Required Parameters

Name	Type	Since	Description
buildOutputDirectory	File	-	Location of the compiled classes. Default value is: ${project.build.outputDirectory}.
generateDirectory	File	-	Folder where generated-source will be created (automatically added to compile classpath). Default value is: ${project.build.directory}/generated-sources/gwt.
runTarget	String	-	URL that should be automatically opened in the GWT shell. For example com.myapp.gwt.Module/Module.html. When the host page is outside the module "public" folder (for example, at webapp root), the module MUST be specified (using a single <module> in configuration or by setting -Dgwt.module=..) and the runTarget parameter can only contain the host page URI. When the GWT module host page is part of the module "public" folder, the runTarget MAY define the full GWT module path (com.myapp.gwt.Module/Module.html) that will be automatically converted according to the rename-to directive into renamed/Module.html.
webXml	File	-	Source web.xml deployment descriptor that is used for GWT shell and for deployment WAR to "merge" servlet entries. Default value is: ${basedir}/src/main/webapp/WEB-INF/web.xml.

Optional Parameters

Name	Type	Since	Description
appEngineArtifactId	String	2.1.0-1	groupId to download appengine sdk from maven repo Default value is: appengine-java-sdk.
appEngineGroupId	String	2.1.0-1	groupId to download appengine sdk from maven repo Default value is: com.google.appengine.
appEngineHome	File	2.1.0-1	Location to find appengine sdk or to unzip downloaded one see appEngineVersion Default value is: ${project.build.directory}/appengine-sdk/.
appEngineVersion	String	2.1.0-1	set the appengine sdk to use Artifact will be downloaded with groupId : appEngineGroupId and artifactId appEngineArtifactId Default value is: 1.3.8.
attachDebugger	boolean	-	Attach to the debugger application at the specified debugPort. Default value is: false.
bindAddress	String	2.1.0-1	Set GWT shell bindAddress. Can be set from command line using '-Dgwt.bindAddress=...'
blacklist	String	-	Set GWT shell protocol/host blacklist. Can be set from command line using '-Dgwt.blacklist=...'
codeServerPort	int	-	Runs the code server on the specified port. Default value is: 9997.
compileSourcesArtifacts	String[]	-	Artifacts to be included as source-jars in GWTCompiler Classpath. Removes the restriction that source code must be bundled inside of the final JAR when dealing with external utility libraries not designed exclusivelly for GWT. The plugin will download the source.jar if necessary. This option is a workaround to avoid packaging sources inside the same JAR when splitting and application into modules. A smaller JAR can then be used on server classpath and distributed without sources (that may not be desirable).
contextXml	File	-	Source Tomcat context.xml for GWT shell - copied to /gwt/localhost/ROOT.xml (used as the context.xml for the SHELL - requires Tomcat 5.0.x format - hence no default).
copyWebapp	boolean	2.1.0-1	Copies the contents of warSourceDirectory to hostedWebapp. Can be set from command line using '-Dgwt.copyWebapp=...' Default value is: false.
debugPort	int	-	Port to listen for debugger connection on. Default value is: 8000.
debugSuspend	boolean	-	Whether or not to suspend execution until a debugger connects. Default value is: true.
deploy	File	2.3.0-1	The directory into which deployable but not servable output files will be written (defaults to 'WEB-INF/deploy' under the webappDirectory directory/jar, and may be the same as the extra directory/jar)
executedProject	MavenProject	-	The MavenProject executed by the "compile" phase
extraJvmArgs	String	-	Extra JVM arguments that are passed to the GWT-Maven generated scripts (for compiler, shell, etc - typically use -Xmx512m here, or -XstartOnFirstThread, etc). Can be set from command line using '-Dgwt.extraJvmArgs=...', defaults to setting max Heap size to be large enough for most GWT use cases. Default value is: -Xmx512m.
gen	File	-	Location on filesystem where GWT will write generated content for review (-gen option to GWT Compiler). Can be set from command line using '-Dgwt.gen=...' Default value is: ${project.build.directory}/.generated.
genParam	boolean	2.5.0-rc1	Whether to add -gen parameter to the compiler command line Can be set from command line using '-Dgwt.genParam=false'. Defaults to 'true' for backwards compatibility. Default value is: true.
gwtSdkFirstInClasspath	boolean	2.1.0-1	The forked command line will use gwt sdk jars first in classpath. see issue http://code.google.com/p/google-web-toolkit/issues/detail?id=5290 Default value is: false.
hostedWebapp	File	-	Location of the hosted-mode web application structure. Default value is: ${project.build.directory}/${project.build.finalName}.
inplace	boolean	-	Select the place where GWT application is built. In inplace mode, the warSourceDirectory is used to match the same use case of the war:inplace http://maven.apache.org/plugins/maven-war-plugin/inplace-mojo.html goal. Default value is: false.
jvm	String	1.1	Option to specify the jvm (or path to the java executable) to use with the forking scripts. For the default, the jvm will be the same as the one used to run Maven.
logLevel	String	-	GWT logging level (-logLevel ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL). Can be set from command line using '-Dgwt.logLevel=...' Default value is: INFO.
module	String	-	A single GWT module. Shortcut for <modules> or option to specify a single module from command line
modules	String[]	-	The project GWT modules. If not set, the plugin will scan the project for .gwt.xml files.
noServer	boolean	-	Prevents the embedded GWT Tomcat server from running (even if a port is specified). Can be set from command line using '-Dgwt.noserver=...' Default value is: false.
persistentunitcache	Boolean	2.5.0-rc1	Whether to use the persistent unit cache or not. Can be set from command line using '-Dgwt.persistentunitcache=...'
persistentunitcachedir	File	2.5.0-rc1	The directory where the persistent unit cache will be created if enabled. Can be set from command line using '-Dgwt.persistentunitcachedir=...'
port	int	-	Runs the embedded GWT server on the specified port. Default value is: 8888.
runClasspathExcludes	List	2.1.0-1	List of Pattern jars to exclude from the classPath when running dev mode
runTimeOut	int	-	Forked process execution timeOut (in seconds). Primary used for integration-testing.
server	String	-	Specifies a different embedded web server to run (must implement ServletContainerLauncher)
style	String	-	GWT JavaScript compiler output style (-style OBF[USCATED], PRETTY, or DETAILED). Can be set from command line using '-Dgwt.style=...' Default value is: OBF.
systemProperties	Map	1.2	List of System properties to pass when running the hosted mode.
timeOut	int	-	Forked process execution timeOut. Usefull to avoid maven to hang in continuous integration server.
tomcat	File	-	Specify the location on the filesystem for the generated embedded Tomcat directory. Default value is: ${project.build.directory}/tomcat.
warSourceDirectory	File	-	Location of the web application static resources (same as maven-war-plugin parameter) Default value is: ${basedir}/src/main/webapp.
webXmlServletPathAsIs	boolean	-	Specifies whether or not to add the module name as a prefix to the servlet path when merging web.xml. If you set this to false the exact path from the GWT module will be used, nothing else will be prepended. Default value is: false.
webappDirectory	File	-	Location on filesystem where GWT will write output files (-out option to GWTCompiler). Default value is: ${project.build.directory}/${project.build.finalName}.
whitelist	String	-	Set GWT shell protocol/host whitelist. Can be set from command line using '-Dgwt.whitelist=...'

Parameter Details

appEngineArtifactId:

• Type: java.lang.String
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.appEngineArtifactId}
• Default: appengine-java-sdk

---

appEngineGroupId:

• Type: java.lang.String
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.appEngineGroupId}
• Default: com.google.appengine

---

appEngineHome:

• Type: java.io.File
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.appEngineHome}
• Default: ${project.build.directory}/appengine-sdk/

---

appEngineVersion:

• Type: java.lang.String
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.appEngineVersion}
• Default: 1.3.8

---

attachDebugger:

• Type: boolean
• Required: No
• Expression: ${attachDebugger}
• Default: false

---

bindAddress:

• Type: java.lang.String
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.bindAddress}

---

blacklist:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.blacklist}

---

buildOutputDirectory:

• Type: java.io.File
• Required: Yes
• Default: ${project.build.outputDirectory}

---

codeServerPort:

• Type: int
• Required: No
• Expression: ${gwt.codeServerPort}
• Default: 9997

---

compileSourcesArtifacts:

• Type: java.lang.String[]
• Required: No

---

contextXml:

• Type: java.io.File
• Required: No

---

copyWebapp:

• Type: boolean
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.copyWebapp}
• Default: false

---

debugPort:

• Type: int
• Required: No
• Expression: ${gwt.debugPort}
• Default: 8000

---

debugSuspend:

• Type: boolean
• Required: No
• Expression: ${gwt.debugSuspend}
• Default: true

---

deploy:

• Type: java.io.File
• Since: 2.3.0-1
• Required: No

---

executedProject:

• Type: org.apache.maven.project.MavenProject
• Required: No
• Expression: ${executedProject}

---

extraJvmArgs:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.extraJvmArgs}
• Default: -Xmx512m

---

gen:

• Type: java.io.File
• Required: No
• Expression: ${gwt.gen}
• Default: ${project.build.directory}/.generated

---

genParam:

• Type: boolean
• Since: 2.5.0-rc1
• Required: No
• Expression: ${gwt.genParam}
• Default: true

---

generateDirectory:

• Type: java.io.File
• Required: Yes
• Default: ${project.build.directory}/generated-sources/gwt

---

gwtSdkFirstInClasspath:

• Type: boolean
• Since: 2.1.0-1
• Required: No
• Expression: ${gwt.gwtSdkFirstInClasspath}
• Default: false

---

hostedWebapp:

• Type: java.io.File
• Required: No
• Default: ${project.build.directory}/${project.build.finalName}

---

inplace:

• Type: boolean
• Required: No
• Expression: ${gwt.inplace}
• Default: false

---

jvm:

• Type: java.lang.String
• Since: 1.1
• Required: No
• Expression: ${gwt.jvm}

---

logLevel:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.logLevel}
• Default: INFO

---

module:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.module}

---

modules:

• Type: java.lang.String[]
• Required: No

---

noServer:

• Type: boolean
• Required: No
• Expression: ${gwt.noserver}
• Default: false

---

persistentunitcache:

• Type: java.lang.Boolean
• Since: 2.5.0-rc1
• Required: No
• Expression: ${gwt.persistentunitcache}

---

persistentunitcachedir:

• Type: java.io.File
• Since: 2.5.0-rc1
• Required: No
• Expression: ${gwt.persistentunitcachedir}

---

port:

• Type: int
• Required: No
• Expression: ${gwt.port}
• Default: 8888

---

runClasspathExcludes:

• Type: java.util.List
• Since: 2.1.0-1
• Required: No

---

runTarget:

• Type: java.lang.String
• Required: Yes
• Expression: ${runTarget}

---

runTimeOut:

• Type: int
• Required: No

---

server:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.server}

---

style:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.style}
• Default: OBF

---

systemProperties:

• Type: java.util.Map
• Since: 1.2
• Required: No

---

timeOut:

• Type: int
• Required: No

---

tomcat:

• Type: java.io.File
• Required: No
• Default: ${project.build.directory}/tomcat

---

warSourceDirectory:

• Type: java.io.File
• Required: No
• Default: ${basedir}/src/main/webapp

---

webXml:

• Type: java.io.File
• Required: Yes
• Default: ${basedir}/src/main/webapp/WEB-INF/web.xml

---

webXmlServletPathAsIs:

• Type: boolean
• Required: No
• Default: false

---

webappDirectory:

• Type: java.io.File
• Required: No
• Expression: ${gwt.war}
• Default: ${project.build.directory}/${project.build.finalName}

---

whitelist:

• Type: java.lang.String
• Required: No
• Expression: ${gwt.whitelist}