IntelliJ IDEA 13调试器不要在Java中针对maven项目的断点停止 [英] IntelliJ IDEA 13 debugger don't stop on breakpoint in java for maven project

问题描述

我有一个断点在 System.out.println（test）命令。
我相信执行命令是由于我看到打印的字符串test。
但是断点被忽略。

断点是一个红色的圆圈，没有刻度或交叉。
我认为这是一个问题，当IDEA认为该类没有加载，而它是，因为该命令被执行。

我可以复制到各种情况：

1. 当我按调试（使用maven配置安装exec：exec -DforkMode = never ）




2. 远程调试 - 我在调试模式下在控制台中运行maven目标：

   
   
   

   mvnDebug install exec：exec -DforkMode = never

   
   
   

   或

   
   
   

   mvnDebug install exec：exec

   
   
   

   IDEA中的远程调试配置：

   
   
   
   
   
   • 运行远程JVM的参数：
     
     -agentlib：jdwp = transport = dt_socket，server = y， suspend = n，address = 8000
   
   
   • 对于JDK 1.4.X：
     
     -Xdebug -Xrunjdwp：transport = dt_socket，server = y，suspend = n，address = 8000
   
   
   • 传输：Socket
   
   
   • 调试器模式：
   
   
   • 主机：localhost
   
   
   • 端口：8000

在这两种情况下，调试器只打印连接到目标VM，地址： localhost：8000'，transport：'socket'

我也尝试过文件>无效缓存/重新启动
并清理构建，但断点仍然被忽略。

配置：

Ubuntu 13.10

IntelliJ IDEA终极构建133.944

Apache Maven 3.0.4

Java版本：1.7.0_51，供应商： Oracle Corporation

操作系统名称：linux，版本：3.11.0-17-generic，arch：amd64，family：unix

编辑：
pom.xml的相关部分：

 < plugin> 
< groupId> org.codehaus.mojo< / groupId> 
< artifactId> exec-maven-plugin< / artifactId> 
< version> 1.2.1< / version> 
< configuration> 
< executable> java< / executable> 
< arguments> 
< argument> -D  -  secret  - 。server.configuration = / usr / local / etc< / argument> 
< argument> -classpath< / argument>< classpath /> 
< argument> com .-- secret  - 。Server< / argument> 
< / arguments> 
< / configuration> 
< / plugin> 
  

解决方案

我的解决方案：

考虑到您有一个依赖于系统属性的程序：

  package com.mycompany.app; 
 
 
 public class App {
 
 private static final String GREETING = System.getProperty（greeting，Hi）; 
 
 public static void main（String [] args）{
 int x = 10; 
 System.out.println（GREETING）; 
} 
} 
  

您正在使用 exec：exec ：

  mvn exec：exec -Dexec.executable = java-Dexec。 args = -classpath％classpath -Dgreeting = \Hello\com.mycompany.app.App
  

Maven c code code code $ c $

更改您的 exec：exec 目标以启用远程调试。我正在使用 suspend = y 和 server = n ，但可以自由配置

最后运行上面的 exec：exec 行，并随意调试应用程序：

---

所以基本上你需要两个运行/调试配置，使其工作： / p>

1. 具有系统属性和JDWP的 exec：exec 的Maven配置代理配置：

   
   
   




2. 远程配置作为客户端。

I have a breakpoint on a line where is the System.out.println("test") command. I believe that the command is reached by execution because I see the printed string "test". But the breakpoint is ignored.

Breakpoint is a red circle all the time, without a tick or cross. I think this is an issue when IDEA thinks the class is not loaded, while it is, because the command is executed.

I can reproduce it in various circumstances:

1. When I press debug (with maven configuration install exec:exec -DforkMode=never)

2. Remote debugging - I run maven goal in debug mode in the console:

   mvnDebug install exec:exec -DforkMode=never

   or

   mvnDebug install exec:exec

   remote debug configuration in IDEA:

   • Arguments for running remote JVM:
     -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8000
   • For JDK 1.4.X:
     -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000
   • Transport: Socket
   • Debugger mode: Attach
   • Host: localhost
   • Port: 8000

In both cases the debugger only prints "Connected to the target VM, address: 'localhost:8000', transport: 'socket'"

I have also tried File > Invalidate Caches / Restart and clean build, but the breakpoint is still ignored.

Configuration:

Ubuntu 13.10
IntelliJ IDEA Ultimate build 133.944
Apache Maven 3.0.4
Java version: 1.7.0_51, vendor: Oracle Corporation
OS name: "linux", version: "3.11.0-17-generic", arch: "amd64", family: "unix"

EDIT: relevant part of pom.xml:

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>exec-maven-plugin</artifactId>
  <version>1.2.1</version>
  <configuration>
    <executable>java</executable>
      <arguments>
        <argument>-D--secret--.server.configuration=/usr/local/etc</argument>
        <argument>-classpath</argument><classpath/>
        <argument>com.--secret--.Server</argument>
      </arguments>
  </configuration>
</plugin>

解决方案

My solution:

Considering that you have a program that depends on system properties:

package com.mycompany.app;


public class App {

    private static final String GREETING = System.getProperty("greeting", "Hi");

    public static void main(String[] args) {
        int x = 10;
        System.out.println(GREETING);
    }
}

And you are running it with exec:exec:

mvn exec:exec -Dexec.executable=java "-Dexec.args=-classpath %classpath -Dgreeting=\"Hello\" com.mycompany.app.App"

With some "inception magic" we can debug the process started by Mavenexec:exec.

Maven

Change your exec:exec goal to enable remote debugging. I'm using suspend=y and server=n, but feel free to configure the JDWP Agent as you please:

-agentlib:jdwp=transport=dt_socket,server=n,address=127.0.0.1:8000,suspend=y

This will not be passed directly to the maven JVM, instead it will be passed to exec.args which will be used by exec:exec:

mvn exec:exec -Dexec.executable=java "-Dexec.args=-classpath %classpath -agentlib:jdwp=transport=dt_socket,server=n,address=127.0.0.1:8000,suspend=y -Dgreeting=\"Hello\" com.mycompany.app.App"

IntelliJ IDEA

Create a Remote configuration (again I'm using a Listen strategy. You should adjust it according to your process settings):

Now toggle your breakpoints and Debug your remote configuration. Using the settings above it will wait until your process starts:

Finally run the exec:exec line above and debug your application at will:

---

So basically you need two "Run/Debug" configurations for this to work:

1. A Maven configuration for exec:exec with the system properties and JDWP agent configuration:

2. The remote configuration acting as a client.

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