我在NetBeans中创建了一个新的基于maven的java项目。当我没有添加任何依赖项时，一切正常但是当我使用下面给出的pom文件（来自不同的项目，类似）时，运行屏幕直接显示BUILD SUCCESS而不列出任何System.out.print语句或记录器的任何输出。
pom文件
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.optum.cda</groupId>
<artifactId>cda</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<ctakes.version>4.0.0</ctakes.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<verbose>true</verbose>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.6.0</version>
<configuration>
<verbose>true</verbose>
<executable>java</executable>
<arguments>
<argument>-Xms512m</argument>
<argument>-Xmx512m</argument>
<argument>-XX:NewRatio=3</argument>
<argument>-XX:+PrintGCTimeStamps</argument>
<argument>-XX:+PrintGCDetails</argument>
<argument>-Xloggc:gc.log</argument>
<argument>-classpath</argument>
<classpath/>
<!--<argument>com.redstack.App</argument>-->
</arguments>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<!-- Adding cTAKES Dependecies here -->
<dependencies>
<!-- ctakes-core contains core classes, utilities, and commonly-used readers, writers and analysis engines. -->
<!-- ctakes-core will pull from maven central basic requirements: uima, uimafit, cleartk, type system ... -->
<!-- All other modules require ctakes-core. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-core</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-pos-tagger tags parts of speech for tokens in text. -->
<!-- ctakes-pos-tagger is required for ctakes-dictionary-lookup and ctakes-dictionary-lookup-fast. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-pos-tagger</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-chunker chunks tokens with parts of speech into phrases. -->
<!-- ctakes-chunker is required for the old ctakes-dictionary-lookup. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-chunker</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-lvg generates lexical variants of tokens in text. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-lvg</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-dictionary-lookup-fast discovers concepts in text and normalizes them to standard codes. -->
<!-- ctakes-dictionary-lookup-fast is much improved over the original ctakes-dictionary-lookup. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-dictionary-lookup-fast</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-assertion contains rule-based and machine-learning engines to discover entity attributes. -->
<!-- attributes: polarity, uncertainty, history_of, conditional, generic, subject -->
<!-- ctakes-assertion discovers more attributes than the ctakes-ne-contexts module. -->
<!-- ctakes-assertion will add ctakes-constituency-parser and ctakes-dependency-parser modules. -->
<!-- ctakes-assertion module requires mitre libraries that are not in maven central. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-assertion</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-ne-contexts contains rule-based engines to discover entity attributes. -->
<!-- attributes: polarity, status -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-ne-contexts</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-drug-ner discovers Medications and related attributes such as strength, dosage, frequency, etc.-->
<!-- ctakes-drug-ner will add ctakes-chunker, ctakes-lvg, ctakes-dictionary-lookup,
ctakes-context-tokenizer, ctakes-ne-contexts modules. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-drug-ner</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-ytex and ctakes-ytex-uima are a collection of ctakes extensions. -->
<!-- ctakes-ytex-uima will add ctakes-pos-tagger, ctakes-chunker, ctakes-lvg,
ctakes-dictionary-lookup, ctakes-context-tokenizer, ctakes-constituency-parser,
ctakes-dependency-parser, ctakes-assertion, ctakes-ne-contexts. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-ytex</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-clinical-pipeline contributes very little on its own, but loads many other modules. -->
<!-- ctakes-temporal will add ctakes-preprocessor, ctakes-pos-tagger, ctakes-chunker, ctakes-lvg,
ctakes-dictionary-lookup-fast, ctakes-context-tokenizer, ctakes-constituency-parser,
ctakes-dependency-parser, ctakes-assertion, ctakes-ne-contexts, ctakes-drug-ner, ctakes-ytex-uima. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-clinical-pipeline</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-relation-extractor can extract relations between entities such as location and degree. -->
<!-- ctakes-relation-extractor will add ctakes-pos-tagger, ctakes-chunker, ctakes-lvg,
ctakes-dictionary-lookup, ctakes-context-tokenizer, ctakes-constituency-parser,
ctakes-dependency-parser, ctakes-ne-contexts. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-relation-extractor</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-temporal discovers entities, temporal expressions, temporal relations,
and document-creation-time relativity. -->
<!-- ctakes-temporal will add ctakes-pos-tagger, ctakes-chunker, ctakes-lvg,
ctakes-dictionary-lookup-fast, ctakes-context-tokenizer, ctakes-constituency-parser,
ctakes-dependency-parser, ctakes-relation-extractor, ctakes-clinical-pipeline. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-temporal</artifactId>
<version>${ctakes.version}</version>
</dependency>
<!-- ctakes-coreference discovers coreferent entities in text. -->
<!-- ctakes-coreference will add ctakes-constituency-parser, ctakes-dictionary-lookup, ctakes-assertion,
ctakes-temporal and a large UMLS database. -->
<dependency>
<groupId>org.apache.ctakes</groupId>
<artifactId>ctakes-coreference</artifactId>
<version>${ctakes.version}</version>
</dependency>
</dependencies>
<!-- End of cTAKES Dependencies -->
</project>
运行主文件时得到的输出：
cd C:\Users\tdas1006\Documents\NetBeansProjects\cda; "JAVA_HOME=C:\\Program Files\\Java\\jdk1.8.0_131" cmd /c "\"\"C:\\Program Files\\NetBeans 8\\NetBeans 8.2\\java\\maven\\bin\\mvn.bat\" -Dexec.args=\"-classpath %classpath com.optum.cda.main.Test\" -Dexec.executable=\"C:\\Program Files\\Java\\jdk1.8.0_131\\bin\\java.exe\" -Dexec.classpathScope=runtime -Dmaven.ext.class.path=\"C:\\Program Files\\NetBeans 8\\NetBeans 8.2\\java\\maven-nblib\\netbeans-eventspy.jar\" -Dfile.encoding=UTF-8 org.codehaus.mojo:exec-maven-plugin:exec\""
Running NetBeans Compile On Save execution. Phase execution is skipped and output directories of dependency projects (with Compile on Save turned on) will be used instead of their jar artifacts.
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building cda 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.6.0:exec (default-cli) @ cda ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.353s
[INFO] Finished at: Thu Jun 22 01:41:42 IST 2017
[INFO] Final Memory: 11M/122M
[INFO] ------------------------------------------------------------------------
可能是什么问题？
答案 0 :(得分：0)
我找到了一个解决方案，但我真的不明白它为什么会起作用。也许有人可以指出。
我所做的是更改maven目标执行的参数（org.codehaus.mojo：exec-maven-plugin：exec）。以前它使用java来执行导致问题的类。当我切换到使用javaw而不是java作为可执行文件时，一切正常，我不知道为什么！
我更改了nbactions.xml文件以在目标中包含javaw。编辑过的文件：
<?xml version="1.0" encoding="UTF-8"?>
<actions>
<action>
<actionName>run</actionName>
<packagings>
<packaging>jar</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:exec</goal>
</goals>
<properties>
<exec.args>-classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
</properties>
</action>
<action>
<actionName>run.single.main</actionName>
<packagings>
<packaging>*</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:exec</goal>
</goals>
<properties>
<exec.args>-classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
<exec.classpathScope>${classPathScope}</exec.classpathScope>
</properties>
</action>
<action>
<actionName>debug</actionName>
<packagings>
<packaging>jar</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:1.2.1:exec</goal>
</goals>
<properties>
<exec.args>-Xdebug -Xrunjdwp:transport=dt_socket,server=n,address=${jpda.address} -classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
<jpda.listen>true</jpda.listen>
</properties>
</action>
<action>
<actionName>debug.single.main</actionName>
<packagings>
<packaging>*</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:1.2.1:exec</goal>
</goals>
<properties>
<exec.args>-Xdebug -Xrunjdwp:transport=dt_socket,server=n,address=${jpda.address} -classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
<exec.classpathScope>${classPathScope}</exec.classpathScope>
<jpda.listen>true</jpda.listen>
</properties>
</action>
<action>
<actionName>profile</actionName>
<packagings>
<packaging>jar</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:1.2.1:exec</goal>
</goals>
<properties>
<exec.args>-classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
</properties>
</action>
<action>
<actionName>profile.single.main</actionName>
<packagings>
<packaging>*</packaging>
</packagings>
<goals>
<goal>process-classes</goal>
<goal>org.codehaus.mojo:exec-maven-plugin:1.2.1:exec</goal>
</goals>
<properties>
<exec.args>-classpath %classpath ${packageClassName}</exec.args>
<exec.executable>javaw</exec.executable>
<exec.classpathScope>${classPathScope}</exec.classpathScope>
</properties>
</action>
</actions>