The "Java. Lang. outofmemoryerror: Java heap space" problem occurs during Maven compilation and the solution is as follows:

Link: http://blog.csdn.net/kongxx/article/details/7029430

Recently, the build of some original engineering in Porting ranges from ant to maven. Because the project is too large, many tree-structured projects have been created. At this time, during compilation, "Java. lang. outofmemoryerror: Java heap space "error, resulting in compilation failure. This error has obviously occurred because compilation is not enough to allocate xmx to JVM, however, specifying-xmx1024m directly after the MVN command line in Maven does not work. To make the settings take effect, you need to set the maven environment parameters before compilation, as shown below:

Export maven_opts = '-xms256m-xmx1024m'Then run the command MVN to compile the command.