How to change an Eclipse default project into a Java project

Question

I checked out a project from SVN and did not specify the project type  so it checked out as a  default  project   What is the easiest way to quickly convert this into a  Java  project   I m using Eclipse version 3 3 2

User · Answer

Another possible way is to delete the project from Eclipse  but don t delete the project contents from disk   and then use the New Java Project wizard to create a project in-place   That wizard will detect the Java code and set up build paths automatically

User · Answer

Joe s approach is actually the most effective means that I have found for doing this conversation  To elaborate a little bit more on it  you should right click on the project in the package explorer in eclipse and then select to delete it without removing directory or its contents  Next  you select to create a Java project  File -  New -  Java Project  and in the Contents part of the New Java Project dialog box  select  Create project from existing source    The advantage this approach is that source folders will be properly identified  I found that mucking around with the  project file can lead to the entire directory being considered a source folder which is not what you want

User · Answer

Using project Project facets we can configure characteristics and requirements for projects     To find Project facets on eclipse      Step 1  Right click on the project and choose properties from the menu  Step 2 Select project facets option  Click on Convert to faceted form     Step 3  We can find all available facets you can select and change their settings

User · Answer

Open the  project file and add java nature and builders    lt projectDescription gt       lt buildSpec gt           lt buildCommand gt               lt name gt org eclipse jdt core javabuilder lt  name gt               lt arguments gt               lt  arguments gt           lt  buildCommand gt       lt  buildSpec gt       lt natures gt           lt nature gt org eclipse jdt core javanature lt  nature gt       lt  natures gt   lt  projectDescription gt    And in  classpath  reference the Java libs    lt classpath gt       lt classpathentry kind  con  path  org eclipse jdt launching JRE CONTAINER   gt   lt  classpath gt

User · Answer

Open the  project file and add java nature and builders    lt projectDescription gt       lt buildSpec gt           lt buildCommand gt               lt name gt org eclipse jdt core javabuilder lt  name gt               lt arguments gt               lt  arguments gt           lt  buildCommand gt       lt  buildSpec gt       lt natures gt           lt nature gt org eclipse jdt core javanature lt  nature gt       lt  natures gt   lt  projectDescription gt    And in  classpath  reference the Java libs    lt classpath gt       lt classpathentry kind  con  path  org eclipse jdt launching JRE CONTAINER   gt   lt  classpath gt

User · Answer

I deleted the project without removing content   I then created a new Java project from an existing resource   Pointing at my SVN checkout root folder   This worked for me   Although  Chris  way would have been much quicker   That s good to note for future   Thanks

User · Answer

I deleted the project without removing content   I then created a new Java project from an existing resource   Pointing at my SVN checkout root folder   This worked for me   Although  Chris  way would have been much quicker   That s good to note for future   Thanks

User · Answer

In newer versions of eclipse  I m using 4 9 0  there is another  possibly easier  methods  As well as Project Facets  there are now Project Natures  Here the process is simple get the Project Natures property page up  and then click the Add    button  This will come up with possible natures included Java Nature and Eclipse Faceted Project Properties  Just add the Java Nature and ignore the various warning messages and your done       This method might be better as you don t have to convert to Faceted form first  Furthermore Java was not offered in the add Facet menu

User · Answer

Open the  project file and add java nature and builders    lt projectDescription gt       lt buildSpec gt           lt buildCommand gt               lt name gt org eclipse jdt core javabuilder lt  name gt               lt arguments gt               lt  arguments gt           lt  buildCommand gt       lt  buildSpec gt       lt natures gt           lt nature gt org eclipse jdt core javanature lt  nature gt       lt  natures gt   lt  projectDescription gt    And in  classpath  reference the Java libs    lt classpath gt       lt classpathentry kind  con  path  org eclipse jdt launching JRE CONTAINER   gt   lt  classpath gt

User · Answer

Depending on the Eclipse in question the required WTP packages may be found with different names  For example in Eclipse Luna I found it easiest to search with  Tools  and choose one that mentioned Tools for Java EE development  That added the project facet functionality  Searching with  WTP  wasn t of much help

User · Answer

Depending on the Eclipse in question the required WTP packages may be found with different names  For example in Eclipse Luna I found it easiest to search with  Tools  and choose one that mentioned Tools for Java EE development  That added the project facet functionality  Searching with  WTP  wasn t of much help

User · Answer

In newer versions of eclipse  I m using 4 9 0  there is another  possibly easier  methods  As well as Project Facets  there are now Project Natures  Here the process is simple get the Project Natures property page up  and then click the Add    button  This will come up with possible natures included Java Nature and Eclipse Faceted Project Properties  Just add the Java Nature and ignore the various warning messages and your done       This method might be better as you don t have to convert to Faceted form first  Furthermore Java was not offered in the add Facet menu

User · Answer

Joe s approach is actually the most effective means that I have found for doing this conversation  To elaborate a little bit more on it  you should right click on the project in the package explorer in eclipse and then select to delete it without removing directory or its contents  Next  you select to create a Java project  File -  New -  Java Project  and in the Contents part of the New Java Project dialog box  select  Create project from existing source    The advantage this approach is that source folders will be properly identified  I found that mucking around with the  project file can lead to the entire directory being considered a source folder which is not what you want

User · Answer

Manually changing XML and or settings is very dangerous in eclipse unless you know exactly what you re doing  In the other case you might end up finding your complete project is screwed  Taking a backup is very recommended   How to do it just using Eclipse    Select project  Open the project properties through Project -  Properties  Go to  Targetted Runtimes  and add the proper runtime  Click APPLY  Go to  Project Facets  and select the JAVA facet which has appeared due to step 4  Click APPLY Set your build path  If it s a Maven project  you might want to select the project  click Maven -  Update Project configuration      That did it for me  And Eclipse is configured correctly  Hope it ll work for you too

User · Answer

Using project Project facets we can configure characteristics and requirements for projects     To find Project facets on eclipse      Step 1  Right click on the project and choose properties from the menu  Step 2 Select project facets option  Click on Convert to faceted form     Step 3  We can find all available facets you can select and change their settings

User · Answer

I deleted the project without removing content   I then created a new Java project from an existing resource   Pointing at my SVN checkout root folder   This worked for me   Although  Chris  way would have been much quicker   That s good to note for future   Thanks

User · Answer

Right click on project Configure -   Convert to Faceted Form  You will get a popup  Select  Java  in  Project Facet  column  Press Apply and Ok

User · Answer

In recent versions of eclipse the fix is slightly different      Right click and select Project Properties Select Project Facets If necessary  click  Convert to faceted form  Select  Java  facet Click OK

User · Answer

Another possible way is to delete the project from Eclipse  but don t delete the project contents from disk   and then use the New Java Project wizard to create a project in-place   That wizard will detect the Java code and set up build paths automatically

User · Answer

Manually changing XML and or settings is very dangerous in eclipse unless you know exactly what you re doing  In the other case you might end up finding your complete project is screwed  Taking a backup is very recommended   How to do it just using Eclipse    Select project  Open the project properties through Project -  Properties  Go to  Targetted Runtimes  and add the proper runtime  Click APPLY  Go to  Project Facets  and select the JAVA facet which has appeared due to step 4  Click APPLY Set your build path  If it s a Maven project  you might want to select the project  click Maven -  Update Project configuration      That did it for me  And Eclipse is configured correctly  Hope it ll work for you too

User · Answer

In recent versions of eclipse the fix is slightly different      Right click and select Project Properties Select Project Facets If necessary  click  Convert to faceted form  Select  Java  facet Click OK

User · Answer

I deleted the project without removing content   I then created a new Java project from an existing resource   Pointing at my SVN checkout root folder   This worked for me   Although  Chris  way would have been much quicker   That s good to note for future   Thanks

User · Answer

You can do it directly from eclipse using the Navigator view  Window -  Show View -  Navigator   In the Navigator view select the project and open it so that you can see the file  project  Right click -  Open  You will get a XML editor view  Edit the content of the node natures and insert a new child nature with org eclipse jdt core javanature as content  Save   Now create a file  classpath  it will open in the XML editor  Add a node named classpath  add a child named classpathentry with the attributes kind with content con and another one named path and content org eclipse jdt launching JRE CONTAINER  Save-  Much easier  copy the files  project and  classpath from an existing Java project and edit the node result name to the name of this project  Maybe you have to refresh the project  F5    You ll get the same result as with the solution of Chris Marasti-Georg    Edit

User · Answer

You can do it directly from eclipse using the Navigator view  Window -  Show View -  Navigator   In the Navigator view select the project and open it so that you can see the file  project  Right click -  Open  You will get a XML editor view  Edit the content of the node natures and insert a new child nature with org eclipse jdt core javanature as content  Save   Now create a file  classpath  it will open in the XML editor  Add a node named classpath  add a child named classpathentry with the attributes kind with content con and another one named path and content org eclipse jdt launching JRE CONTAINER  Save-  Much easier  copy the files  project and  classpath from an existing Java project and edit the node result name to the name of this project  Maybe you have to refresh the project  F5    You ll get the same result as with the solution of Chris Marasti-Georg    Edit

User · Answer

Open the  project file and add java nature and builders    lt projectDescription gt       lt buildSpec gt           lt buildCommand gt               lt name gt org eclipse jdt core javabuilder lt  name gt               lt arguments gt               lt  arguments gt           lt  buildCommand gt       lt  buildSpec gt       lt natures gt           lt nature gt org eclipse jdt core javanature lt  nature gt       lt  natures gt   lt  projectDescription gt    And in  classpath  reference the Java libs    lt classpath gt       lt classpathentry kind  con  path  org eclipse jdt launching JRE CONTAINER   gt   lt  classpath gt

User · Answer

Right click on project Configure -   Convert to Faceted Form  You will get a popup  Select  Java  in  Project Facet  column  Press Apply and Ok

[java] How to change an Eclipse default project into a Java project

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