataDescr$PyExposer.<init>(Unknown Source)
>      at org.python.core.PyDataDescr.<clinit>(PyDataDescr.java)
>      at org.python.core.PyBuiltinCallable$PyExposer.<init>(Unknown Source)
>      at org.python.core.PyBuiltinCallable.<clinit>(PyBuiltinCallable.java)
>      at org.python.core.PyObject$PyExposer.<init>(Unknown Source)
>      at org.python.core.PyObject.<clinit>(PyObject.java)
>      at org.python.util.jython.run(jython.java:150)
>      at org.python.util.jython.main(jython.java:129)
> Caused by: java.lang.ClassNotFoundException:
> com.google.common.collect.MapMaker
>      at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
>      at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>      at java.security.AccessController.doPrivileged(Native Method)
>      at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
>      at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>      at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>      ... 21 more
> <<
>
>
>
>
> entering jython in window -> preferences shows the the jython
> interpreter page,
> according to:
> dpkg -L jython| grep jar
> /usr/share/java/jython-2.5.3.jar
> /usr/share/java/jython.jar
>
>
> this is the location of jython, but specifying either with "new..." does
> not work...same error as before.
> default debian jessie installation.
>
> any ideas?
>
>
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​Try downloading the jython from jython.org and using that version instead
of the one in the system to check if it works... (jython should have all
dependencies builtin, but it seems the version you're using doesn't have
them).

Cheers,

Fabio​