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How can a JACC provider use the Principal-to-role mapping facilities of the server it's deployed on?
...ur JACC provider for each container. For JBoss, for example, you could use one of the subclasses of AbstractRolesMappingProvider.
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Generating matplotlib graphs without a running X server [duplicate]
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@Neil's answer is one (perfectly valid!) way of doing it, but you can also simply call matplotlib.use('Agg') before importing matplotlib.pyplot, and then continue as normal.
E.g.
import matplotlib as mpl
mpl.use('Agg')
import matplotlib.py...
Clear MySQL query cache without restarting server
...ool with 10 connections. We were facing the issue of data being written by one connection and read by other and it was caching heavily. This one seems to help a lot. Thx,
– psuhas
Oct 23 '16 at 1:43
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Very Long If Statement in Python [duplicate]
...ef __init__(self, width, height,
color='black', emphasis=None, highlight=0):
if (width == 0 and height == 0 and
color == 'red' and emphasis == 'strong' or
highlight > 100):
raise ValueError("sorry, you lose")
if width ==...
Remove and Replace Printed items [duplicate]
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One way is to use ANSI escape sequences:
import sys
import time
for i in range(10):
print("Loading" + "." * i)
sys.stdout.write("\033[F") # Cursor up one line
time.sleep(1)
Also sometimes useful (for example if...
Shortcut to Apply a Formula to an Entire Column in Excel [closed]
... This did not work in Excel 2013 with the formula already applied to one cell. Ctrl+D worked in RobinCTS post.
– Brett Mathe
Jun 19 '14 at 14:35
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Count elements with jQuery
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$('.class').length
This one does not work for me. I'd rather use this:
$('.class').children().length
I don't really know the reason why, but the second one works only for me. Somewhy, either size doesn't work.
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Run jar file in command prompt [duplicate]
...mand if you dont have a manifest or to run a different main class than the one specified in the manifest:
java -cp foo.jar full.package.name.ClassName
See also instructions on how to create a manifest with an entry point:
https://docs.oracle.com/javase/tutorial/deployment/jar/appman.html
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How to sort ArrayList in decreasing order?
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Here's one way for your list:
list.sort(null);
Collections.reverse(list);
Or you could implement your own Comparator to sort on and eliminate the reverse step:
list.sort((o1, o2) -> o2.compareTo(o1));
Or even more simply us...
How to correctly sort a string with a number inside? [duplicate]
...u wish to sort text with floats, then you'll need to change the regex from one that matches ints (i.e. (\d+)) to a regex that matches floats:
import re
def atof(text):
try:
retval = float(text)
except ValueError:
retval = text
return retval
def natural_keys(text):
...