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A simple blog system written in Flask.
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QUESTION
I have newly installed
...ANSWER
Answered 2021-Jul-28 at 07:22You are running the project via Java 1.8 and add the --add-opens
option to the runner. However Java 1.8 does not support it.
So, the first option is to use Java 11 to run the project, as Java 11 can recognize this VM option.
Another solution is to find a place where --add-opens
is added and remove it.
Check Run configuration in IntelliJ IDEA (VM options field) and Maven/Gradle configuration files for argLine
(Maven) and jvmArgs
(Gradle)
QUESTION
We are looking a free alternative for jRebel. It seems hotswap agent is a free good alternative for jRebel. But I didn't sure about it supports weblogic server , is there anyone use hotswap agent with weblogic server and how?
...ANSWER
Answered 2022-Jan-31 at 15:11DCEVM and HotswapAgent do not support Weblogic. Maintainers are clear about that, it is mentioned in many issues: here, here and here.
So if you are looking for a solution that will flawlessly work out of the box on WLS, is up-to-date and supported for recent java versions, then I'm afraid DCEVM is not one.
But if your are ok with unsecure, hacky solution, then read on.
The first problem with dcevm and weblogic is to even get it running. I tested weblogic docker image with dcevm + HotswapAgent and most combinations of oraclejdk and dcevm versions cause error or other JVM/WLS crash on startup. Long time ago the maintainers said oraclejdk should work with dcevm, but I guess this is not actively supported/tested and just works by coincidence on some combination of versions. Deep magic used by WLS doesn't help also.
But thanks to some comments I found WLS will start on these two:
- oraclejdk 1.8.0_05 + dcevm installer-light-jdk8u5.52.jar (25.5-b02-dcevmlight-58)
- oraclejdk 1.8.0_25 + dcevm DCEVM-light-8u45-installer.jar (25.45-b02-dcevmlight-15
NOTE: These versions are ancient and probably have lots of security vulnerabilities, use at your own risk.
procedure:
- overwrite original java
/u01/jdk/
in the image, - take
linux_amd64_compiler2/product/libjvm.so
from dcevm installer and put it in/u01/jdk/jre/lib/amd64/dcevm
- add
-XXaltjvm=dcevm
to weblogic commandline. - (optionally) to get HotswapAgent features:
- add
hotswap-agent-core.jar
orhotswap-agent.jar
in/u01/jdk/jre/lib/amd64/hotswap
together with option-javaagent:/u01/jdk/jre/lib/amd64/hotswap/hotswap-agent.jar
on wls commandline - add
hotswap-agent.properties
to your war/ear/classpath - see also https://github.com/HotswapProjects/HotswapAgent/pull/418
- add
Now run a remote debugging session, modify a class by adding a new method and recompile - hotswapping new method is not supported by standard hotswap, it will only work when dcevm is active.
QUESTION
I've been having a problem where on a new installation of PeopleSoft, my PIA doesn't doesn't seem to have the same files as an existing installation. When I access my PeopleSoft site, I'm getting a bunch of Javascript errors about missing functions. When I look in \webserv\peoplesoft\applications\peoplesoft\PORTAL.war\\cache
on my newly setup environment, the contents of the Javascript files don't match what I have in existing environments.
So I decided to try to copy that cache
folder from an existing environment to the new environment to try to troubleshoot. Now the problem is that I'm getting a 403 error with a lot of the .gif files in that directory when a PeopleSoft page loads. It seems like the site is able to access some of the files from the cache
folder, but not all of them.
For instance, if I enter myserver.mydomain.com/cs/myenvironment/cache/PT_NAV_BULLET_1.gif
in the browser's address bar, I get a 403 error.
But if I enter myserver.mydomain.com/cs/myenvironment/cache/PT_NAV_GO.gif
, I can go to that image without a problem.
What could be causing the differences in access? How is WebLogic determining what files are able to be accessed by a site?
...ANSWER
Answered 2022-Jan-06 at 05:05The /cs/ path is a Servlet. PeopleSoft moves files into the cache from the database. With a standard install, it is common to purge the contents of the ../cache/ and let the /cs/ servlet restore as needed. You should not populate that directory yourself.
As PeopleSoft builds the HTML for a page, it creates resource names, such as PT_NAV_BULLET_1.gif. The image definition in app designer is PT_NAV_BULLET. The _1 is the cache version.
I've had 403's when requesting files out of the cache directory when I'm not first signed into PeopleSoft. This makes sense because the /cs/ servlet is handling the request, and it doesn't know who you are.
Try clearing the ../cache/ directory, restart the webserver, and log into PeopleSoft. It should all work as expected. AFter a sign in, if you look at the cache directory, you will notice it suddenly has lots of *.css, *.js, *.png files.
QUESTION
We're migrating our FTP and I would like to only migrate folders that have had files in them that have been used/written in the last 6 months. I would think this would be something that I find all over the place with google, but all the scripts I've found have the same fatal flaw.
It seems with everything I find, it depends on the "Date modified" of the folder. The problem with that is, I have PLENTY of folders that show a "Date Modified" of years ago, yet when you dig into it, there are files that are being created and written as recently as today.
Example: D:/Weblogs may show a date modified of 01/01/2018 however, when you dig into it, there is some folder, idk, called "Log6" let's say, and THAT folder has a log file in it that was modified as recently as yesterday.
All these scripts I'm seeing pull the date modified of the top folder, which just doesn't seem to be accurate.
Is there any way around this? I would expect something like Get all folders at some top level, then foreach through the CONTENTS of those folders looking for files with the datemodified -lt adddays(-180) filter. If stuff that's "New" is found, then don't add the overarching directory to the array, but if not, then list the directory.
Any ideas?
Edit: I've tried this
...ANSWER
Answered 2022-Jan-04 at 04:12Give this a try, I added comments for you to follow along the thought process.
The use of -Force
is mainly to find hidden files and folders.
QUESTION
I'am using gradle+kotlin to build my spring boot application. In time of application starting I've receiving the following error. I understand why this error appeared, because I have 2 different slf4j implementations: logback and org.slf4j.impl(inside gradle-api.6.9.1.jar). I don't include gradleApi() dependency to my build.gradle file. It's appears by it self.
...ANSWER
Answered 2021-Nov-04 at 09:37You can do gradle dependencies
and check which dependency is using slf4j and exclude one using
the exclude command like this exclude(group="org.slf4j", module="slf4j-log4j12"
Am not pretty sure about this easy fix but you can try to add this to your build.gradle first
QUESTION
I am trying to create a regex pattern for one of the prometheus exporter (jmx exporter) configuration file to export weblogic jms queues.
My String is as below
...ANSWER
Answered 2021-Nov-01 at 07:24You could change the number of capture groups from 5 to the 2 that you need in the replacement. Instead of using .+
, you can either use .*?
or use a negated character class to match any char except a commen [^,]+
If the surrounding parenthesis of the example data should not be part of the replacement, you can use:
QUESTION
I want to retrieve the id from a json dict based on a certain name. In this case I would like to get the ID from the "WebLogic" and store it into a variable to use the ID in a next task.
The playbook:
...ANSWER
Answered 2021-Oct-13 at 18:21the problem is at the data.json.values
syntax, please replace with data.json["values"]
the two tasks to show the difference:
QUESTION
JSF, PrimeFaces 6.0, WebLogic.
I have a menuitem like this:
...ANSWER
Answered 2021-Sep-08 at 09:14I found a solution. I add configuration to WEB-INF/weblogic.xml like below and it works.
QUESTION
I'm trying to implement Prim's Algorithm in my maze generator as described here. I've got it working as intended, but with an extra catch in my code of which I'm not sure why it's needed.
In my algorithm, I keep track of a list of cells that make up the maze in maze
.
I then look at the potential frontier cells (neighbouring cells to those that make up the maze), and pick one randomly. Let's call this the frontier
.
I then determine the neighbours of the frontier
, and check which of the neighbours connect to the already existing maze
.
I connect the frontier
node and the adjacent already in-maze node, remove the frontier
node from the list of possible frontiers
, add it to the maze
, and finally add the newly found maze node's neighbours to the frontier
list.
During this process, I make sure to only add nodes to the frontiers
list that are not already contained in maze
. (see the if (neighbour.Cell != null && !maze.Contains(neighbour.Cell))
statements.
However, my Algorithm seems to mess up if I don't end up double checking each chosenFrontier
to see if they're not already contained in the maze.
If I do not do this, the algorithm will end up thinking there's still frontier cells even in places where every adjacent tile is already part of the maze.
Why is this? Why do I need the if { ... } else { ...} statement there for my algorithm to succeed? I'm dumbstruck as to why it would be neccessary, since everywhere I add cells to my frontier
lists, I already check whether they are already contained in maze
. If they are, they aren't added to my frontier
list. Yet somehow if I have to doublecheck my frontier
list for cells that are already contained in the maze (and remove them). Where did I go wrong?
Here's my code:
...ANSWER
Answered 2021-Sep-04 at 21:44You make sure that you only add items to the frontier list if they aren't already in the maze, but they might already be in the frontier list.
Since the frontier list can contain multiple copies of a single cell, you need an additional check to make sure you don't add it to the maze multiple times.
QUESTION
I'm getting the following error code:
Error Code: 1055. Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column 'usergrowthhomework.weblogs.day' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
This code is a result of me attempting to run the following query, which is supposed to return the number of times a 'referrer' appears each month in the year 2020:
...ANSWER
Answered 2021-Aug-28 at 22:29As the error suggests, the day
column in the order by
clause isn't in the group by
clause, and thus can't be used there. You should order by MONTH(day)
instead:
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