SOLVED Grails HelloWorld brakes down before i even start - exception

Urlmappings
HelloController
Pls help i followed the "Hello-World-Instruction" on the grails homepage exactly but it throws an error (before i even start it breaks ;D)
tried looking for solution maybe it has to do with my Java Path?
I finished the helloWorld Tut on Tutorial then put "grails run-app" into the shell and then Error!
Linux debian based Distro
Grails Version: 5.1.2
JVM Version: 11.0.1
Groovy Version: 4.0.1 JVM: 11.0.14
Error creating bean 'compositeViewResolver'
enter image description here
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Related

How to fix Kotlin REPL exception NoClassDefFoundError

I'm attempting to run the Kotlin REPL on my windows 10 machine, from the command line. I am receiving a java.lang.NoClassDefFoundError: org/jline/reader/LineReaderBuilder exception when running the command kotlinc
I have IntelliJ Ultimate 2019.1.3 installed, with the Kotlin plugin. I have the Kotlin standalone compiler also installed and I've added that location to my system path. I've tried to run the command from the standalone directory: "C:/Tools/kotlinc/bin" but no difference.
OS Name: Microsoft Windows 10 Enterprise
Version 10.0.16299 Build 16299
Kotlin version 1.3.40-release-123 (JRE 1.8.0_131-b11)
java version "1.8.0_131"
I expect the REPL to start without an exception. What could be causing the exception?
Thank you all!
It looks like that was a bug and it has been fixed with Kotlin plugin & kotlinc version 1.3.41 (released today).

Google-maps-services-java firebase

I have a working Java Firebase Admin SDK application. The moment I add google-maps-services to gradle I get this exception:
Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkState(ZLjava/lang/String;Ljava/lang/Object;)V
at com.google.firebase.FirebaseApp.checkNotDeleted(FirebaseApp.java:317)
at com.google.firebase.FirebaseApp.getOptions(FirebaseApp.java:263)
at com.google.firebase.database.FirebaseDatabase.getInstance(FirebaseDatabase.java:75)
The two lines I added to build.gradle are:
compile group: 'com.google.maps', name: 'google-maps-services', version: '0.2.3'
compile 'org.slf4j:slf4j-nop:1.7.25'
Question: What am I doing wrong trying to use google-maps-services in a Java Firebase Admin SDK application?
I filed an issue here: https://github.com/googlemaps/google-maps-services-java/issues/355
Looks like this will be addressed in a new release.

Grails db-reverse-engineer fails

I am trying to reverse engineer a database schema and I'm getting the following error:
Command execution error: org.hibernate.cfg.Configuration.buildSettings(Lorg/hibernate/service/ServiceRegistry;)Lorg/hibernate/cfg/Settings;
> Building 85% > :dbReverseEngineer :dbReverseEngineer FAILED
> Building 85%
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':dbReverseEngineer'.
Process 'command '/usr/lib/jvm/java-8-openjdk/bin/java'' finished with non-zero exit value 1
Grails version:
| Grails Version: 3.2.6
| Groovy Version: 2.4.7
| JVM Version: 1.8.0_141
Gradle version:
Gradle 3.4.1
I followed these the instructions.
That plugin was last released with Grails 3.0.x. That used gorm 4, I'm pretty sure. (The docs for Grails 3.1 advertise "What's New" to include gorm 5, and Grails 3.2 advertises gorm 6). Maybe Burt will chime in, but as far as I can tell, this plugin isn't going to work well in Grails 3.2.x without being re-released.
You could try running it in 3.0.11, just to reverse engineer your classes, and then move those into your real project, as a workaround.

Why isn't this SalesforceCanvasFrameworkSDK “Hello World” application for SFDC Canvas working?

Currently I'm looking in the Force.com Canvas Developer's Guide at "Chapter 3: Quick Start--Advanced".
I've successfully cloned SalesforceCanvasFrameworkSDK from GitHub, and am now trying to Run the Web App Locally.
The build is successful and keystore has been created. However, when I execute target\bin\webapp.bat, I get the following error:
Error: Could not find or load main class Main
Find that the main class seems to be in C:\SalesforceCanvasFrameworkSDK\target\classes, I modified the .bat file, to include this in the CLASSPATH:
set CLASSPATH="C:\SalesforceCanvasFrameworkSDK\target\classes;%BASEDIR%"\etc;"%REPO%"\javax\servlet\servlet-api\2.5\servlet-api-2.5.jar;"%REPO%"\org\mortbay\jetty\jsp-2.1-glassfish\2.1.v20100127\jsp-2.1-glassfish-2.1.v20100127.jar;"%REPO%"\org\eclipse\jdt\core\compiler\ecj\3.5.1\ecj-3.5.1.jar;"%REPO%"\org\mortbay\jetty\jsp-api-2.1-glassfish\2.1.v20100127\jsp-api-2.1-glassfish-2.1.v20100127.jar;"%REPO%"\ant\ant\1.6.5\ant-1.6.5.jar;"%REPO%"\org\codehaus\jackson\jackson-mapper-asl\1.9.0\jackson-mapper-asl-1.9.0.jar;"%REPO%"\org\codehaus\jackson\jackson-core-asl\1.9.0\jackson-core-asl-1.9.0.jar;"%REPO%"\org\eclipse\jetty\jetty-webapp\7.6.0.v20120127\jetty-webapp-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-xml\7.6.0.v20120127\jetty-xml-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-util\7.6.0.v20120127\jetty-util-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-servlet\7.6.0.v20120127\jetty-servlet-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-security\7.6.0.v20120127\jetty-security-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-server\7.6.0.v20120127\jetty-server-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-continuation\7.6.0.v20120127\jetty-continuation-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-http\7.6.0.v20120127\jetty-http-7.6.0.v20120127.jar;"%REPO%"\org\eclipse\jetty\jetty-io\7.6.0.v20120127\jetty-io-7.6.0.v20120127.jar;"%REPO%"\asm\asm\3.2\asm-3.2.jar;"%REPO%"\org\json\json\20080701\json-20080701.jar;"%REPO%"\commons-httpclient\commons-httpclient\3.1\commons-httpclient-3.1.jar;"%REPO%"\commons-logging\commons-logging\1.0.4\commons-logging-1.0.4.jar;"%REPO%"\commons-codec\commons-codec\1.4\commons-codec-1.4.jar;"%REPO%"\sfdc\sfdc-canvas-sdk\1.0-SNAPSHOT\sfdc-canvas-sdk-1.0-SNAPSHOT.jar
This enables the batch file to execute and initiate Jetty.
However, when I attempt to visit https://localhost:8443/examples/hello-world/index.jsp, after getting past the browser warning message, I get an HTTP ERROR 500 page:
HTTP ERROR 500
Problem accessing /examples/hello-world/index.jsp. Reason:
PWC6033: Unable to compile class for JSP
PWC6199: Generated servlet error: The type java.util.Map$Entry cannot
be resolved. It is indirectly referenced from required .class files
Caused by:
org.apache.jasper.JasperException: PWC6033: Unable to compile class
for JSP
PWC6199: Generated servlet error: The type java.util.Map$Entry cannot
be resolved. It is indirectly referenced from required .class files
at
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:123)
at
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:296)
at
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:376)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:437) at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:360)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:521)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:349) at
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
at
org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
at
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:910)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
at
org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at
org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
at
org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
at
org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.run(SslSocketConnector.java:665)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
at java.lang.Thread.run(Thread.java:745) Powered by Jetty://
Concurrently, my Jetty server dies with:
ERROR: Compilation error
org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException
at org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader.(ClassFileReader.java:372)
at org.apache.jasper.compiler.JDTJavaCompiler$1.findType(JDTJavaCompiler.java:367)
at org.apache.jasper.compiler.JDTJavaCompiler$1.findType(JDTJavaCompiler.java:324)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:102)
at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve(UnresolvedReferenceBinding.java:49)
at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.resolveType(BinaryTypeBinding.java:122)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1188)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromVariantTypeSignature(LookupEnvironment.java
:1244)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeArgumentsFromSignature(LookupEnvironment.java:1
031)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getTypeFromTypeSignature(LookupEnvironment.java:1193)
at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createMethod(BinaryTypeBinding.java:495)
at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createMethods(BinaryTypeBinding.java:577)
at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.cachePartsFrom(BinaryTypeBinding.java:327)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:640)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom(LookupEnvironment.java:619)
at org.eclipse.jdt.internal.compiler.Compiler.accept(Compiler.java:295)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:133)
at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:183)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:465)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:519)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInImports(CompilationUnitScope.java:368)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:444)
at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:752)
at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:464)
at org.apache.jasper.compiler.JDTJavaCompiler.compile(JDTJavaCompiler.java:503)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:368)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:437)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:360)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:521)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:349)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:910)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
at org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.run(SslSocketConnector.java:665)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
at java.lang.Thread.run(Thread.java:745) ERROR: Error compiling file:
C:\Users\Brian_Kessler#epam.com\AppData\Local\Temp\jetty-0.0.0.0-8443-webapp-_-any-\jsp\org\apa
che\jsp\examples\hello_002dworld\index_jsp.java 2014-12-11
15:35:48.106:WARN:oejs.ServletHandler:/examples/hello-world/index.jsp
org.apache.jasper.JasperException: PWC6033: Unable to compile class
for JSP||PWC6199: Generated servlet error:|The type java
.util.Map$Entry cannot be resolved. It is indirectly referenced from
required .class files||
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:123)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:296)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:376)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:437)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:360)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:565)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:479)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:521)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1031)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:406)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:965)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:349)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:449)
at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:910)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
at org.eclipse.jetty.server.ssl.SslSocketConnector$SslConnectorEndPoint.run(SslSocketConnector.java:665)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
at java.lang.Thread.run(Thread.java:745)
If it is relevant:
OS: Windows 7
Java: 1.8.0_25
Maven: 3.2.2
Any help to resolve this will be appreciated!
I was able to fix this as follows on MacOS Sierra 10.13.6
The problem does seem to be with Java 8, so if you can start the whole installation with Java 7, you'll save a lot of time. In my case, I had already installed Java 8, so I had to do the following:
1- Install java 7 from: https://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html . You have to create an Oracle account, it's free.
2- Confirm both versions of java are runningv
Pablos-MacBook-Pro:SalesforceCanvasFrameworkSDK pabloalvarez$ /usr/libexec/java_home -V
Matching Java Virtual Machines (2):
1.8.0_191, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home
1.7.0_80, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home
3- Then
export JAVA_HOME=`/usr/libexec/java_home -v 1.7.0_80`
export JAVACMD=`/usr/libexec/java_home -v 1.7.0_80`
Confirm that Java 7 is the default version now
Pablos-MacBook-Pro:SalesforceCanvasFrameworkSDK pabloalvarez$ java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
5- Then
export JAVACMD=/usr/bin/java
6- Finally
Pablos-MacBook-Pro:SalesforceCanvasFrameworkSDK pabloalvarez$ sh target/bin/webapp
Looks like we are NOT running on heroku.
2019-01-14 10:54:48.557:INFO:oejs.Server:jetty-7.6.0.v20120127
2019-01-14 10:54:48.863:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/,file:/Users/pabloalvarez/SalesforceCanvasFrameworkSDK/src/main/webapp/}
2019-01-14 10:54:49.252:INFO:oejus.SslContextFactory:Enabled Protocols [SSLv2Hello, TLSv1, TLSv1.1, TLSv1.2] of [SSLv2Hello, SSLv3, TLSv1, TLSv1.1, TLSv1.2]
Good luck!

Getting 'java.sql.SQLException: com.mysql.jdbc.Driver' with grails run-app (when BuildConfig.groovy doesn't need to be recompiled)

I've upgraded my grails application from 1.3.9 to 2.2.3 and then to 2.3.3. I read the release and upgrade notes for 1.3.9->2.2.3 and then from 2.2.3->2.3.3
I am using OpenJDK 6, Jetty 6 and the plugin jetty 1.1, MySQL 5.5 and I have the connector library under lib
Now my issue is if I run grails clean and then grails run-app the application runs without any problems but if I stop it and run grails run-app again I get a gigantic error (see here: http://pastebin.com/36MpXhir)
I also found that changing something like adding a space somewhere in BuildConfig.groovy (anything that makes it be recompiled) makes the application run normally.
Looking at the stacktrace the first thing that puzzles me is
[02.12.13 16:13:59.919] [main] pool.ConnectionPool Unable to create initial connections of pool.
java.sql.SQLException: com.mysql.jdbc.Driver
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:254)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:486)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:144)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:127)
at org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy.afterPropertiesSet(LazyConnectionDataSourceProxy.java:162)
There are references to org.apache.tomcat even though I'm using jetty (and removed tomcat from BuildConfig.groovy).
Did anyone else encounter such a problem?
Don't put jar files in the lib directory if they're available in a public Maven repo. It's far better to download jars once and keep them in a local cache, and reuse them as needed.
The MySQL driver is used as the commented-out example in the generated BuildConfig.groovy - just un-comment it :) You might want to bump up the version to the latest, e.g.
dependencies {
runtime 'mysql:mysql-connector-java:5.1.27'
}
This is a good site for finding Maven artifacts: http://mvnrepository.com/artifact/mysql/mysql-connector-java
If you do have a jar that's not in a Maven repo (e.g. one with shared code at your company) then you can put it in the lib directory, but it's not auto-discovered. Run grails compile --refresh-dependencies to get it added to the classpath.
For me same error has occurred while running the Grails Application.Then I debug and view the code history of my code which was committed recently.
From that I found the issue that was:
Inside the controller file I send the instance with-out properly
Eg:
**def list=[personInstance.]---> error occurred.**
**render list as JSON**
Then I correct my mistake-->clean the app --> run the app
Now its working fine.