java.util.regex.Matcher.appendReplacement(Matcher.java:857) : IllegalArgumentException

threw exception

java.lang.IllegalArgumentException: Illegal group reference

    at java.util.regex.Matcher.appendReplacement(Matcher.java:857)

    at com.famposo.web.lib.HTML5TemplateEnigne.parse(HTML5TemplateEnigne.java:200)

    at com.famposo.web.view.Page.index(Page.java:36)

 

Solution: 

 

 

 matcher.appendReplacement(sb, text);

replace with 

m.appendReplacement(sb, Matcher.quoteReplacement(text));

it works 

i found this ref here 

 https://www.javamex.com/tutorials/regular_expressions/search_replace_loop.shtml

WARNING! Powershell script execution unavailable

C:\cassandra\bin>cassandra.bat start

WARNING! Powershell script execution unavailable.

Please use 'powershell Set-ExecutionPolicy Unrestricted'

on this user-account to run cassandra with fully featured

functionality on this platform.

https://stackoverflow.com/questions/29259347/cassandra-powershell-issue

Get-ExecutionPolicy -Scope CurrentUser

Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope CurrentUser

///finally////

C:\cassandra\bin>cassandra.bat

Detected powershell execution permissions. Running with enhanced startup scripts.

///////for security reason // you can revoke after the execution of cassandra .bat

 

Set-ExecutionPolicy -ExecutionPolicy restricted -Scope CurrentUser

Problem while loading CDI Extensions using Tom EE plus

19-May-2019 02:32:20.745 SEVERE [http-nio-8080-exec-6] org.apache.webbeans.service.DefaultLoaderService.load Problem while loading CDI Extensions

java.util.ServiceConfigurationError: javax.enterprise.inject.spi.Extension: Provider org.apache.bval.cdi.BValExtension could not be instantiated

Caused by: java.lang.AbstractMethodError: org.hibernate.validator.internal.engine.ConfigurationImpl.getBootstrapConfiguration()Ljavax/validation/BootstrapConfiguration;

//////////////Sol//////////////////////////////////

https://stackoverflow.com/questions/47504253/tomee-error-while-loading-cdi-extensions

Check you use a compatible bean validation version (1.1).

https://stackoverflow.com/questions/35798765/bean-validation-api-needed-when-using-hibernate-validator-engine

<dependency>

<groupId>org.hibernate</groupId>

<artifactId>hibernate-validator</artifactId>

<version>5.2.4.Final</version>

<scope>provided</scope>

</dependency>

<version>5.2.4.Final</version> change the version to what is already added as dependecy by kundera module

<version>4.3.0.Final</version> one i have added

problem resolved