Eclipse some tips

1: Testing a test overflow, modify the heap memory size

// 模拟内存溢出 -Xms10m -Xmx10m
    private static void mockOOM() {
        List list = new ArrayList();
        for(int i = 0; i < 1000000; i++) {
            list.add(new Object());
        }
    }

Right inside the program run as in the run configuration settings:

-XX:+HeapDumpOnOutOfMemoryError -Xms10m -Xmx10m