ale/doc/ale-java.txt

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ALE Java Integration                                         *ale-java-options*


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checkstyle                                                *ale-java-checkstyle*

g:ale_java_checkstyle_options                   *g:ale_java_checkstyle_options*
                                                *b:ale_java_checkstyle_options*

  Type: String
  Default: '-c /google_checks.xml'

  This variable can be changed to modify flags given to checkstyle.


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javac                                                          *ale-java-javac*

g:ale_java_javac_classpath                         *g:ale_java_javac_classpath*
                                                   *b:ale_java_javac_classpath*
  Type: |String|
  Default: `''`

  This variable can be set to change the global classpath for Java.


g:ale_java_javac_executable                       *g:ale_java_javac_executable*
                                                  *b:ale_java_javac_executable*
  Type: |String|
  Default: `'javac'`

  This variable can be set to change the executable path used for javac.


g:ale_java_javac_options                             *g:ale_java_javac_options*
                                                     *b:ale_java_javac_options*
  Type: |String|
  Default: `''`

  This variable can be set to pass additional options to javac.


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google-java-format                                *ale-java-google-java-format*


g:ale_java_google_java_format_executable
                                     *g:ale_java_google_java_format_executable*
                                     *b:ale_java_google_java_format_executable*
  Type: |String|
  Default: `'google-java-format'`

  See |ale-integrations-local-executables|


g:ale_java_google_java_format_options   *g:ale_java_google_java_format_options*
                                        *b:ale_java_google_java_format_options*
  Type: |String|
  Default: `''`

  This variable can be set to pass additional options


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pmd                                                              *ale-java-pmd*

g:ale_java_pmd_options                                 *g:ale_java_pmd_options*
                                                       *b:ale_java_pmd_options*

  Type: String
  Default: '-R category/java/bestpractices'

  This variable can be changed to modify flags given to PMD. Do not specify -f
  and -d. They are added automatically.


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javalsp                                                      *ale-java-javalsp*

To enable Java LSP linter you need to download and build the vscode-javac
language server from https://github.com/georgewfraser/java-language-server.
Simply download the source code and then build a distribution:

   scripts/link_mac.sh

or

   scripts/link_windows.sh

This generates a dist/mac or dist/windows directory that contains the
language server. To let ALE use this language server you need to set the
g:ale_java_javalsp_executable variable to the absolute path of the java
executable in this directory.

g:ale_java_javalsp_executable                   *g:ale_java_javalsp_executable*
                                                *b:ale_java_javalsp_executable*
  Type: |String|
  Default: `'java'`

This variable can be changed to use a different executable for java.


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eclipselsp                                                *ale-java-eclipselsp*

To enable Eclipse LSP linter you need to clone and build the eclipse.jdt.ls
language server from https://github.com/eclipse/eclipse.jdt.ls. Simply
clone the source code repo and then build the plugin:

   ./mvnw clean verify

Note: currently, the build can only run when launched with JDK 8. JDK 9 or more
recent versions can be used to run the server though.

After build completes the files required to run the language server will be
located inside the repository folder `eclipse.jdt.ls`. Please ensure to set
|g:ale_java_eclipselsp_path| to the absolute path of that folder.

You could customize compiler options and code assists of the server.
Under your project folder, modify the file `.settings/org.eclipse.jdt.core.prefs` 
with options presented at
https://help.eclipse.org/neon/topic/org.eclipse.jdt.doc.isv/reference/api/org/eclipse/jdt/core/JavaCore.html.

g:ale_java_eclipselsp_path                         *g:ale_java_eclipselsp_path*
                                                   *b:ale_java_eclipselsp_path*

  Type: |String|
  Default: `'$HOME/eclipse.jdt.ls'`

  Absolute path to the location of the eclipse.jdt.ls repository folder. Or if
  you have VSCode extension installed the absolute path to the VSCode extensions
  folder (e.g. $HOME/.vscode/extensions in Linux).


g:ale_java_eclipselsp_executable                *g:ale_java_eclipse_executable*
                                                *b:ale_java_eclipse_executable*
  Type: |String|
  Default: `'java'`

  This variable can be set to change the executable path used for java.


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uncrustify                                                *ale-java-uncrustify*

See |ale-c-uncrustify| for information about the available options.


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