Either update to a newer scala version (2.10.3+) or downgrade java to java 6/7. As you have seen in the output, 2.9.2 was here long before java 8 was introduced (`Copyright 2002-2011, LAMP/EPFL`), so they don&#39;t work well together.

[This duplicate question](https://stackoverflow.com/q/18842985/298389) contains exact instructions on ubuntu&#39;s java downgrade.

remove the scala 2.9.2 using terminal 

     sudo apt-get remove scala 

download the latest scala from [scala website][1]

Installation instruction are giving on this [link][2]



  [1]: http://www.scala-lang.org/download/
  [2]: http://www.scala-lang.org/download/install.html


Downgrading JDK version to 7 solved this issue for me. 
Here is the solution:
https://askubuntu.com/questions/761127/how-do-i-install-openjdk-7-on-ubuntu-16-04-or-higher


I&#39;m creating projects with dependencies in Android Studio. I know how to link projects by adding modules.

But I realized that &#39;importing modules&#39; create a copy of the libProject inside the project.

Is there a way to prevent that ? Like an &#39;external module&#39; ? 

Since i&#39;m in charge of both project, I want to be able to push changes to the libProject Repo, without having to copy paste files between folders.

Thanks




Android Studio - Creating Modules without copying files?

I downloaded the new Eclipse Luna (ver. 4.4) and changed to Dark Theme, but the code editor is not changing. See the screen-shot:

![enter image description here][1]


  [1]: http://i.stack.imgur.com/Rc6m7.png

I tried this on MAC, Windows and Linux, always the same result.


Eclipse Luna dark theme, code editor white

When I type `scala` on the terminal to start the repl, it throws this error

    scala&gt; [init] error: error while loading AnnotatedElement, 
    class file &#39;/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
    (java/lang/reflect/AnnotatedElement.class)&#39; 
    is broken (bad constant pool tag 15 at byte 2713)

When I hit &lt;kbd&gt;enter&lt;/kbd&gt; and type `println(&quot;hello, world&quot;)`, it again throws this

    error: error while loading CharSequence, 
    class file &#39;/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
    (java/lang/CharSequence.class)&#39; is broken
    (bad constant pool tag 15 at byte 1501)


I am using `Ubuntu 14.04` and `java -version` gives

    java version &quot;1.8.0_05&quot;
    Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
    Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)

Scala repl throws error

When I type <code>scala</code> on the terminal to start the repl, it throws this error
<pre><code class="hljs language-vbnet">scala> [init] error: error while loading AnnotatedElement, 
class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
(java/lang/reflect/AnnotatedElement.class)' 
is broken (bad constant pool tag 15 at byte 2713)
</code></pre>
When I hit <kbd>enter</kbd> and type <code>println("hello, world")</code>, it again throws this
<pre><code class="hljs language-vbnet">error: error while loading CharSequence, 
class file '/usr/lib/jvm/java-8-oracle/jre/lib/rt.jar
(java/lang/CharSequence.class)' is broken
(bad constant pool tag 15 at byte 1501)
</code></pre>
I am using <code>Ubuntu 14.04</code> and <code>java -version</code> gives
<pre><code class="hljs language-scss">java version "1.8.0_05"
Java(TM) SE Runtime Environment (build 1.8.0_05-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode)
</code></pre>

I need to validate Class object against my schema in which I have provided regular expression to validate fields for auto generated JAXB classes. When I try to validate my class object I get below error:

&gt; unable to marshal type &quot;xyz&quot; as an element because it is missing an @XmlRootElement annotation

Here is the code that I use to validate my autogenerated class object: 

    jc = JAXBContext.newInstance(obj.getClass());
    source = new JAXBSource(jc, obj);
    Schema schema = schemaInjector.getSchema();
    Validator validator = schema.newValidator();
    validator.validate(source);

Is there any other way I can solve this?

unable to marshal type as an element because it is missing an @XmlRootElement annotation for auto generated classes

I&#39;m developing application using spring data jpa,hibernate,mysql,tomcat7,maven and it&#39;s create error.I&#39;m  trying to figure it out but i failed. 

error are  Cannot resolve reference to bean &#39;entityManagerFactory&#39; while setting constructor argument; No bean named &#39;entityManagerFactory&#39; is defined; Injection of autowired dependencies failed 

    org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;initDbService&#39;: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.wahid.cse.repository.RoleRepository org.wahid.cse.service.InitDbService.roleRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;roleRepository&#39;: Cannot create inner bean &#39;(inner bean)#c08f81&#39; of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property &#39;entityManager&#39;; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;(inner bean)#c08f81&#39;: Cannot resolve reference to bean &#39;entityManagerFactory&#39; while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named &#39;entityManagerFactory&#39; is defined
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
	

     Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.wahid.cse.repository.RoleRepository org.wahid.cse.service.InitDbService.roleRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;roleRepository&#39;: Cannot create inner bean &#39;(inner bean)#c08f81&#39; of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property &#39;entityManager&#39;; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;(inner bean)#c08f81&#39;: Cannot resolve reference to bean &#39;entityManagerFactory&#39; while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named &#39;entityManagerFactory&#39; is defined
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
	... 22 more

     Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;roleRepository&#39;: Cannot create inner bean &#39;(inner bean)#c08f81&#39; of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property &#39;entityManager&#39;; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name &#39;(inner bean)#c08f81&#39;: Cannot resolve reference to bean &#39;entityManagerFactory&#39; while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named &#39;entityManagerFactory&#39; is defined
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:290)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:129)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1456)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1197)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
	... 24 more

    


here is my ApplicationContext.xml file
--------------------------------------

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    &lt;beans xmlns=&quot;http://www.springframework.org/schema/beans&quot;
	xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xmlns:context=&quot;http://www.springframework.org/schema/context&quot;
	xmlns:jdbc=&quot;http://www.springframework.org/schema/jdbc&quot;
	xmlns:tx=&quot;http://www.springframework.org/schema/tx&quot;
	xmlns:jpa=&quot;http://www.springframework.org/schema/data/jpa&quot;
	xsi:schemaLocation=&quot;http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd&quot;&gt;

	&lt;context:component-scan base-package=&quot;org.wahid.cse&quot;&gt;
		&lt;context:exclude-filter type=&quot;annotation&quot;
			expression=&quot;org.springframework.stereotype.Controller&quot; /&gt;
	&lt;/context:component-scan&gt;

	&lt;bean id=&quot;dataSource&quot; class=&quot;org.apache.commons.dbcp2.BasicDataSource&quot;
		destroy-method=&quot;close&quot;&gt;
		&lt;property name=&quot;driverClassName&quot; value=&quot;com.mysql.jdbc.Driver&quot; /&gt;
		&lt;property name=&quot;url&quot; value=&quot;jdbc:mysql://localhost:3306/jba&quot; /&gt;
		&lt;property name=&quot;username&quot; value=&quot;root&quot; /&gt;
		&lt;property name=&quot;password&quot; value=&quot;&quot; /&gt;
	&lt;/bean&gt;
	&lt;bean id=&quot;emf&quot;
		class=&quot;org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean&quot;&gt;
		&lt;property name=&quot;packagesToScan&quot; value=&quot;org.wahid.cse.entity&quot; /&gt;
		&lt;property name=&quot;dataSource&quot; ref=&quot;dataSource&quot; /&gt;
		
		&lt;property name=&quot;jpaProperties&quot;&gt;
			&lt;props&gt;
				&lt;prop key=&quot;hibernate.show_sql&quot;&gt;true&lt;/prop&gt;
				&lt;prop key=&quot;hibernate.hbm2ddl.auto&quot;&gt;create&lt;/prop&gt;
				&lt;prop key=&quot;hibernate.dialect&quot;&gt;org.hibernate.dialect.MySQLDialect&lt;/prop&gt;
			&lt;/props&gt;
		&lt;/property&gt;
		
		&lt;property name=&quot;persistenceProvider&quot;&gt;
			&lt;bean class=&quot;org.hibernate.jpa.HibernatePersistenceProvider&quot;&gt;&lt;/bean&gt;
		&lt;/property&gt;
		
	&lt;/bean&gt;
	&lt;tx:annotation-driven transaction-manager=&quot;transactionManager&quot; /&gt;

	&lt;bean class=&quot;org.springframework.orm.jpa.JpaTransactionManager&quot;
		id=&quot;transactionManager&quot;&gt;
		&lt;property name=&quot;dataSource&quot; ref=&quot;dataSource&quot; /&gt;
	&lt;/bean&gt;

&lt;jpa:repositories base-package=&quot;org.wahid.cse.repository&quot;&gt;&lt;/jpa:repositories&gt;

&lt;/beans&gt;

Here is pom.xml
---------------

    &lt;project xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;
	xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd&quot;&gt;
	&lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
	&lt;groupId&gt;org.ferdous.wahid&lt;/groupId&gt;
	&lt;artifactId&gt;java-blog-aggregator&lt;/artifactId&gt;
	&lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
	&lt;packaging&gt;war&lt;/packaging&gt;


	&lt;!-- Shared version number properties --&gt;
	&lt;properties&gt;
		&lt;org.springframework.version&gt;4.0.5.RELEASE&lt;/org.springframework.version&gt;
		&lt;apache.tiles&gt;3.0.4&lt;/apache.tiles&gt;
		&lt;servlet-api-version&gt;3.1.0&lt;/servlet-api-version&gt;

	&lt;/properties&gt;

	&lt;dependencies&gt;

		&lt;dependency&gt;
			&lt;groupId&gt;org.apache.commons&lt;/groupId&gt;
			&lt;artifactId&gt;commons-dbcp2&lt;/artifactId&gt;
			&lt;version&gt;2.0.1&lt;/version&gt;
		&lt;/dependency&gt;



		&lt;dependency&gt;
			&lt;groupId&gt;mysql&lt;/groupId&gt;
			&lt;artifactId&gt;mysql-connector-java&lt;/artifactId&gt;
			&lt;version&gt;5.1.31&lt;/version&gt;
		&lt;/dependency&gt;



		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework.data&lt;/groupId&gt;
			&lt;artifactId&gt;spring-data-jpa&lt;/artifactId&gt;
			&lt;version&gt;1.6.1.RELEASE&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;dependency&gt;
			&lt;groupId&gt;org.hibernate&lt;/groupId&gt;
			&lt;artifactId&gt;hibernate-entitymanager&lt;/artifactId&gt;
			&lt;version&gt;4.3.5.Final&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;dependency&gt;
			&lt;groupId&gt;javax.servlet&lt;/groupId&gt;
			&lt;artifactId&gt;javax.servlet-api&lt;/artifactId&gt;
			&lt;version&gt;${servlet-api-version}&lt;/version&gt;
			&lt;scope&gt;provided&lt;/scope&gt;
		&lt;/dependency&gt;


		&lt;!-- &lt;dependency&gt; &lt;groupId&gt;javax.servlet.jsp&lt;/groupId&gt; &lt;artifactId&gt;javax.servlet.jsp-api&lt;/artifactId&gt; 
			&lt;version&gt;2.2.1&lt;/version&gt; &lt;/dependency&gt; --&gt;

		&lt;dependency&gt;
			&lt;groupId&gt;jstl&lt;/groupId&gt;
			&lt;artifactId&gt;jstl&lt;/artifactId&gt;
			&lt;version&gt;1.2&lt;/version&gt;
		&lt;/dependency&gt;


		&lt;dependency&gt;
			&lt;groupId&gt;org.apache.tiles&lt;/groupId&gt;
			&lt;artifactId&gt;tiles-core&lt;/artifactId&gt;
			&lt;version&gt;${apache.tiles}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;dependency&gt;
			&lt;groupId&gt;org.apache.tiles&lt;/groupId&gt;
			&lt;artifactId&gt;tiles-jsp&lt;/artifactId&gt;
			&lt;version&gt;${apache.tiles}&lt;/version&gt;
		&lt;/dependency&gt;


		&lt;dependency&gt;
			&lt;groupId&gt;org.slf4j&lt;/groupId&gt;
			&lt;artifactId&gt;slf4j-log4j12&lt;/artifactId&gt;
			&lt;version&gt;1.7.7&lt;/version&gt;
		&lt;/dependency&gt;


		&lt;!-- Core utilities used by other modules. Define this if you use Spring 
			Utility APIs (org.springframework.core.*/org.springframework.util.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-core&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Expression Language (depends on spring-core) Define this if you use 
			Spring Expression APIs (org.springframework.expression.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-expression&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Bean Factory and JavaBeans utilities (depends on spring-core) Define 
			this if you use Spring Bean APIs (org.springframework.beans.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-beans&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Aspect Oriented Programming (AOP) Framework (depends on spring-core, 
			spring-beans) Define this if you use Spring AOP APIs (org.springframework.aop.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-aop&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Application Context (depends on spring-core, spring-expression, spring-aop, 
			spring-beans) This is the central artifact for Spring&#39;s Dependency Injection 
			Container and is generally always defined --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-context&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Various Application Context utilities, including EhCache, JavaMail, 
			Quartz, and Freemarker integration Define this if you need any of these integrations --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-context-support&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Transaction Management Abstraction (depends on spring-core, spring-beans, 
			spring-aop, spring-context) Define this if you use Spring Transactions or 
			DAO Exception Hierarchy (org.springframework.transaction.*/org.springframework.dao.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-tx&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- JDBC Data Access Library (depends on spring-core, spring-beans, spring-context, 
			spring-tx) Define this if you use Spring&#39;s JdbcTemplate API (org.springframework.jdbc.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-jdbc&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Object-to-Relation-Mapping (ORM) integration with Hibernate, JPA, 
			and iBatis. (depends on spring-core, spring-beans, spring-context, spring-tx) 
			Define this if you need ORM (org.springframework.orm.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-orm&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Object-to-XML Mapping (OXM) abstraction and integration with JAXB, 
			JiBX, Castor, XStream, and XML Beans. (depends on spring-core, spring-beans, 
			spring-context) Define this if you need OXM (org.springframework.oxm.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-oxm&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Web application development utilities applicable to both Servlet and 
			Portlet Environments (depends on spring-core, spring-beans, spring-context) 
			Define this if you use Spring MVC, or wish to use Struts, JSF, or another 
			web framework with Spring (org.springframework.web.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-web&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Spring MVC for Servlet Environments (depends on spring-core, spring-beans, 
			spring-context, spring-web) Define this if you use Spring MVC with a Servlet 
			Container such as Apache Tomcat (org.springframework.web.servlet.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-webmvc&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Spring MVC for Portlet Environments (depends on spring-core, spring-beans, 
			spring-context, spring-web) Define this if you use Spring MVC with a Portlet 
			Container (org.springframework.web.portlet.*) --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-webmvc-portlet&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
		&lt;/dependency&gt;

		&lt;!-- Support for testing Spring applications with tools such as JUnit and 
			TestNG This artifact is generally always defined with a &#39;test&#39; scope for 
			the integration testing framework and unit testing stubs --&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;org.springframework&lt;/groupId&gt;
			&lt;artifactId&gt;spring-test&lt;/artifactId&gt;
			&lt;version&gt;${org.springframework.version}&lt;/version&gt;
			&lt;scope&gt;test&lt;/scope&gt;
		&lt;/dependency&gt;
	&lt;/dependencies&gt;
	&lt;build&gt;
		&lt;plugins&gt;

			&lt;plugin&gt;
				&lt;groupId&gt;org.apache.tomcat.maven&lt;/groupId&gt;
				&lt;artifactId&gt;tomcat7-maven-plugin&lt;/artifactId&gt;
				&lt;version&gt;2.2&lt;/version&gt;
			&lt;/plugin&gt;

			&lt;plugin&gt;
				&lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
				&lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
				&lt;version&gt;3.1&lt;/version&gt;
				&lt;configuration&gt;
					&lt;source&gt;1.7&lt;/source&gt;
					&lt;target&gt;1.7&lt;/target&gt;
				&lt;/configuration&gt;
			&lt;/plugin&gt;

		&lt;/plugins&gt;
	&lt;/build&gt;
&lt;/project&gt;



RoleRepository is

    import org.springframework.data.jpa.repository.JpaRepository;
    import org.wahid.cse.entity.Role;

     public interface RoleRepository extends JpaRepository&lt;Role, Integer&gt;{

     }

Spring data jpa- No bean named &#39;entityManagerFactory&#39; is defined; Injection of autowired dependencies failed

Using some batch file, I want to add the untrusted self signed certificate within Java Keystore.

**Command is**

    %JAVA_HOME%/bin/keytool -import -v -trustcacerts -alias server-alias
    -file server.cer -keystore cacerts.jks -keypass changeit -storepass changeit

After running above command, the screen promts for Trust of certificate using Y/N.

    Trust this certificate? [no]:

But I don&#39;t want to provide Y/N here.

Is there a way to complete the import using a single command or some additional import switch if any?


Add Self Signed Certificate without promting Yes/No from User

In our project we are migrating to java 8 and we are testing the new features of it.

On my project I&#39;m using Guava predicates and functions to filter and transform some collections using `Collections2.transform` and `Collections2.filter`. 

On this migration I need to change for example guava code to java 8 changes. So, the changes I&#39;m doing are the kind of:

    List&lt;Integer&gt; naturals = Lists.newArrayList(1,2,3,4,5,6,7,8,9,10,11,12,13);
		
	Function &lt;Integer, Integer&gt; duplicate = new Function&lt;Integer, Integer&gt;(){
		@Override
		public Integer apply(Integer n)
		{
			return n * 2;
		}
	};
		
	Collection result = Collections2.transform(naturals, duplicate);

To...

    List&lt;Integer&gt; result2 = naturals.stream()
		.map(n -&gt; n * 2)
		.collect(Collectors.toList());

Using guava I was very confortable debugging the code since I could debug each transformation process but my concern is how to debug for example `.map(n -&gt; n*2)`.

Using the debugger I can see some code like:

    @Hidden
    @DontInline
    /** Interpretively invoke this form on the given arguments. */
    Object interpretWithArguments(Object... argumentValues) throws Throwable {
        if (TRACE_INTERPRETER)
            return interpretWithArgumentsTracing(argumentValues);
        checkInvocationCounter();
        assert(arityCheck(argumentValues));
        Object[] values = Arrays.copyOf(argumentValues, names.length);
        for (int i = argumentValues.length; i &lt; values.length; i++) {
            values[i] = interpretName(names[i], values);
        }
        return (result &lt; 0) ? null : values[result];
    }

But it isn&#39;t as straighforward as Guava to debug the code, actually I couldn&#39;t find the `n * 2` transformation.

Is there a way to see this transformation or a way to easy debug this code?

**EDIT: I&#39;ve added answer from different comments and posted answers**

Thanks to `Holger` comment that answered my question, the approach of having lambda block allowed me to see the transformation process and debug what happened inside lambda body:

    .map(
		n -&gt; {
			Integer nr = n * 2;
			return nr;
		}
	)

Thanks to `Stuart Marks` the approach of having method references also allowed me to debug the transformation process:

    static int timesTwo(int n) {
		Integer result = n * 2;
	    return result;
	}
    ...
    List&lt;Integer&gt; result2 = naturals.stream()
		.map(Java8Test::timesTwo)
		.collect(Collectors.toList());
    ...


Thanks to `Marlon Bernardes` answer I noticed that my Eclipse doesn&#39;t show what it should and the usage of peek() helped to display results. 

How to debug stream().map(...) with lambda expressions?

I&#39;ve recently updated the android studio IDE to 0.8 to work with the new android L SDK. To start I imported a finished android project that receives no errors in the older version of android studio. In version 0.8 i lines such as

`import android.support.v4.app.Fragment;
`    
get: Support cannot be resolved causing the rest of the code to have errors. The logcat returns 101 instances of 

    Error:(8, 30) error: package android.support.v4.app does not exist

1 for each time I call the support library in an import statement.

I&#39;ve tried

 - reinstalling the IDE
 - deleting contents of idea folder
 - re installing all the SDK&#39;s - including the support libraries 
 - syncing the gradle
 - copying the support library into the libs folder manually
 - rebuilding the project 
 - as well as creating a new project to test the library 

not entirely sure what&#39;s left to do.

package android.support.v4.app does not exist ; in Android studio 0.8

In Scala, what is the difference between 

    val a = 1

and

    final val fa = 1

In Scala, difference between final val and val

I spend a lot of time going back and forth between SBT and IntelliJ, getting a file, line number, and error from SBT and navigating to it in IntelliJ. Is there a way to automate this at all? Even if it&#39;s only via IntelliJ&#39;s compiler, I&#39;d love to be able to navigate to the next error project-wide.

Go to next compiler error across project in IntelliJ

What is a difference between tell and forward, in case I will send the same message:

    case msg: Message =&gt;
      otherActor tell (msg,sender)

 and

    case msg: Message =&gt;
      otherActor forward msg
     

Difference between forward and tell in akka actors

I am not sure whether mergestrategy or exclude jars is the best option here. Any help with how do I proceed further with this error will be great!
    
    [sameert@pzxdcc0151 approxstrmatch]$ sbt assembly
    [info] Loading project definition from /apps/sameert/software/approxstrmatch/project
    [info] Set current project to approxstrmatch (in build file:/apps/sameert/software/approxstrmatch/)
    [info] Including from cache: scala-library.jar
    [info] Checking every *.class/*.jar file&#39;s SHA-1.
    [info] Merging files...
    [info] Including from cache: curator-client-2.4.0.jar
    [info] Including from cache: secondstring-20140729.jar
    [info] Including from cache: slf4j-api-1.7.5.jar
    [info] Including from cache: jsr305-1.3.9.jar
    [info] Including from cache: jul-to-slf4j-1.7.5.jar
    [info] Including from cache: jcl-over-slf4j-1.7.5.jar
    [info] Including from cache: commons-digester-1.8.jar
    [info] Including from cache: compress-lzf-1.0.0.jar
    [info] Including from cache: commons-beanutils-1.7.0.jar
    [info] Including from cache: zookeeper-3.4.5.jar
    [info] Including from cache: slf4j-log4j12-1.7.5.jar
    [info] Including from cache: commons-beanutils-core-1.8.0.jar
    [info] Including from cache: commons-net-2.2.jar
    [info] Including from cache: commons-el-1.0.jar
    [info] Including from cache: log4j-1.2.17.jar
    [info] Including from cache: scala-library.jar
    [info] Including from cache: jline-0.9.94.jar
    [info] Including from cache: snappy-java-1.0.5.jar
    [info] Including from cache: hsqldb-1.8.0.10.jar
    [info] Including from cache: chill_2.10-0.3.6.jar
    [info] Including from cache: oro-2.0.8.jar
    [info] Including from cache: chill-java-0.3.6.jar
    [info] Including from cache: kryo-2.21.jar
    [info] Including from cache: reflectasm-1.07-shaded.jar
    [info] Including from cache: minlog-1.2.jar
    [info] Including from cache: guava-14.0.1.jar
    [info] Including from cache: jetty-plus-8.1.14.v20131031.jar
    [info] Including from cache: javax.transaction-1.1.1.v201105210645.jar
    [info] Including from cache: jackson-mapper-asl-1.8.8.jar
    [info] Including from cache: jackson-core-asl-1.8.8.jar
    [info] Including from cache: jetty-webapp-8.1.14.v20131031.jar
    [info] Including from cache: curator-recipes-2.4.0.jar
    [info] Including from cache: jetty-xml-8.1.14.v20131031.jar
    [info] Including from cache: spark-core_2.10-1.0.0.jar
    [info] Including from cache: objenesis-1.2.jar
    [info] Including from cache: curator-framework-2.4.0.jar
    [info] Including from cache: hadoop-client-1.0.4.jar
    [info] Including from cache: jetty-util-8.1.14.v20131031.jar
    [info] Including from cache: scalap-2.10.4.jar
    [info] Including from cache: akka-remote_2.10-2.2.3-shaded-protobuf.jar
    [info] Including from cache: jetty-servlet-8.1.14.v20131031.jar
    [info] Including from cache: jetty-security-8.1.14.v20131031.jar
    [info] Including from cache: jetty-server-8.1.14.v20131031.jar
    [info] Including from cache: javax.servlet-3.0.0.v201112011016.jar
    [info] Including from cache: jetty-continuation-8.1.14.v20131031.jar
    [info] Including from cache: jetty-http-8.1.14.v20131031.jar
    [info] Including from cache: jetty-io-8.1.14.v20131031.jar
    [info] Including from cache: hadoop-core-1.0.4.jar
    [info] Including from cache: jetty-jndi-8.1.14.v20131031.jar
    [info] Including from cache: xmlenc-0.52.jar
    [info] Including from cache: commons-codec-1.4.jar
    [info] Including from cache: javax.mail.glassfish-1.4.1.v201005082020.jar
    [info] Including from cache: javax.activation-1.1.0.v201105071233.jar
    [info] Including from cache: commons-math-2.1.jar
    [info] Including from cache: commons-lang3-3.3.2.jar
    [info] Including from cache: commons-configuration-1.6.jar
    [info] Including from cache: metrics-core-3.0.0.jar
    [info] Including from cache: metrics-jvm-3.0.0.jar
    [info] Including from cache: metrics-json-3.0.0.jar
    [info] Including from cache: commons-collections-3.2.1.jar
    [info] Including from cache: metrics-graphite-3.0.0.jar
    [info] Including from cache: commons-lang-2.4.jar
    [info] Including from cache: akka-actor_2.10-2.2.3-shaded-protobuf.jar
    [info] Including from cache: config-1.0.2.jar
    [info] Including from cache: tachyon-0.4.1-thrift.jar
    [info] Including from cache: netty-3.6.6.Final.jar
    [info] Including from cache: protobuf-java-2.4.1-shaded.jar
    [info] Including from cache: uncommons-maths-1.2.2a.jar
    [info] Including from cache: akka-slf4j_2.10-2.2.3-shaded-protobuf.jar
    [info] Including from cache: json4s-jackson_2.10-3.2.6.jar
    [info] Including from cache: json4s-core_2.10-3.2.6.jar
    [info] Including from cache: ant-1.9.0.jar
    [info] Including from cache: json4s-ast_2.10-3.2.6.jar
    [info] Including from cache: ant-launcher-1.9.0.jar
    [info] Including from cache: paranamer-2.6.jar
    [info] Including from cache: commons-io-2.4.jar
    [info] Including from cache: jackson-core-2.3.0.jar
    [info] Including from cache: pyrolite-2.0.1.jar
    [info] Including from cache: colt-1.2.0.jar
    [info] Including from cache: concurrent-1.3.4.jar
    [info] Including from cache: py4j-0.8.1.jar
    [info] Including from cache: mesos-0.18.1-shaded-protobuf.jar
    [info] Including from cache: scala-compiler.jar
    [info] Including from cache: jets3t-0.7.1.jar
    [info] Including from cache: commons-httpclient-3.1.jar
    [info] Including from cache: netty-all-4.0.17.Final.jar
    [info] Including from cache: stream-2.5.1.jar
    [info] Including from cache: scala-reflect.jar
    [info] Including from cache: jackson-databind-2.3.0.jar
    [info] Including from cache: jackson-annotations-2.3.0.jar
    [warn] Merging &#39;META-INF/MANIFEST.MF&#39; with strategy &#39;discard&#39;
    [warn] Strategy &#39;discard&#39; was applied to a file
    [info] Checking every *.class/*.jar file&#39;s SHA-1.
    [info] Merging files...
    [warn] Merging &#39;META-INF/DEPENDENCIES&#39; with strategy &#39;discard&#39;
    [info] Assembly up to date: /apps/sameert/software/approxstrmatch/app/target/scala-2.10/app-assembly-0.1-SNAPSHOT.jar

// Here is where I start seeing errors:

    java.lang.RuntimeException: deduplicate: different file contents found in the following:
    /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.transaction/orbits/javax.transaction-1.1.1.v201105210645.jar:META-INF/ECLIPSEF.RSA
    /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.servlet/orbits/javax.servlet-3.0.0.v201112011016.jar:META-INF/ECLIPSEF.RSA
    /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.mail.glassfish/orbits/javax.mail.glassfish-1.4.1.v201005082020.jar:META-INF/ECLIPSEF.RSA
    /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.activation/orbits/javax.activation-1.1.0.v201105071233.jar:META-INF/ECLIPSEF.RSA
    	at sbtassembly.Plugin$Assembly$.sbtassembly$Plugin$Assembly$$applyStrategy$1(Plugin.scala:253)
    	at sbtassembly.Plugin$Assembly$$anonfun$15.apply(Plugin.scala:270)
    	at sbtassembly.Plugin$Assembly$$anonfun$15.apply(Plugin.scala:267)
    	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:251)
    	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:251)
    	at scala.collection.Iterator$class.foreach(Iterator.scala:727)
    	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
    	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
    	at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
    	at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:251)
    	at scala.collection.AbstractTraversable.flatMap(Traversable.scala:105)
    	at sbtassembly.Plugin$Assembly$.applyStrategies(Plugin.scala:272)
    	at sbtassembly.Plugin$Assembly$.x$4$lzycompute$1(Plugin.scala:172)
    	at sbtassembly.Plugin$Assembly$.x$4$1(Plugin.scala:170)
    	at sbtassembly.Plugin$Assembly$.stratMapping$lzycompute$1(Plugin.scala:170)
    	at sbtassembly.Plugin$Assembly$.stratMapping$1(Plugin.scala:170)
    	at sbtassembly.Plugin$Assembly$.inputs$lzycompute$1(Plugin.scala:214)
    	at sbtassembly.Plugin$Assembly$.inputs$1(Plugin.scala:204)
    	at sbtassembly.Plugin$Assembly$.apply(Plugin.scala:230)
    	at sbtassembly.Plugin$Assembly$$anonfun$assemblyTask$1.apply(Plugin.scala:373)
    	at sbtassembly.Plugin$Assembly$$anonfun$assemblyTask$1.apply(Plugin.scala:370)
    	at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
    	at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:42)
    	at sbt.std.Transform$$anon$4.work(System.scala:64)
    	at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
    	at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
    	at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:18)
    	at sbt.Execute.work(Execute.scala:244)
    	at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
    	at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
    	at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:160)
    	at sbt.CompletionService$$anon$2.call(CompletionService.scala:30)
    	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    	at java.lang.Thread.run(Thread.java:744)

// Here are the error messages.

    [error] (approxstrmatch/*:assembly) deduplicate: different file contents found in the following:
    [error] /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.transaction/orbits/javax.transaction-1.1.1.v201105210645.jar:META-INF/ECLIPSEF.RSA
    [error] /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.servlet/orbits/javax.servlet-3.0.0.v201112011016.jar:META-INF/ECLIPSEF.RSA
    [error] /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.mail.glassfish/orbits/javax.mail.glassfish-1.4.1.v201005082020.jar:META-INF/ECLIPSEF.RSA
    [error] /home/sameert/.ivy2/cache/org.eclipse.jetty.orbit/javax.activation/orbits/javax.activation-1.1.0.v201105071233.jar:META-INF/ECLIPSEF.RSA
    [error] Total time: 4 s, completed Aug 5, 2014 9:53:06 AM

sbt-assembly: deduplication found error

Why do Scala and frameworks like Spark and Scalding have both `reduce` and `foldLeft`? So then what&#39;s the difference between `reduce` and `fold`?

Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala APIs)?

I would like to evaluate

    var foo = &quot;foo&quot;;
    console.log(foo);

as a block, instead of evaluating line by line 

    var foo = &quot;foo&quot;;
    undefined
    console.log(foo);
    foo
    undefined

Is there a simple way to move the prompt to the next line?


How to write multiple lines of code in Node REPL

I need to debug CSS for some site running on the device under Android (in the common REPL mode). As I know it is possible to connect the device with the desktop via USB cable to do that. But the problem is I have no such a device (with Android). I have the Android emulator (Andy) but it seems that chrome installed on it has no dev tools at all. 
So is it possible to solve the problem without physical Android device?

UPD==================

Once again:
The point is **I have no any Android device**. I have an emulator for it only (Andy Android emulator).

Using Google Chrome Dev tools on Android (emulator)

I want to quit swift repl gracefully and not use &lt;kbd&gt;ctrl&lt;/kbd&gt;-&lt;kbd&gt;d&lt;/kbd&gt; to exit it. 

For eg. python repl can be exited by typing `exit()`. Is there a similar way of quitting swift repl?

Content Type	Original Author	Original Content on Stackoverflow
Question	ajay	View Question on Stackoverflow
Solution 1 - Java	om-nom-nom	View Answer on Stackoverflow
Solution 2 - Java	Hafiz Shehbaz Ali	View Answer on Stackoverflow
Solution 3 - Java	Rakesh Sharma	View Answer on Stackoverflow
Solution 4 - Java	Sabi	View Answer on Stackoverflow

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