Hi Joel, Google tells me that you might be compiling your project with a JDK that is a newer version than the JVM you are subsequently using to run the application. Is that possible in your case ?
Michael On 5 August 2011 12:38, joel rodriguez <[email protected]> wrote: > Hi Michael, > > Here's the pom.xml: > > <project xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd";> > <modelVersion>4.0.0</modelVersion> > > <groupId>org.geotools</groupId> > <artifactId>tutorial</artifactId> > <version>8-SNAPSHOT</version> > <packaging>jar</packaging> > > <name>tutorial</name> > <url>http://maven.apache.org</url> > > > <properties> > <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> > <geotools.version>8-SNAPSHOT</geotools.version> > </properties> > > > > <dependencies> > <dependency> > <groupId>junit</groupId> > <artifactId>junit</artifactId> > <version>3.8.1</version> > <scope>test</scope> > </dependency> > <dependency> > <groupId>org.geotools</groupId> > <artifactId>gt-shapefile</artifactId> > <version>${geotools.version}</version> > </dependency> > <dependency> > <groupId>org.geotools</groupId> > <artifactId>gt-swing</artifactId> > <version>${geotools.version}</version> > </dependency> > </dependencies> > <repositories> > <repository> > <id>maven2-repository.dev.java.net</id> > <name>Java.net repository</name> > <url>http://download.java.net/maven/2</url> > </repository> > <repository> > <id>osgeo</id> > <name>Open Source Geospatial Foundation Repository</name> > <url>http://download.osgeo.org/webdav/geotools/</url> > </repository> > <repository> > <snapshots> > <enabled>true</enabled> > </snapshots> > <id>opengeo</id> > <name>OpenGeo Maven Repository</name> > <url>http://repo.opengeo.org</url> > </repository> > </repositories> > > </project> > > > and full trace error: > > Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad > version number in .class file > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:676) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) > at java.net.URLClassLoader.access$100(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:317) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:375) > > Thanks, > > Joel > > On Thu, Aug 4, 2011 at 10:19 PM, Michael Bedward <[email protected]> > wrote: >> >> Hi Joel, >> >> Please post your complete pom.xml file and the full error trace if you >> can. >> >> cheers >> Michael >> >> On 5 August 2011 11:50, joel rodriguez <[email protected]> wrote: >> > Hi Michael, >> > >> > I followed the tutorial to the end, I had many errors but all except one >> > were solved when I added the </project> at the end of the pom.xml file >> > (I >> > was deleting that tag when I copy/paste the dependencies into the >> > pom.xml). >> > >> > I had another error on: >> > >> > // Now display the map >> > JMapFrame.showMap(map); >> > >> > but I saw your post about using snapshot 8 to fix this issue: >> > >> > >> > http://osgeo-org.1803224.n2.nabble.com/Problem-method-JMapFrame-showMap-td6578002.html >> > >> > That made the error go away but when I go to run the project I get this >> > error in the console: >> > >> > Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad >> > version number in .class file >> > >> > I deleted all my files and started over using 8 SNAPSHOT for version >> > field >> > when I created my class to see if this would fix it, but even after >> > doing >> > that it stills gives me the same error when running the project. I was >> > hoping you could guide me in the right track. >> > >> > Thanks, >> > >> > Joel >> > >> > Here's an extract from my pom.xml if it helps diagnose: >> > >> > <groupId>org.geotools</groupId> >> > <artifactId>tutorial</artifactId> >> > <version>8-SNAPSHOT</version> >> > <packaging>jar</packaging> >> > >> > <name>tutorial</name> >> > <url>http://maven.apache.org</url> >> > >> > >> > <properties> >> > >> > <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> >> > <geotools.version>8-SNAPSHOT</geotools.version> >> > </properties> >> > >> > On Wed, Aug 3, 2011 at 11:44 PM, Michael Bedward >> > <[email protected]> >> > wrote: >> >> >> >> Good to hear you're in business now Joel. >> >> >> >> Things always work better on a mac. >> >> >> >> Michael >> >> >> >> On 4 August 2011 12:55, joel rodriguez <[email protected]> wrote: >> >> > Hi Michael & Jody, >> >> > >> >> > Thank you for all the advise and input. I had read those links in >> >> > google >> >> > and >> >> > in the other options section in the quickstart example but no matter >> >> > what I >> >> > did I could not get the errors to disappear. >> >> > >> >> > I turned to my Mac and downloaded the helios version of Eclipse this >> >> > time >> >> > and installing M2eclipse from the IDE and it install on the first try >> >> > without problems. I will continue to follow the tutorial, it looks >> >> > like >> >> > it >> >> > will go smooth now. >> >> > >> >> > Not sure if the errors came from using the Endigo version of Eclipse >> >> > on >> >> > my >> >> > windows machine. Thank you for all your assistance. >> >> > >> >> > Best Regards, >> >> > >> >> > Joel >> >> > >> >> > On Tue, Aug 2, 2011 at 4:04 AM, Jody Garnett <[email protected]> >> >> > wrote: >> >> >> >> >> >> Hi Micheal and Joel: >> >> >> I have not tried the quick start since maven started being included >> >> >> in >> >> >> the >> >> >> normal eclipse download (so some of the "extra" steps can probably >> >> >> be >> >> >> removed now). Please let me know how you go ... >> >> >> I also note that the "snapshot" repository provided by OpenGeo >> >> >> generally >> >> >> performs very well; and the advice in the quick start about >> >> >> switching >> >> >> to >> >> >> that if you have troubles is well founded. >> >> >> -- >> >> >> Jody Garnett >> >> >> >> >> >> On Tuesday, 2 August 2011 at 12:18 PM, Michael Bedward wrote: >> >> >> >> >> >> Hi Joel, >> >> >> >> >> >> Please cc your replies to the list as well so that other people can >> >> >> chip >> >> >> in. >> >> >> >> >> >> It sounds like you have Maven 2 properly installed. >> >> >> >> >> >> Regarding your IDE, I don't use Eclipse myself (NetBeans is so much >> >> >> easier :) but most of the other GeoTools developers use it so >> >> >> perhaps >> >> >> one of them can offer advice. Meanwhile, just double check that you >> >> >> have followed all the steps in the Eclipse Quickstart: >> >> >> >> >> >> >> >> >> >> >> >> http://docs.geotools.org/latest/userguide/tutorial/quickstart/eclipse.html >> >> >> >> >> >> Also, a quick Google search comes up with many possible leads >> >> >> including these two: >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> http://stackoverflow.com/questions/4297533/error-while-installing-maven-integration-for-eclipse >> >> >> >> >> >> http://judygichoya.posterous.com/maven-installation-into-eclipse-1 >> >> >> >> >> >> Regarding building from the command line, it's not unknown for Maven >> >> >> to freeze or issue download errors when internet traffic is high. >> >> >> Usually the problems resolve when you try again a few minutes later. >> >> >> However, if you are working through a proxy server or firewall you >> >> >> will need to check that it's not a permission problem. Sometimes >> >> >> there >> >> >> are problems using Maven mirror repositories as well but I'm >> >> >> guessing >> >> >> that you are working with the default pom settings (which use the >> >> >> Maven Central repo). >> >> >> >> >> >> Let us know how you go. >> >> >> >> >> >> Michael >> >> >> >> >> >> >> >> >> On 2 August 2011 10:30, joel rodriguez <[email protected]> >> >> >> wrote: >> >> >> >> >> >> Hi Michael, >> >> >> >> >> >> Thank you so much for you response. I uninstalled Maven 3 by >> >> >> deleting >> >> >> the >> >> >> directory and the m2/repository folders. Then I installed Maven >> >> >> 2.2.1 >> >> >> and >> >> >> adjusted the environment variable for 2.2.1, then I ran the mvn >> >> >> --version >> >> >> (outside of the maven directory) and it gave me the version info >> >> >> correctly. >> >> >> >> >> >> I would rather execute the quickstart tutorial from within the IDE >> >> >> but >> >> >> I >> >> >> cannot get either to that or from the command prompt to work, even >> >> >> after >> >> >> 2.2.1. I did go to the preferences and added the installation to >> >> >> call >> >> >> the >> >> >> 2.2.1 maven version instead of the default 3. but when I try to >> >> >> follow >> >> >> the >> >> >> tutorial I get errors when instaling maven intergration: >> >> >> >> >> >> "Some sites could not be found. See the error log for more detail. >> >> >> No repository found at >> >> >> >> >> >> >> >> >> >> >> >> http://repository.sonatype.org/content/sites/forge-sites/m2e/0.10.0/N/201002041057/. >> >> >> Unable to read repository at >> >> >> >> >> >> http://download.eclipse.org/releases/indigo/201106220900/content.jar. >> >> >> Read timed out >> >> >> Cannot complete the install because one or more required items could >> >> >> not >> >> >> be >> >> >> found. >> >> >> Software being installed: Maven Integration for Eclipse (Required) >> >> >> 0.12.1.20110112-1712 >> >> >> (org.maven.ide.eclipse.feature.feature.group >> >> >> 0.12.1.20110112-1712)" >> >> >> >> >> >> then I tried from the cmd and it freezes at the last line when >> >> >> downloading >> >> >> dependencies: >> >> >> >> >> >> ----from cmd-- >> >> >> Microsoft Windows [Version 6.1.7600] >> >> >> Copyright (c) 2009 Microsoft Corporation. All rights reserved. >> >> >> C:\Users\JoelRodriguez>mvn --version >> >> >> Apache Maven 2.2.1 (r801777; 2009-08-06 15:16:01-0400) >> >> >> Java version: 1.7.0 >> >> >> Java home: C:\Program Files\Java\jdk1.7.0\jre >> >> >> Default locale: en_US, platform encoding: Cp1252 >> >> >> OS name: "windows 7" version: "6.1" arch: "x86" Family: "windows" >> >> >> C:\Users\JoelRodriguez>cd\ >> >> >> C:\>cd java >> >> >> C:\java>mvn archetype:generate >> >> >> [INFO] Scanning for projects... >> >> >> [INFO] Searching repository for plugin with prefix: 'archetype'. >> >> >> [INFO] org.apache.maven.plugins: checking for updates from central >> >> >> [INFO] org.codehaus.mojo: checking for updates from central >> >> >> [INFO] artifact org.apache.maven.plugins:maven-archetype-plugin: >> >> >> checking >> >> >> for up >> >> >> dates from central >> >> >> Downloading: >> >> >> http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-archet >> >> >> ype-plugin/2.0/maven-archetype-plugin-2.0.pom >> >> >> Downloading: >> >> >> http://repo1.maven.org/maven2/org/apache/maven/archetype/maven-arch >> >> >> etype/2.0/maven-archetype-2.0.pom >> >> >> Downloading: >> >> >> http://repo1.maven.org/maven2/org/apache/maven/maven-parent/16/mave >> >> >> n-parent-16.pom >> >> >> Downloading: >> >> >> http://repo1.maven.org/maven2/org/apache/apache/7/apache-7.pom >> >> >> Downloading >> >> >> : >> >> >> http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-archet >> >> >> ype-plugin/2.0/maven-archetype-plugin-2.0.jar >> >> >> 43396/? >> >> >> >> >> >> Is there a step I am missing? Thank you again for your input, >> >> >> >> >> >> Joel >> >> >> On Sun, Jul 31, 2011 at 10:11 PM, Michael Bedward >> >> >> <[email protected]> wrote: >> >> >> >> >> >> Hello, >> >> >> >> >> >> Yes, this looks like a problem at your end rather than with >> >> >> GeoTools. >> >> >> >> >> >> Firstly, which version of Maven did you install ? At the moment >> >> >> GeoTools requires Maven 2 rather than Maven 3 (e.g. i am using >> >> >> version >> >> >> 2.2.1). To verify that it is installed correctly, from a command / >> >> >> terminal window go to some directory other than the one where Maven >> >> >> is >> >> >> installed and type "mvn --version". The Maven installation docs are >> >> >> here: >> >> >> >> >> >> http://maven.apache.org/download.html >> >> >> >> >> >> You don't mention whether you are trying to build the Quickstart >> >> >> example from the command line or from within an IDE. If the latter, >> >> >> you need to check that Maven is accessible from within the IDE and >> >> >> that the same version is being used (NetBeans comes with its own >> >> >> installation of Maven 3 bundled but you can tell it to use a local >> >> >> installation via the Preferences dialog). >> >> >> >> >> >> Michael >> >> >> >> >> >> On 1 August 2011 11:29, <[email protected]> wrote: >> >> >> >> >> >> Hi, >> >> >> >> >> >> I am a beginner in the Maven quickstart project, I was wondering if >> >> >> you >> >> >> would help me get the quickstart example to work. I have been trying >> >> >> to >> >> >> figure it out for a week with no avail. >> >> >> >> >> >> I get the missing artifact errors in my porm.xml here: >> >> >> >> >> >> <dependency> >> >> >> <groupId>org.geotools</groupId> >> >> >> <artifactId>gt-render</artifactId> >> >> >> <version>${geotools.version}</version> >> >> >> </dependency> >> >> >> <dependency> >> >> >> <groupId>org.geotools</groupId> >> >> >> <artifactId>gt-swing</artifactId> >> >> >> <version>${geotools.version}</version> >> >> >> </dependency> >> >> >> >> >> >> <dependency> >> >> >> <groupId>org.geotools</groupId> >> >> >> <artifactId>gt-shapefile</artifactId> >> >> >> <version>${geotools.version}</version> >> >> >> >> >> >> all the imports have the x (error) next to them. I think it may be >> >> >> because I could never get Maven installed from the help, install >> >> >> software >> >> >> menu. I had to download it and install it manually. >> >> >> >> >> >> Any help you may provide is greatly appreciated. >> >> >> >> >> >> Thanks >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA >> >> >> The must-attend event for mobile developers. Connect with experts. >> >> >> Get tools for creating Super Apps. See the latest technologies. >> >> >> Sessions, hands-on labs, demos & much more. 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