As per https://stackoverflow.com/questions/5312350/where-is-maven-installed-on-ubuntu it will first create your settings.xml on /usr/share/maven2/, then you can copy to your home folder as  jens mentioned

&gt; $ cp /usr/share/maven3/conf/settings.xml   ~/.m2/settings.xml



You can find your maven files here:

    cd ~/.m2

Probably you need to [copy settings.xml][1] in your `.m2` folder:

    cp /usr/local/bin/apache-maven-2.2.1/conf/settings.xml .m2/

If no .m2 folder exists:
   
    mkdir -p ~/.m2


  [1]: https://cwiki.apache.org/WICKET//setup-maven.html#SetupMaven-Configuration

.m2 directory on linux box usually would be `$HOME/.m2`

you could get the $HOME :

    echo $HOME

or simply:

    cd &lt;enter&gt;

to go to your home directory.

other information from maven site:
http://maven.apache.org/download.html#Installation

Quoted from http://maven.apache.org/settings.html:


&gt; There are two locations where a settings.xml file may live:
&gt; 
&gt; The Maven install: $M2_HOME/conf/settings.xml 
&gt;
&gt; A user&#39;s install: ${user.home}/.m2/settings.xml

So, usually for a specific user you edit 

    /home/*username*/.m2/settings.xml


To set environment for all local users, you might think about changing the first path.






How can I reverse the order in which I perform a for loop for a defined array


To iterate through the array I am doing this:

    $ export MYARRAY=(&quot;one&quot; &quot;two&quot; &quot;three&quot; &quot;four&quot;)
    $ for i in ${MYARRAY[@]}; do echo $i;done
    one
    two
    three
    four


Is there a function where I can reverse the order of the array?

One thought I had is to generate a sequence of inverted indexes and call the elements by using this reversed index but maybe there is a quicker alternative, or at least easier to read.



How to reverse array in bash onliner FOR loop?

In C we write code like

    #ifdef DEBUG
    printf(&quot;Some debug log... This could probably be achieved by python logging.Logger&quot;);
    /* Do some sanity check code */
    assert someCondition
    /* More complex sanitycheck */
    while(list-&gt;next){
    assert fooCheck(list)
    }
    
    #endif

Is there a way to do this in python?

Edit: I got my answer, and more :)
Paolo, Steven Rumbalski and J Sebastian gave me the information I was looking for. Thanks das for the detailed answer, although I&#39;ll probably not use a preprocessor right now.

J Sebastian, whose comment got deleted because the answer in which he posted his comment, deleted his answer I think.
He said I could use the isEnabledFor() method in Logger to feed a conditional.

Thanks everyone for your inputs. This is my first question. I wish I could accept paolo, or j sebastian&#39;s answers. But since those were offered as comments, I&#39;ll accept das&#39; answer.


I will probably use either http://nestedinfiniteloops.wordpress.com/2012/01/15/if-debug-python-flavoured/ or Logger.isEnabledFor()

Python equivalent for #ifdef DEBUG

In the windows environment you will have .m2 folder in C:\Users\user_name location and you will copy your settings.xml file to it in order to setup your proxy settings and nexus repository locations and etc.

So What I have to done on Ubuntu environment to get similar setup after installing maven on it. 

.m2 , settings.xml in Ubuntu

<p>In the windows environment you will have .m2 folder in C:\Users\user_name location and you will copy your settings.xml file to it in order to setup your proxy settings and nexus repository locations and etc.</p>
<p>So What I have to done on Ubuntu environment to get similar setup after installing maven on it.</p>


I&#39;ve got a web application where I have the typical problem that it requires different configuration files for different environments. Some configuration is placed in the application server as JNDI datasources, however some configuration stays in property files.

Therefore I want to use the Spring profiles feature.

My problem is that I don&#39;t get the test case running.

context.xml:

    &lt;context:property-placeholder 
      location=&quot;classpath:META-INF/spring/config_${spring.profiles.active}.properties&quot;/&gt;

Test:
   
    @RunWith(SpringJUnit4ClassRunner.class)
    @TestExecutionListeners({
		TestPreperationExecutionListener.class
		})
    @Transactional
    @ActiveProfiles(profiles = &quot;localtest&quot;)
    @ContextConfiguration(locations = {
		&quot;classpath:context.xml&quot; })
    public class TestContext {

	  @Test
	  public void testContext(){

	  }
    }

The problem seems to be that the variable for loading the profile isn&#39;t resolved:

    Caused by: java.io.FileNotFoundException: class path resource [META-INF/spring/config_${spring.profiles.active}.properties] cannot be opened because it does not exist
	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:157)
	at org.springframework.core.io.support.PropertiesLoaderSupport.loadProperties(PropertiesLoaderSupport.java:181)
	at org.springframework.core.io.support.PropertiesLoaderSupport.mergeProperties(PropertiesLoaderSupport.java:161)
	at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.postProcessBeanFactory(PropertySourcesPlaceholderConfigurer.java:138)
	... 31 more

The current profile should be set with the `@ActiveProfile` annotation. As it&#39;s a test case I won&#39;t be able to use the `web.xml`. If possible I&#39;d like to avoid runtime options as well. The test should run as is (if possible).

How can I properly activate the profile? Is it possible to set the profile with a context.xml? Could I declare the variable in a test-context.xml that is actually calling the normal context?

Spring profiles and testing

I have a class as below:

    public class A {
        public A(String test) {
            bla bla bla
        }

        public String check() {
            bla bla bla
        }
    }

The logic in the constructor `A(String test)` and `check()` are the things I am trying to mock. I want any calls like: `new A($$$any string$$$).check()` returns a dummy string `&quot;test&quot;`.

I tried:

     A a = mock(A.class); 
     when(a.check()).thenReturn(&quot;test&quot;);
     
     String test = a.check(); // to this point, everything works. test shows as &quot;tests&quot;

     whenNew(A.class).withArguments(Matchers.anyString()).thenReturn(rk);
     // also tried:
     //whenNew(A.class).withParameterTypes(String.class).withArguments(Matchers.anyString()).thenReturn(rk);

     new A(&quot;random string&quot;).check();  // this doesn&#39;t work

But it doesn&#39;t seem to be working. `new A($$$any string$$$).check()` is still going through the constructor logic instead of fetch the mocked object of `A`.


Mock a constructor with parameter

I have a JPA-persisted object model that contains a many-to-one relationship: an `Account` has many `Transactions`. A `Transaction` has one `Account`.

Here&#39;s a snippet of the code:

    @Entity
    public class Transaction {
        @Id
        @GeneratedValue(strategy = GenerationType.AUTO)
        private Long id;
    
        @ManyToOne(cascade = {CascadeType.ALL},fetch= FetchType.EAGER)
        private Account fromAccount;
    ....

    @Entity
    public class Account {
        @Id
        @GeneratedValue(strategy = GenerationType.AUTO)
        private Long id;
        @OneToMany(cascade = {CascadeType.ALL},fetch= FetchType.EAGER, mappedBy = &quot;fromAccount&quot;)
        private Set&lt;Transaction&gt; transactions;


I am able to create an `Account` object, add transactions to it, and persist the `Account` object correctly. But, when I create a transaction, *using an existing already persisted Account*,  and persisting the *the Transaction*, I get an exception:

&gt;Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: com.paulsanwald.Account
    	at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:141) 

So, I am able to persist an `Account` that contains transactions, but not a Transaction that has an `Account`. I thought this was because the `Account` might not be attached, but this code still gives me the same exception:

    if (account.getId()!=null) {
        account = entityManager.merge(account);
    }
    Transaction transaction = new Transaction(account,&quot;other stuff&quot;);
     // the below fails with a &quot;detached entity&quot; message. why?
    entityManager.persist(transaction);

How can I correctly save a `Transaction`, associated with an already persisted `Account` object?

PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate

I&#39;m writing a program that utilizes a binary search tree to store data. In a previous program (unrelated), I was able to implement a linked list using an [implementation](http://docs.oracle.com/javase/6/docs/api/java/util/LinkedList.html) provided with Java SE6. Is there something similar for a binary search tree, or will I need to &quot;start from scratch&quot;?

Binary Search Tree - Java Implementation

I was looking at the new APIs introduced in [Android 4.2][1].
While looking at the [`UserManager`][2] class I came across the following method:

&gt;     public boolean isUserAGoat()
&gt; 
&gt; Used to determine whether the user making this call is subject to teleportations.
&gt; 
&gt; Returns whether the user making this call is a goat.

How and when should this be used?


  [1]: http://en.wikipedia.org/wiki/Android_version_history#Android_4.1.2F4.2_Jelly_Bean
  [2]: http://developer.android.com/reference/android/os/UserManager.html

Proper use cases for Android UserManager.isUserAGoat()?

I have an archive, which is archived by someone else, and I want to automatically, after I download it, to change a branch of the file system within the extracted files to gain read access. (I can&#39;t change how archive is created).

I&#39;ve looked into this thread: https://stackoverflow.com/questions/6937885/chmod-how-to-recursively-add-execute-permissions-only-to-files-which-already-ha as into some others, but no joy.

The directories originally come with multiple but all wrong flags, they may appear as:

    drwx------
    d---r-x---
    drwxrwxr-x
    dr--r-xr--

Those are just the few I&#39;ve discovered so far, but could be more.

`find` errors when tries to look into a directory with no `x` permission, and so doesn&#39;t pass it to `chmod`. What I&#39;ve been doing so far, is manually change permissions on the parent directory, then go into the child directories and do the same for them and so on. But this is a lot of hand labour. Isn&#39;t there some way to do this automatically?

I.e. how I am doing it now:

do:

    $ chmod -R +x
    $ chmod -R +r

until I get no errors, then

    $ find -type f -exec chmod -x {} +

But there must be a better way.

Chmod recursively

I want to remove some *n* lines from the end of a file. Can this be done using sed?

For example, to remove lines from 2 to 4, I can use

    $ sed &#39;2,4d&#39; file

But I don&#39;t know the line numbers.  I can delete the last line using 

    $sed $d file

but I want to know the way to remove *n* lines from the end. Please let me know how to do that using sed or some other method.

How to use sed to remove the last n lines of a file

I have first executed the command: `export LD_LIBRARY_PATH=/usr/local/lib`

Then I have opened `.bash_profile` file: `vi ~/.bash_profile`.
In this file, I put:

    LD_LIBRARY_PATH=/usr/local/lib
    export LD_LIBRARY_PATH

Then if the terminal is closed and restarted, typing `echo $LD_LIBRARY_PATH` displays no result.

How to set the path permanently?

How to set the environmental variable LD_LIBRARY_PATH in linux

I am a newbie at shell scripting, and am confused about how to use `sed` or any other tools to replace the first line in my text file by a string. Here are the text file contents:

&lt;pre&gt;
/home/snehil/Desktop/j1/movie.MOV
&quot;spome other text lines&#39;
&lt;/pre&gt;

I want to replace the first line (movie file path) with just `movie.MOV` (could be a variable in the shell script) 

Please guide me how to do this. I came across `sed` in some posts, do I need to use `sed` here?


Replace the first line in a text file by a string

If my Unix machine is set to IST timezone, how can I get the current GMT time?

How do I get GMT time in Unix?

I would like to define a checkstyle run in a pom file, and have it run on all the submodules _except_ certain specified ones. 

In other words, I need some sort of `&lt;excludes&gt;` (which exists but applies to filenames) but which targets modules. Any idea anyone?


Preventing checkstyle from running in a specific maven submodule

What is the difference between the following dependencies?

&lt;!-- language: xml --&gt;

    &lt;dependency&gt;
        &lt;groupId&gt;org.springframework&lt;/groupId&gt;
        &lt;artifactId&gt;spring-webmvc&lt;/artifactId&gt;
        &lt;version&gt;3.1.2.RELEASE&lt;/version&gt;
    &lt;/dependency&gt;
            
vs

    &lt;dependency&gt;
        &lt;groupId&gt;org.springframework&lt;/groupId&gt;
        &lt;artifactId&gt;spring-web&lt;/artifactId&gt;
        &lt;version&gt;3.1.2.RELEASE&lt;/version&gt;
    &lt;/dependency&gt;

If I include `spring-webmvc` alone then `spring-web` is implicitly added. 

When should we use `spring-web` alone?

Maven dependency spring-web vs spring-webmvc

We have a workflow requirement that essentially mean that we need to have the artifact version of a module externally defined from the current branch in git.

I.e. if we are on the master branch in git, I need `&lt;version&gt;master-...&lt;/version&gt;` and if we are on the bugfixX branch, I need `&lt;version&gt;bugfixX-....&lt;/version&gt;` for the generated artifact for this pom.xml.

I have previously found that https://github.com/koraktor/mavanagaiata can provide the SHA-1 hash as a property and it appears from the documentation that it can also provide the branch, so perhaps if it could be run early enough in the process we could set the property and just put `&lt;version&gt;${our.version}&lt;/version&gt;` in the pom.  If this is possible, I would very much like to see a working pom.xml (and reward a 500 point bounty for it too).

If not, I guess we are into either preprocessing or &quot;git checkout&quot; do extra magic with some of the hooks (which I have not yet tried, working code would be great too).

We have a top level pom, which can be run to generate a property file in &quot;..&quot; before building the modules where this functionality I&#39;m asking about needs to go.

Any suggestions on how to solve this?  


Deriving maven artifact version from git branch

I found the maven-shade-plugin being used in someone&#39;s pom.xml. I&#39;ve never used maven-shade-plugin before (and I&#39;m a Maven n00b) so I tried to understand the reason for using this and what it does. 

I looked at the [Maven docs][1], however I can&#39;t understand this statement:

&gt; This plugin provides the capability to package the artifact in an uber-jar, including its dependencies and to shade - i.e. rename - the packages of some of the dependencies.

The documentation on the page doesn&#39;t seem very newbie-friendly.

What is an &quot;uber jar?&quot; Why would someone want to make one? What&#39;s the point of renaming the packages of the dependencies? I tried to go through the examples on the maven-shade-plugin apache page such as &quot;Selecting contents for Uber Jar,&quot; but I still can&#39;t understand what is being accomplished with &quot;shading.&quot;

Any pointers to illustrative examples/use-cases (with an explanation of why shading was required in this case - what problem is it solving) would be appreciated. Lastly, when should I use the maven-shade-plugin?

[1]: http://maven.apache.org/plugins/maven-shade-plugin

What is the maven-shade-plugin used for, and why would you want to relocate Java packages?

I want to change maven java home which is open jdk with sun jdk. How can I do it ?

    root@ak-EasyNote-TM98:~# mvn -version
    Apache Maven 3.0.4
    Maven home: /usr/share/maven
    Java version: 1.6.0_24, vendor: Sun Microsystems Inc.
    Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
    Default locale: tr_TR, platform encoding: UTF-8
    OS name: &quot;linux&quot;, version: &quot;3.2.0-34-generic&quot;, arch: &quot;amd64&quot;, family: &quot;unix&quot;

    Edit:
So sorry. I forgot to write the below code :

    root@ak-EasyNote-TM98:~$ java -version
    java version &quot;1.7.0_07&quot;
    Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
    Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)

My java home default path is sun jdk already. But maven java home has pointed openjdk. I want to fix it only for maven.





How to change maven java home

Is it possible in Linux command line to have a command repeat every *n* seconds?

Say, I have an import running, and I am doing

    ls -l

to check if the file size is increasing. I would like to have a command to have this repeat automatically.

Repeat command automatically in Linux

I used the following command to convert and merge all the `jpg` files in a directory to a single pdf file.

    convert *.jpg file.pdf

The files in the directory are numbered from `1.jpg` to `123.jpg`. The convertion went fine but after converting the pages were all mixed up. I wanted the pdf to have pages from `1.jpg` to `123.jpg` in the same order as they are named. I tried with the following command as well:

    cd 1 
    FILES=$( find . -type f -name &quot;*jpg&quot; | cut -d/ -f 2)
    mkdir temp &amp;&amp; cd temp 
    for file in $FILES; do 
        BASE=$(echo $file | sed &#39;s/.jpg//g&#39;);
        convert ../$BASE.jpg $BASE.pdf; 
        done &amp;&amp; 
    pdftk *pdf cat output ../1.pdf &amp;&amp; 
    cd .. 
    rm -rf temp

But still no luck. Operating platform Linux.

Merge multiple jpg into single pdf in Linux

My Ubuntu computer had crashed, and when I restarted it MongoDB wasn&#39;t working. I tried the following commands, and got the following output:

    $ mongo
    Error: couldn&#39;t connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91
    exception: connect failed

    $ service mongodb status
    mongodb stop/waiting

    $ service mongodb restart
    stop: Unknown instance: 
    start: Rejected send message, 1 matched rules; type=&quot;method_call&quot;,
           sender=&quot;:1.57&quot; (uid=1000 pid=2227 comm=&quot;start mongodb &quot;)
           interface=&quot;com.ubuntu.Upstart0_6.Job&quot; member=&quot;Start&quot; error name=&quot;(unset)&quot;
           requested_reply=&quot;0&quot;
           destination=&quot;com.ubuntu.Upstart&quot; (uid=0 pid=1 comm=&quot;/sbin/init&quot;)

    $ tail /var/log/mongodb/mongodb.log
    [initandlisten] exception in initAndListen: 12596 old lock file, terminating
    dbexit: 
    [initandlisten] shutdown: going to close listening sockets...
    [initandlisten] shutdown: going to flush diaglog...
    [initandlisten] shutdown: going to close sockets...
    [initandlisten] shutdown: waiting for fs preallocator...
    [initandlisten] shutdown: closing all files...
    [initandlisten] closeAllFiles() finished
    dbexit: really exiting now


(Output reformatted to match website layout.)

What happened? How can I fix it?

MongoDB won&#39;t start after server crash

About a year ago I asked about [header dependencies in CMake][1].

I realized recently that the issue seemed to be that CMake considered those header files to be *external* to the project. At least, when generating a Code::Blocks project the header files do not appear within the project (the source files do). It therefore seems to me that CMake consider those headers to be *external* to the project, and does not track them in the depends.

A quick search in the CMake tutorial only pointed to `include_directories` which does not seem to do what I wish...

What is the proper way to signal to CMake that a particular directory contains headers to be included, and that those headers should be tracked by the generated Makefile?

  [1]: https://stackoverflow.com/questions/7461000/handling-header-files-dependencies-with-cmake




How to properly add include directories with CMake

Ruby 1.9.3

The part of Gemfile

    #...............
    gem &quot;pony&quot;
    gem &quot;bcrypt-ruby&quot;, :require =&gt; &quot;bcrypt&quot;
    gem &quot;nokogiri&quot; 
    #..................

When I&#39;m trying to install gems, I get an error

    alex@ubuntu:~/$ bundle
    Fetching gem metadata from http://rubygems.org/.........
    Fetching gem metadata from http://rubygems.org/..
    Enter your password to install the bundled RubyGems to your system: 
    #####............................................................
    Installing bcrypt-ruby (3.0.1) with native extensions 
    Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
    
            /usr/bin/ruby1.9.1 extconf.rb 
    /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require&#39;: cannot load such file -- mkmf (LoadError)
            from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require&#39;
            from extconf.rb:36:in `&lt;main&gt;&#39;
    
    
    Gem files will remain installed in /home/alex/.bundler/tmp/5526/gems/bcrypt-ruby-3.0.1 for inspection.
    Results logged to /home/alex/.bundler/tmp/5526/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.out
    An error occurred while installing bcrypt-ruby (3.0.1), and Bundler cannot continue.
    Make sure that `gem install bcrypt-ruby -v &#39;3.0.1&#39;` succeeds before bundling.

Then I&#39;m doing this

    sudo gem install bcrypt-ruby -v &#39;3.0.1&#39;
    Building native extensions.  This could take a while...
    ERROR:  Error installing bcrypt-ruby:
            ERROR: Failed to build gem native extension.
    
            /usr/bin/ruby1.9.1 extconf.rb
    /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require&#39;: cannot load such file -- mkmf (LoadError)
            from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require&#39;
            from extconf.rb:36:in `&lt;main&gt;&#39;
    
    
    Gem files will remain installed in /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.0.1 for inspection.
    Results logged to /var/lib/gems/1.9.1/gems/bcrypt-ruby-3.0.1/ext/mri/gem_make.out
    

and getting an error as well.

What did I miss?



Unable to install gem - Failed to build gem native extension - cannot load such file -- mkmf (LoadError)

As the title mentioned I have the following problem: I use `Eclipse` with `Maven Nature` and when I update my Maven Project, I get this error:

&gt;An internal error occurred during: &quot;Updating Maven Project&quot;.  
    Unsupported IClasspathEntry kind=4

The solution that always comes back is the following:

 - rightclick project, remove maven nature
 - `mvn eclipse:clean` (with project open in eclipse/STS)
 - (sometimes they suggest to do `mvn eclipse:eclipse` next)
 - rightclick project and reenable maven nature

Now I exhaustively tried all combinations several times. But I always keep getting the above error. The error starting occurring when I had to `mvn eclipse:eclipse` the project. Before it was always running fine using only **m2eclipse** features and setting everything in eclipse.

An internal error occurred during: &quot;Updating Maven Project&quot;. Unsupported IClasspathEntry kind=4

I wrote some Maven code in Netbeans that has approximately more than 2000 lines. When I compile it on Netbeans, everything is fine, but if I want to run it on command line, I will get these errors:

    generics are not supported in -source 1.3
    (use -source 5 or higher to enable generics)
            ArrayList&lt;ArrayList&lt;Integer&gt;&gt; list = new ArrayList&lt;ArrayList&lt;Integer&gt;&gt;();

    generics are not supported in -source 1.3
    (use -source 5 or higher to enable generics)
            HashSet&lt;Double&gt; resid_List = new HashSet&lt;Double&gt;(Arrays.asList(resid_val));

    generics are not supported in -source 1.3
    (use -source 5 or higher to enable generics)
            List&lt;Integer&gt; ind_ovlpList = new ArrayList&lt;Integer&gt;(Arrays.asList(ind_ovlp));

    generics are not supported in -source 1.3
    (use -source 5 or higher to enable generics)
    public class ColumnComparator implements Comparator&lt;double[]&gt; {

    annotations are not supported in -source 1.3
    (use -source 5 or higher to enable annotations)
    @Override

I tried to use https://stackoverflow.com/questions/3365473/java-1-3-1-compiler-errors, but I got more errors. I found from other posts that I should modify `pom.xml`, but I do not know how. Here is my `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;com.mycompany&lt;/groupId&gt;
      &lt;artifactId&gt;mavenmain&lt;/artifactId&gt;
       &lt;version&gt;1.0-SNAPSHOT&lt;/version&gt;
       &lt;packaging&gt;jar&lt;/packaging&gt;

       &lt;name&gt;mavenmain&lt;/name&gt;
        &lt;url&gt;http://maven.apache.org&lt;/url&gt;

       &lt;properties&gt;
         &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
        &lt;/properties&gt;

       &lt;dependencies&gt;
         &lt;dependency&gt;
           &lt;groupId&gt;junit&lt;/groupId&gt;
            &lt;artifactId&gt;junit&lt;/artifactId&gt;
           &lt;version&gt;3.8.1&lt;/version&gt;
           &lt;scope&gt;test&lt;/scope&gt;
         &lt;/dependency&gt;
         &lt;dependency&gt;
            &lt;groupId&gt;gov.nist.math&lt;/groupId&gt;
            &lt;artifactId&gt;jama&lt;/artifactId&gt;
            &lt;version&gt;1.0.2&lt;/version&gt;
         &lt;/dependency&gt;
       &lt;/dependencies&gt;
     &lt;/project&gt;

It would be great if you can help me!

How do you specify the Java compiler version in a pom.xml file?

I&#39;m working on a Java project in Eclipse, which is built using Maven. I&#39;m using some recycled code from an older project, and one of these classes looks for a file in the `META-INF/services` folder of the JAR with a particular name, then parses the text of this file. In this particular example, it looks for a file with the name of a Java interface, then grabs the class name of the implementation from inside the file.

So basically what I&#39;m trying to do is **include a file in the &quot;META-INF/services&quot; folder of the JAR with a file name (X), and one line of text (Y)**. I&#39;m guessing this should be done using Maven, maybe by specifying an attribute in the POM file, but my research hasn&#39;t turned up anything. I know you&#39;re not supposed to hard-code or manually type out any META files, so I&#39;m not sure what to do here.

How to include a config file in the &quot;META-INF/services&quot; folder of a JAR using Maven

Im&#39; getting an error when deploying an artifact in my own repository in a Nexus server: &quot;Failed to deploy artifacts: Could not transfer artifact&quot; &quot;Failed to transfer file http://&lt;my_url_to_my_repo&gt;/my_artifact. Return code is: 400&quot;

I have Nexus running with one custom repository my_repo with the next maven local configuration:

settings.xml

    &lt;server&gt;
        &lt;id&gt;my_repo&lt;/id&gt;
        &lt;username&gt;user&lt;/username&gt;
        &lt;password&gt;pass&lt;/password&gt;
     &lt;/server&gt;
     ...
     &lt;mirror&gt;
        &lt;id&gt;my_repo&lt;/id&gt;
        &lt;name&gt;Repo Mirror&lt;/name&gt;
        &lt;url&gt;&lt;my_url_to_my_repo&gt;&lt;/url&gt;
        &lt;mirrorOf&gt;*&lt;/mirrorOf&gt;
      &lt;/mirror&gt;

- user has permissions to create/read/write into my_repo -

pom.xml

    &lt;distributionManagement&gt;
    		&lt;repository&gt;
    			&lt;id&gt;my_repo&lt;/id&gt;
    			&lt;name&gt;my_repo&lt;/name&gt;
    			&lt;url&gt;&lt;my_url_to_my_repo&gt;&lt;/url&gt;
    			&lt;layout&gt;default&lt;/layout&gt;
    		&lt;/repository&gt;
    		&lt;snapshotRepository&gt;
    			&lt;id&gt;snapshots&lt;/id&gt;
    			&lt;name&gt;Snapshots&lt;/name&gt;
    			&lt;url&gt;&lt;my_url_to_my_snapshot_repo&gt;&lt;/url&gt;
    		&lt;/snapshotRepository&gt;
    	&lt;/distributionManagement&gt;

and then I execute

    mvn deploy

and get the error. Any idea?

Error when deploying an artifact in Nexus

# Background

Trying to add a Java library to the local Maven repository using a clean install of Apache Maven 3.1.0, with Java 1.7. Here is how the Java archive file was added:

    mvn install:install-file \
      -DgroupId=net.sourceforge.ant4x \
      -DartifactId=ant4x \
      -Dversion=0.3.0 \
      -Dfile=ant4x-0.3.0.jar \
      -Dpackaging=jar

This created the following directory structure:

    $HOME/.m2/repository/net/sourceforge/ant4x/
    ├── 0.3.0
    │   ├── ant4x-0.3.0.jar.lastUpdated
    │   └── ant4x-0.3.0.pom.lastUpdated
    └── ant4x
        ├── 0.3.0
        │   ├── ant4x-0.3.0.jar
        │   ├── ant4x-0.3.0.pom
        │   └── _remote.repositories
        └── maven-metadata-local.xml

The project&#39;s `pom.xml` file references the dependent project (the tree above) as follows:

    &lt;properties&gt;
      &lt;java-version&gt;1.5&lt;/java-version&gt;
      &lt;net.sourceforge.ant4x-version&gt;0.3.0&lt;/net.sourceforge.ant4x-version&gt;
      &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
    &lt;/properties&gt;
    ...
    &lt;dependency&gt;
      &lt;groupId&gt;net.sourceforge&lt;/groupId&gt;
      &lt;artifactId&gt;ant4x&lt;/artifactId&gt;
      &lt;version&gt;${net.sourceforge.ant4x-version}&lt;/version&gt;
      &lt;scope&gt;provided&lt;/scope&gt;
    &lt;/dependency&gt;

# Problem

After running `mvn compile`, the following error was returned ([full log on Pastebin][1]):

    [ERROR] Failed to execute goal on project ant4docbook: Could not resolve dependencies for project net.sourceforge:ant4docbook:jar:0.6-SNAPSHOT: Failure to find net.sourceforge:ant4x:jar:0.3.0 in http://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -&gt; [Help 1]

The [documentation][2] notes a number of issues that could be present, however none of these appear to apply.

# Ideas

I tried the following, as per the documentation:

1. Copy default settings to user&#39;s home directory for Maven:&lt;pre&gt;
   cp /opt/apache-maven-3.1.0/conf/settings.xml $HOME/.m2/.&lt;/pre&gt;
1. Edit the user&#39;s settings.xml file.
1. Update the value for the local repository:&lt;pre&gt;
   &lt;localRepository&gt;${user.home}/.m2/repository&lt;/localRepository&gt;&lt;/pre&gt;
1. Save the file.

I also tried the following commands:

    mvn -U
    mvn clear -U

I tried using Maven 3.0.5, but that failed, too.

# Question

How do you force Maven to use the local version of the library, rather than trying to seek out a library that is not yet available to download?

# Related

Related questions and information that did not resolve the issue:

- https://stackoverflow.com/questions/5684933/the-pom-for-org-springframework-securityorg-springframework-security-webjar3
- https://stackoverflow.com/questions/5805962/how-can-i-locate-the-pom-which-requests-a-missing-pom
- https://stackoverflow.com/questions/1355548/maven-including-jar-not-found-in-public-repository
- http://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html
- http://giallone.blogspot.ca/2012/12/maven-install-missing-offline.html

  [1]: http://pastebin.com/raw.php?i=hQXa8WV9
  [2]: https://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException

Content Type	Original Author	Original Content on Stackoverflow
Question	someone	View Question on Stackoverflow
Solution 1 - Java	Thomas	View Answer on Stackoverflow
Solution 2 - Java	jens-na	View Answer on Stackoverflow
Solution 3 - Java	Kent	View Answer on Stackoverflow
Solution 4 - Java	Behe	View Answer on Stackoverflow

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