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Spring NoSuchMethod Error on Apache Tomcat 8.5

I'm trying to set up a Java Web Application to run on my local Tomcat server. I've made progress, but my current issue is that when I try to deploy to the server, I get the following error.
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/SiteAdmin-servlet.xml]; nested exception is java.lang.NoSuchMethodError: org.springframework.beans.factory.xml.XmlReaderContext.getResourceLoader()Lorg/springframework/core/io/ResourceLoader;
After some time with Google, I came to understand that this a dependency issue of some sort. Here are the Spring dependencies I'm currently using
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-js</artifactId>
<version>2.0.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-webflow</artifactId>
<version>2.0.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.0.3.RELEASE</version>
<!--<version>4.3.2.RELEASE</version>-->
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>2.5.5</version>
<!--<version>4.3.2.RELEASE</version>-->
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springmodules</groupId>
<artifactId>spring-modules-validation</artifactId>
<version>0.8a</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>2.5.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>2.5.5</version>
</dependency>
As can be seen above, I tried updating the spring-core and the spring-beans dependencies to later versions, but the error persists. I want to avoid changing the dependencies too much, since when I tried updating all of them it caused errors elsewhere in my code. Any help in how to approach this issue would be appreciated.
If it helps, I'm using Netbeans and Java 6. I want to avoid changing that Java version if I can.

Fixed the problem guys. There was an old spring-core dependency jar in the classpath. I didn't notice it at first because it was only called spring.jar. Got rid of it, error's gone.

javax.enterprise.inject.Vetoed Open web beans, which jar?

I'm wanting to try out Open Web Beans 1.6.2, but the jars it lists on it's website for adding CDI support to a Java SE application
openwebbeans-spi.jar
openwebbeans-impl.jar
geronimo-jcdi_1.0_spec.jar
geronimo-atinject_1.0_spec.jar
geronimo-interceptor_1.2_spec.jar
geronimo-annotation_1.2_spec.jar
Don't seem to contain the javax.enterprise.inject.Vetoed annotation, I've had to add cdi-api 1.2 as a dependency to resolve the issue, but I'm not sure if this is correct as all other CDI dependencies were resolved by the above? Here are the dependencies I have in my pom, is this correct?
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-impl</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.openwebbeans</groupId>
<artifactId>openwebbeans-spi</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jcdi_1.0_spec</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-atinject_1.0_spec</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-interceptor_1.2_spec</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-annotation_1.2_spec</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>1.2</version>
</dependency>
This link seems to suggest support for #Vetoed was added in Open Web Beans 1.5.0

Please upgrade geronimo-jcdi_1.0_spec to jcdi_1.1 version
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jcdi_1.1_spec</artifactId>
<version>1.0</version>
</dependency>
Although your problem is weird, because you have also following entry:
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>1.2</version>
</dependency
which also contains #Vetoed and thus should be enough. Does maven ignore it somehow?

Hibernate Issue with Spring Maven & Tomcat

I have been scratching my head for a few hours and can't seem to solve this issue. I have been following several tutorials on getting started with Maven & Hibernate, following this and this. Each time I deploy on Virgo Tomcat, I get the following error spitting out
An Import-Package could not be resolved. Caused by missing constraint in bundle <com.stuart.contextmanagement_0.1.0>
constraint: <Import-Package: javassist.util.proxy; version="[3.18.0,4.0.0)">
So I added Java Assist as a dependency in my pom, then is spat out
An Import-Package could not be resolved. Caused by missing constraint in bundle
com.stuart.contextmanagement_0.1.0>
constraint: <Import-Package: com.sun.jdi.request; version="0.0.0">
I can't find the above package when searching through repo's. I have also experienced a similar issue before, and every time I add a new dependency which it can't find, it can't find another one and so on...
A snippet of my pom is as follows;
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.3.5.Final</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
Thanks for your help.

hm, have you tried also the jboss javassist?

I ended up finding a solution. For any one who's interested, I ended up creating another maven project and exporting several other dependencies than I could see any any documentation or tutorial. Below is the snippet of my final pom.xml.
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>org.springframework.spring-library</artifactId>
<type>libd</type>
<version>3.0.5.RELEASE</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.javassist</groupId>
<artifactId>com.springsource.javassist</artifactId>
<version>3.15.0.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>com.springsource.javax.persistence</artifactId>
<version>2.0.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>com.springsource.org.apache.commons.dbcp</artifactId>
<version>1.2.2.osgi</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>com.springsource.org.apache.derby</artifactId>
<version>10.5.1000001.764942</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>com.springsource.org.hibernate</artifactId>
<version>3.3.2.GA</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>com.springsource.org.hibernate.annotations</artifactId>
<version>3.4.0.GA-A</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>com.springsource.org.hibernate.annotations.common</artifactId>
<version>3.3.0.ga</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.dom4j</groupId>
<artifactId>com.springsource.org.dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.9</version>
<scope>compile</scope>
</dependency>
</dependencies>

NoSuchMethodError: JsonFactory.fromInputStream

I am trying to get a clean code sample of Google API OAuth2 authentication.
My code is mostly based on the explanation at https://code.google.com/p/google-api-java-client/wiki/OAuth2
I deviate from this tutorial because I want my libraries be managed by Maven and because I want to create a project without Google Apps Engine dependencies.
Each time I try to the run the project on my Glassfish server, I get the following error, probably indicating a dependency conflict.
java.lang.NoSuchMethodError: com.google.api.client.json.JsonFactory.fromInputStream(Ljava/io/InputStream;Ljava/lang/Class;)Ljava/lang/Object;
The relevant piece of my pom.xml:
<dependencies>
<dependency>
<groupId>com.google.api-client</groupId>
<artifactId>google-api-client</artifactId>
<version>1.14.1-beta</version>
</dependency>
<dependency>
<groupId>com.google.http-client</groupId>
<artifactId>google-http-client</artifactId>
<version>1.14.1-beta</version>
</dependency>
<dependency>
<groupId>com.google.api-jackson2</groupId>
<artifactId>google-api-jackson2</artifactId>
<version>1.14.1-beta</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-calendar</artifactId>
<version>v3-rev34-1.14.1-beta</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client</artifactId>
<version>1.14.1-beta</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.1.3</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client-servlet</artifactId>
<version>1.14.1-beta</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.CR2</version>
</dependency>
<dependency>
<groupId>javax.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>1.1-PRD</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
</dependency>
</dependencies>
Please help me find the root cause of this error, because the used dependencies seem just fine to me and there's no similar problem case I could find.

The correct dependency for jackson2 is:
<dependency>
<groupId>com.google.http-client</groupId>
<artifactId>google-http-client-jackson2</artifactId>
<version>1.14.1-beta</version>
</dependency>
Once I changed that, the project built successfully, and I was able to call the method in question just fine.
There could be something else on the classpath that's interfering. I suggest you run the program with -verbose: class (see here for a more detailed explanation), which will show any conflicts.

How to develop Tomcat applications with SpringSource Tool Suit?

I want objects of my Tomcat web application to be controlled by Maven's pom and Spring's IoC, including session scoped beans. My application consists of several objects which are accessed from jsp files.
What is the best way to design such an application with suit tools? Should I use Spring MVC Project template though I don't want to implement MVC tiers? Or there is another template somewhere on the Net?

The way I do using STS is like this. Go to
File --> New --> Project --> Maven Project--> Create a simple project (skip archtype) --> Enter the Artifact details.
For Example: Group Id: com.examples
Artifact Id: MyProject
Click on Finish.
Now Right Click the project in Project Explorer and the Select Spring Tools--> Add Spring Project Nature.
I usually use simple project because I like using the same pom.xml across projects and add/remove dependencies when needed.
Sample pom.xml to get going with Spring
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.1.0.RELEASE</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>2.2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>