Fork of vscode-java to works with coc.nvim.

1. Install this extension by run command:

:CocInstall coc-java

2. If you do not have a Java Development Kit correctly set
   • Download and install a recent Java Development Kit (latest Java 8 is the minimum requirement).
3. Extension is activated when you first access a Java file
   • Recognizes projects with Maven or Gradle build files in the directory hierarchy.

Note: this extension would download latest jdt.ls for you when not found.

The path to the Java Development Kit is searched in the following order:

• the java.home setting in coc.nvim settings (workspace then user settings)
• the JDK_HOME environment variable
• the JAVA_HOME environment variable
• on the current system path

• Maven pom.xml project support
• Basic Gradle Java project support
• As you type reporting of parsing and compilation errors
• Code completion
• Code actions / Refactoring
• Javadoc hovers
• Organize imports
• Type search
• Code outline
• Code navigation
• Code lens (references/implementations)
• Highlights
• Code formatting (on-type/selection/file)
• Code snippets
• Annotation processing support (automatic for Maven projects)

Please note that Gradle-based Android projects are not supported.

The following commands are available:

• java.updateLanguageServer: download latest jdt.ls from eclipse.org.
• java.projectConfiguration.update: is available when the editor is focused on a Maven pom.xml or a Gradle file. It forces project configuration / classpath updates (eg. dependency changes or Java compilation level), according to the project build descriptor.
• java.open.serverLog: opens the Java Language Server log file, useful for troubleshooting problems.
• java.workspace.compile: manually triggers compilation of the workspace.
• java.action.organizeImports: Organize imports in the currently opened Java file.
• java.open.formatter.settings: Open the Eclipse formatter settings. Creates a new settings file if none exists.
• java.clean.workspace: Clean the Java language server workspace.

The following settings are supported:

• java.home : Absolute path to JDK 8 home folder used to launch the Java Language Server. Requires coc server restart.
• java.jdt.ls.vmargs : Extra VM arguments used to launch the Java Language Server. Requires coc server restart.
• java.jdt.ls.home : Directory contains jdt.ls server, would be used instead of bundled server when specified.
• java.configuration.updateBuildConfiguration : Specifies how modifications on build files update the Java classpath/configuration. Supported values are disabled (nothing happens), interactive (asks about updating on every modification), automatic (updating is automatically triggered).
• java.errors.incompleteClasspath.severity : Specifies the severity of the message when the classpath is incomplete for a Java file. Supported values are ignore, info, warning, error.
• java.trace.server : Traces the communication between VS Code and the Java language server.
• java.configuration.maven.userSettings : Absolute path to Maven's settings.xml.
• java.import.exclusions : Exclude folders from import via glob patterns.
• java.referencesCodeLens.enabled : Enable/disable the references code lenses.
• java.implementationsCodeLens.enabled : Enable/disable the implementations code lenses.
• java.signatureHelp.enabled : Enable/disable signature help support (triggered on ().
• java.format.enabled : Enable/disable the default Java formatter.
• java.contentProvider.preferred : Preferred content provider (see 3rd party decompilers available in vscode-java-decompiler).
• java.import.gradle.enabled : Enable/disable the Gradle importer.
• java.import.maven.enabled : Enable/disable the Maven importer.
• java.autobuild.enabled : Enable/disable the 'auto build'.
• java.completion.favoriteStaticMembers : Defines a list of static members or types with static members.
• java.completion.importOrder : Defines the sorting order of import statements.
• java.progressReports.enabled : [Experimental] Enable/disable progress reports from background processes on the server.
• java.completion.overwrite : When set to true, code completion overwrites the current text. When set to false, code is simply added instead.
• java.format.settings.url : Specifies the url or file path to the Eclipse formatter xml settings.
• java.format.settings.profile : Optional formatter profile name from the Eclipse formatter settings.
• java.format.comments.enabled : Includes the comments during code formatting.
• java.format.onType.enabled : Enable/disable on-type formatting (triggered on ;, } or <return>).
• java.completion.guessMethodArguments : When set to true, method arguments are guessed when a method is selected from as list of code assist proposals.
• java.completion.enabled : Enable/disable code completion support.
• java.clean.workspace : Clean the Java language server workspace.
• java.foldingRange.enabled: Enable/disable smart folding range support. If disabled, it will use the default indentation-based folding range provided by VS Code.

New in 1.3.0:

• java.maven.downloadSources: Enable/disable eager download of Maven source artifacts.
• java.codeGeneration.useBlocks: Use blocks in 'if' statements when generating the methods. Defaults to false.
• java.codeGeneration.generateComments: Generate method comments when generating the methods. Defaults to false.
• java.codeGeneration.toString.template: The template for generating the toString method. Defaults to ${object.className} [${member.name()}=${member.value}, ${otherMembers}].
• java.codeGeneration.toString.codeStyle: The code style for generating the toString method. Defaults to STRING_CONCATENATION.
• java.codeGeneration.toString.skipNullValues: Skip null values when generating the toString method. Defaults to false.
• java.codeGeneration.toString.listArrayContents: List contents of arrays instead of using native toString(). Defaults to true.
• java.codeGeneration.toString.limitElements: Limit number of items in arrays/collections/maps to list, if 0 then list all. Defaults to 0.

New in 1.3.1:

• java.import.gradle.wrapper.enabled: Enable/disable the Gradle wrapper.
• java.import.gradle.version: Gradle version, used if the gradle wrapper is missing or disabled.
• CodeAction: generate constructors and generate delegateMethods

• Run :messages to get echoed messages in vim.
• Text JDT.LS would be in your statusline when you have statusline integration with coc.nvim.
• Enable verbose trace for jdt.ls by add "java.trace.server": "verbose" in your settings file, then check output by :CocCommand workspace.showOutput java
• Run :CocCommand java.open.serverLog to open log of jdt.ls.
• Try :CocCommand java.clean.workspace to clean workspace cache.

EPL 1.0, See LICENSE for more information.