我用 GWT 2.8.1 创建了一个 wesbite 并尝试使用 GMT。我遵循了 GMT 演示网站上的入门指南，但没有使用原型。这是我的pom：
<?xml version="1.0" encoding="UTF-8"?>
<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>de.sample.sampleproject</groupId>
<artifactId>gwt-project</artifactId>
<packaging>war</packaging>
<version>1.0</version>
<name>Maven Archetype for GWT</name>
<properties>
<gwtVersion>2.8.1</gwtVersion>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt</artifactId>
<version>${gwtVersion}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.github.gwtmaterialdesign</groupId>
<artifactId>gwt-material</artifactId>
<version>2.0-rc5</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
<finalName>gwt-project</finalName>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwtVersion}</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test</goal>
<goal>generateAsync</goal>
</goals>
</execution>
</executions>
<configuration>
<extraJvmArgs>-Djava.io.tmpdir=${project.build.directory}\tmp</extraJvmArgs>
<runTarget>SampleModule.html</runTarget>
<modules>
<module>de.sample.sampleproject.SampleModule</module>
</modules>
<copyWebapp>true</copyWebapp>
</configuration>
</plugin>
</plugins>
</build>
这是我的 .gwt.xml：
<?xml version="1.0" encoding="UTF-8"?>
<module rename-to='SampleModule'>
<inherits name='com.google.gwt.user.User'/>
<!--<inherits name='com.google.gwt.user.theme.standard.Standard'/>-->
<inherits name="gwt.material.design.GwtMaterialDesign"/>
<entry-point class='de.sample.sampleproject.client.SampleModule'/>
<source path='client'/>
<source path='shared'/>
</module>
如果我运行它并启动浏览器（在我的情况下是 Opera，但也尝试了 FF 和 Edge），它会遇到内存不足。如果我继承com.google.gwt.user.theme.standard.Standard而不是gwt.material.design.GwtMaterialDesign，应用程序运行良好。
我将我的 pom 与 GMT 原型中的 pom 进行了比较，主要区别在于 GIN、GWTP 等附加插件。格林威治标准时间是否依赖于这些，还是我错过了其他东西？
编辑
这是浏览器 OOM 前后的控制台输出：
"C:\Program Files\Java\jdk1.8.0_121\bin\java" -Dmaven.multiModuleProjectDirectory=D:\...\IntelliJ\gwt-project -Dmaven.home=D:\...\apache-maven-3.3.9 -Dclassworlds.conf=D:\...\apache-maven-3.3.9\bin\m2.conf -javaagent:C:\MyPrograms\Jetbrains\apps\IDEA-U\ch-0\171.4424.56\lib\idea_rt.jar=51493:C:\MyPrograms\Jetbrains\apps\IDEA-U\ch-0\171.4424.56\bin -Dfile.encoding=UTF-8 -classpath D:\...\apache-maven-3.3.9\boot\plexus-classworlds-2.5.2.jar org.codehaus.classworlds.Launcher -Didea.version=2017.1.3 clean gwt:run
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Archetype for GWT 1.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ gwt-project ---
[INFO] Deleting D:\...\IntelliJ\gwt-project\target
[INFO]
[INFO] >>> gwt-maven-plugin:2.8.1:run (default-cli) > process-classes @ gwt-project >>>
[INFO]
[INFO] --- gwt-maven-plugin:2.8.1:generateAsync (default) @ gwt-project ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ gwt-project ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ gwt-project ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 6 source files to D:\...\IntelliJ\gwt-project\target\gwt-project\WEB-INF\classes
[INFO]
[INFO] <<< gwt-maven-plugin:2.8.1:run (default-cli) < process-classes @ gwt-project <<<
[INFO]
[INFO] --- gwt-maven-plugin:2.8.1:run (default-cli) @ gwt-project ---
[INFO] create exploded Jetty webapp in D:\...\IntelliJ\gwt-project\target\gwt-project
[INFO] Super Dev Mode starting up
[INFO] [WARN] Can't create cache directory: D:\...\IntelliJ\gwt-project\target\tmp\gwt-cache-D16BCEB3891D540A576CEE39322956C5
[INFO] workDir: D:\...\IntelliJ\gwt-project\target\tmp\gwt-codeserver-3472297847544186841.tmp
[ERROR] 2017-05-28 08:56:23.951:INFO::main: Logging initialized @1942ms
[INFO] Loading Java files in de.sample.sampleproject.SampleModule.
[INFO] Module setup completed in 16346 ms
[ERROR] 2017-05-28 08:56:39.681:INFO:oejs.Server:main: jetty-9.2.14.v20151106
[ERROR] 2017-05-28 08:56:39.711:INFO:oejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@63b84321{/,null,AVAILABLE}
[ERROR] 2017-05-28 08:56:39.739:INFO:oejs.ServerConnector:main: Started ServerConnector@2dc37227{HTTP/1.1}{127.0.0.1:9876}
[ERROR] 2017-05-28 08:56:39.739:INFO:oejs.Server:main: Started @17730ms
[INFO]
[INFO] The code server is ready at http://127.0.0.1:9876/
[ERROR] 2017-05-28 08:56:40.028:INFO:oejs.Server:main: jetty-9.2.14.v20151106
[ERROR] 2017-05-28 08:56:40.339:INFO:oejsh.ContextHandler:main: Started c.g.g.d.s.j.WebAppContextWithReload@3b083d20{/,file:/D:/.../IntelliJ/gwt-project/target/gwt-project/,AVAILABLE}{D:\...\IntelliJ\gwt-project\target\gwt-project}
[ERROR] 2017-05-28 08:56:40.341:INFO:oejs.ServerConnector:main: Started ServerConnector@1c12cdcd{HTTP/1.1}{127.0.0.1:8888}
[ERROR] 2017-05-28 08:56:40.343:INFO:oejs.Server:main: Started @18334ms
[INFO] GET /clean/SampleModule
[INFO] Cleaning disk caches.
[INFO] Cleaned in 16ms.
[INFO] GET /recompile/SampleModule
[INFO] Job de.sample.sampleproject.SampleModule_1_0
[INFO] starting job: de.sample.sampleproject.SampleModule_1_0
[INFO] binding: user.agent=safari
[INFO] Compiling module de.sample.sampleproject.SampleModule
[INFO] Unification traversed 21138 fields and methods and 2036 types. 2004 are considered part of the current module and 2004 had all of their fields and methods traversed.
[INFO] Warnings in com/google/gwt/emul/java/util/Arrays.java
[INFO] [WARN] Line 1782: [unusable-by-js] Type of parameter 'd1' in 'int Arrays.1methodref$compare$Type.compare(long, long)' is not usable by but exposed to JavaScript.
[INFO] [WARN] Line 1782: [unusable-by-js] Type of parameter 'd2' in 'int Arrays.1methodref$compare$Type.compare(long, long)' is not usable by but exposed to JavaScript.
[INFO] [WARN] Suppress "[unusable-by-js]" warnings by adding a `@SuppressWarnings("unusable-by-js")` annotation to the corresponding member.
[INFO] Compiling 1 permutation
[INFO] Compiling permutation 0...
[INFO] Linking per-type JS with 1984 new/changed types.
[INFO] Source Maps Enabled
[INFO] Compile of permutations succeeded
[INFO] Compilation succeeded -- 19,773s
[INFO] Linking into D:\...\IntelliJ\gwt-project\target\tmp\gwt-codeserver-3472297847544186841.tmp\de.sample.sampleproject.SampleModule\compile-2\war\SampleModule; Writing extras to D:\...\IntelliJ\gwt-project\target\tmp\gwt-codeserver-3472297847544186841.tmp\de.sample.sampleproject.SampleModule\compile-2\extras\SampleModule
[INFO] Link succeeded
[INFO] Linking succeeded -- 1,484s
[INFO] 21,783s total -- Compile completed
编辑 2
从左到右翻译：
任务 | 记忆 | 中央处理器 | 网络 | 进程 ID | JavaScript 内存 | CSS 缓存 | 脚本缓存 | 图像缓存 | GPU-内存 | SQLite-内存
如图所示，Chrome 的运行时间比 Opera 长得多。它在超过 2GB 后崩溃。