Bat script exits unexpectedly

Question

I have the following bat script:

@echo off
set JAVA_HOME=C:\Program Files\Java\jdk1.6.0_32
set JRE_HOME=C:\Program Files\Java\jdk1.6.0_32\jre
set Path=%JAVA_HOME%\bin;%Path%

cd C:\project
mvn validate compile package db-migration:migrate -DskipTests
REM script exits here, the second line never been executed
java  -jar target/compiled_tar.jar

The last line never been executed. The "mvn..." is successfully done, the compiled_tar.jar is created, the output is:

[INFO] BUILD SUCCESS

If I insert the PAUSE command between last and previous lines the PAUSE also never been occurred. Why?

mvn might be quitting the entire process. I've had the same problem with some ant directives in the past, hope to see a solution as well. — TheZ, Jul 03 '12 at 23:14
Could do `mvn … && true` I think cmd may not have a true command see have to replace with `echo.` (almost the same, but prints a blank line). The trouble with this is you don't know if there was an error. What are the error codes for mvn? — ctrl-alt-delor, Jul 03 '12 at 23:19
Possible duplicate of *[Why does only the first line of this Windows batch file execute but all three lines execute in a command shell?](https://stackoverflow.com/questions/4036754/why-does-only-the-first-line-of-this-windows-batch-file-execute-but-all-three-li)* - it is even the same BAT file, "mvn". — Peter Mortensen, Nov 01 '18 at 16:28

score 12 · Accepted Answer · answered Jul 03 '12 at 23:17

12

mvn is itself a .bat file, so (for compatibility with MS-DOS 1.0) Windows will stop executing your batch file. To fix this, use the call command:

call mvn validate compile package db-migration:migrate -DskipTests

answered Jul 03 '12 at 23:17

Neil

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You have changed my life. Thanks! – odiszapc Jul 04 '12 at 00:41
1

The year is 2013 and I have to care about how MS-DOS 1.0 functioned 32 years ago. I don't know whether I should be sad or impressed. – Chris Nielsen Nov 27 '13 at 18:42
@ChrisNielsen 2019 now. – Jerry Chin May 06 '19 at 06:10

score 0 · Answer 2 · edited Nov 03 '18 at 17:46

Using this Maven command (set maven_batch_pause=on) will solve this perfectly:

@echo off

set JAVA_HOME=C:\Program Files\Java\jdk1.6.0_32
set JRE_HOME=C:\Program Files\Java\jdk1.6.0_32\jre
set Path=%JAVA_HOME%\bin;%Path%

set maven_batch_pause=on
cd C:\project
mvn validate compile package db-migration:migrate -DskipTests

REM The script exits here, and the second line will never be executed
java  -jar target/compiled_tar.jar

Bat script exits unexpectedly

2 Answers2