kandi X-RAY | mchange-commons-java Summary
kandi X-RAY | mchange-commons-java Summary
mchange-commons-java
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Top functions reviewed by kandi - BETA
- Generates the class
- Generates a setter for a property setter with a getExpression
- Write getter method getter
- Generates a string representation of the given modifiers
- Main entry point
- Recursive prechecking of packages
- Prints the usage
- Write debug file
- Returns the JVM stack traces of the current thread
- Convert a float to its string representation
- Entry point to the program
- Generate code for the class
- Initialize the pbr items
- Write store object
- Generate the annotated properties
- Return a string representation of the status
- Generate the clone method
- Generate the String representation of this class
- Create a reference to the bean
- Outputs the class properties
- Write all other non - constrained functions
- Generate the code for the class
- Check if two beans are equal by accessor
- Find property elements
- Generates a VM ID
- Overwrites all accessible properties in the given source bean to the destination bean
mchange-commons-java Key Features
mchange-commons-java Examples and Code Snippets
Community Discussions
Trending Discussions on mchange-commons-java
QUESTION
Before anyone mark this as a duplicate, I referenced this stackoverflow question before posting here, I tried all solutions in that thread but still it is not working for me. I am migrating a legacy java project into spring boot application. When I start the server I am getting this stacktrace,
...ANSWER
Answered 2021-Apr-08 at 15:49This might have to do with you not using Generics
with your java Collections
QUESTION
When I update my dependencies I get this error
...ANSWER
Answered 2020-Dec-05 at 17:04The
mchange-commons-java
dependancy is unnecessary since it is contained in the
com.mchangec3p0
dependancy. Replace your pom.xml
with this:
QUESTION
Current setup:
Service host (Java) connects to (JDBC) master DB (MySQL) and has a slave (read-only) for reliability
Scenario:
In case of flip, I need to upgrade slave to new master. Present master becomes read-only and new master is promoted to read-write. I am looking to automatically refresh the C3P0 connection pool to the new master using a test query (executing writable query to database).
Idea:
Exploring a way to auto refresh JDBC connection pool so that they connect to new master when there is a flip (present master would be RO and slave would be promoted to RW and master cname would be updated)
Present config
...ANSWER
Answered 2020-Aug-19 at 19:54I can't comment on the larger failover issue, but you certainly can define a ConnectionTester
that does basically anything you want.
See the apidocs for the UnifiedConnectionTester
interface for concise instructions.
c3p0
's built-in ConnectionTester uses Statement.executeQuery(...)
so INSERT
s etc may not work. Your custom ConnectionTester
can do whatever it wants. You should be sure it does something sane if preferredTestQuery
and rootCauseOutParamHolder
are set null
(in either method).
If you wish you may ignore preferredTestQuery
, or require that it be null (ie throw an Exception
if preferredTestQuery
is set).
QUESTION
I am new in programming and making my first program using all resources I can found on internet. So I made Java with Maven Application using NetBeans 11.2. I finally made to the point when I complied my program and now I am stuck. I tried to run it from Command Prompt and issues begone. First I had to deal with NoClassDefFoundError: AbsoluteLayout
issue. I had to fix it by changing Layout in whole project to NullLayout
. After finally program started i got another error NoClassDefFoundError: com/mchange/v2/c3p0/ComboPooledDataSource
. For several day I am trying to find answer and still no luck. Tried every suggested steps.
- Checked the pom.xml file - dependencies listed.
- Checked libraries in NetBeans - libraries included
- Reconfigured Maven for NetBeans.
- Clean and rebuild project numerous times with different option (just Build, clean and build, and sow on)
Looks like for some reason dependencies doesn't want to load.
Can anybody help me please.
Thank you.
...ANSWER
Answered 2020-Jan-28 at 00:19Thanks to @Simon finally solved that issue and moving to next stage. I also had to modify my pom.xml's file build section using this article (https://crunchify.com/how-to-create-build-java-project-including-all-dependencies-using-maven-maven-resources-maven-dependency-maven-jar-plugin-tutorial/). Maybe somebody will find it helpful.
QUESTION
I work with a multi-module gradle project (12 modules). I inherited the project and I need to update the versions of some libraries used in it.
I am trying to switch to using the hibernate-core version 5.4.10.Final. I can’t understand the cause of this error:
...ANSWER
Answered 2020-Jan-17 at 04:53Thanks to @StanislavL for the tip! If you change the version of the used hibernate-search module to "5.4.0. Final", the error disappears. I have not tested newer versions yet.
QUESTION
I'm currently working on a Spring boot Backend, it's my task to update all dependencies and make sure it'll run in Java 11.
I encountered an exception and found out that importing Spring data commons with maven solves the missing pageableCustomizer()
method.
ANSWER
Answered 2019-Aug-22 at 13:48Problem could be the dependency for spring-data-releasetrain on the Fowler-SR2 release train version.
This release train is a few years old see the maven pom. You'll want to take a look as to why that is included in your pom.
QUESTION
I have used Spring Boot before but not for a web app. I am in very early development phase on this project (I just finished building the entity classes) and i'm facing a strange exception when running the project :
...ANSWER
Answered 2018-Aug-05 at 14:38It looks like you are reference the mchange
c3p0
framework in your code but I don't see a reference to that in your pom
file.
Trying adding this as a dependency in your pom
file:
QUESTION
Please, can someone help? I am trying to run the application but it keeps getting this error. Did someone have a similar problem? Running gradle app
...ANSWER
Answered 2019-Jan-07 at 22:53Timeout errors are typically an error not caused by your application itself - it's a problem with the connection to the SQL database.
If you are working on the DB locally, then you can check the timeout settings and modify them in order to cope with the delay in the request calls.
If you are working on a remote DB m/c, then maintaining a consistent Connection is needed. If you are unsure about how to keep the connection consistent with your machine to the DB machine, then write a simple batch script which pings the DB server and keeps the Connection alive for your application to send a request.
QUESTION
In my Spring Boot 2.0.0.M6 application, I have installed LiquiGraph by using the following Maven dependencies:
...ANSWER
Answered 2019-Jan-04 at 05:52tl;dr;
Add management.health.db.enabled=false
to your config.
Details
Because you are also registering a JDBC DataSource in your config to work with liquigraph, the auto configuration of SpringBoot kicks in and registers an additional HealthIndicator
for this db. You can deactivate this indicator by setting management.health.db.enabled=false
.
Just some more information for you if you plan to upgrade to SpringBoot 2.0.0.M7: The configuration for health check has changed to:
QUESTION
I try to configure log4j2 to use MongoDB in a gradle project, when I run in Eclipse and my tests it's work fine, but When I generate a jar and start it I get a error:
2018-08-13 09:30:11,534 main ERROR Unable to locate plugin type for MongoDb 2018-08-13 09:30:11,548 main ERROR Unable to locate plugin for MongoDb 2018-08-13 09:30:11,597 main ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.nosql.NoSqlAppender for element NoSql: java.lang.NullPointerException java.lang.NullPointerException at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.findNamedNode(PluginElementVisitor.java:103) at org.apache.logging.log4j.core.config.plugins.visitors.PluginElementVisitor.visit(PluginElementVisitor.java:87) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.injectFields(PluginBuilder.java:181) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:959) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:899) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:891) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:514) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:238) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:250) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:547) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:619) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:636) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:231) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:153) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:581) at br.com.serversocket.main.Main.(Main.java:15)
2018-08-13 09:30:11,607 main ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.nosql.NoSqlAppender for element NoSql: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.nosql.NoSqlAppender java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.nosql.NoSqlAppender at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.findFactoryMethod(PluginBuilder.java:235) at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:135) at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:959) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:899) at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:891) at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:514) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:238) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:250) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:547) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:619) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:636) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:231) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:153) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:581) at br.com.serversocket.main.Main.(Main.java:15)
2018-08-13 09:30:11,617 main ERROR Null object returned for NoSql in appenders. 2018-08-13 09:30:11,655 main ERROR Unable to locate appender "NoSql" for logger config "root"
my log4j2.yaml:
...ANSWER
Answered 2018-Aug-16 at 12:44I solved my problem using 2 gradle's plugin:
shadow: http://imperceptiblethoughts.com/shadow/#shadowing_gradle_plugins
and this plugin to fix a incompability with log4j:
https://github.com/TheBoegl/shadow-log4j-transformer#using-the-gradle-plugin-dsl
follow my build.gradle:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install mchange-commons-java
You can use mchange-commons-java like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the mchange-commons-java component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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