我知道还有其他一些问题，其中有人遇到了问题，因为他们得到了类似的错误编译，但这并不是完全相同的错误。在他们的情况下，问题似乎是Maven没有正确的编译器路径。就我而言，问题似乎在于某个地方写有错误的类/类型。
编译时的结果：
COMPILATION ERROR :
-------------------------------------------------------------
Failure executing javac, but could not parse the error:
An exception has occurred in the compiler (1.8.0_20). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.ClassCastException: com.sun.tools.javac.code.Type$ErrorType cannot be cast to com.sun.tools.javac.code.Type$ArrayType
at com.sun.tools.javac.comp.Attr$TypeAnnotationsValidator.validateAnnotatedType(Attr.java:4637)
at com.sun.tools.javac.comp.Attr$TypeAnnotationsValidator.visitMethodDef(Attr.java:4485)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.Attr$TypeAnnotationsValidator.visitClassDef(Attr.java:4552)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
at com.sun.tools.javac.comp.Attr.validateTypeAnnotations(Attr.java:4451)
at com.sun.tools.javac.code.TypeAnnotations$2.run(TypeAnnotations.java:142)
at com.sun.tools.javac.comp.Annotate.flush(Annotate.java:155)
at com.sun.tools.javac.comp.Annotate.enterDone(Annotate.java:129)
at com.sun.tools.javac.comp.Enter.complete(Enter.java:512)
at com.sun.tools.javac.comp.Enter.main(Enter.java:471)
at com.sun.tools.javac.main.JavaCompiler.enterTrees(JavaCompiler.java:982)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:857)
at com.sun.tools.javac.main.Main.compile(Main.java:523)
at com.sun.tools.javac.main.Main.compile(Main.java:381)
at com.sun.tools.javac.main.Main.compile(Main.java:370)
at com.sun.tools.javac.main.Main.compile(Main.java:361)
at com.sun.tools.javac.Main.compile(Main.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompiler.java:554)
at org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:161)
at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:605)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
ErrorType（https://docs.oracle.com/javase/7/docs/api/javax/lang/model/type/ErrorType.html）表示某种类或接口等未正确编写且无法建模。
ArrayType仅表示它是一个数组。因此，很可能这意味着我在某个地方使用了一个不完整/缺失的类作为数组。
这也位于visitMethodDef（）-> validateAnnotatedType（）中，这意味着这可能是方法的返回类型/参数？
可能是什么原因造成的？为什么编译器不说这在源代码中发生了什么地方？
我使用Maven 2.4和JDK 1.8。我通常在编译时没有任何问题。
这是我的maven pom.xml文件的摘要：
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>PATH.TO.MAIN.CLASS</mainClass>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.fxml</include>
<include>**/*.css</include>
<include>**/*.properties</include>
<include>**/*.png</include>
<include>**/*.gif</include>
<include>**/*.xml</include>
</includes>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
我还尝试使用Maven的更多输出进行编译，但没有发现任何有用的检测错误的方法。
为什么编译器不显示不完整类型在哪个文件中？如何以显示哪个文件有错误的方式进行编译？是否可以验证单个文件以发现此类错误？
一个类似错误在这里有一个错误报告（https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=2ahUKEwix2evZmt3cAhXoNJoKHWQ7BXAQFjABegQICRAB&url=https%3A%2F%2Fnetbeans.org%2Fbugzilla%2Fshow_bug.cgi%3Fid%3D247421&usg=AOvVaw3ulnafW3ET1VWqw43wAEC0），其中有人试图组合列表/数组但语法不正确。但是有没有办法找出哪个文件包含错误？
答案 0 :(得分：0)
我找到了问题所在。
我有一个方法声明：
public synchronized static T[] <T> foo(...)
代替
public synchronized static <T> T[] foo(...)
令人难以置信的是，编译器甚至没有说出它是哪个源文件。