调用j9port_startup_library时访问冲突

Question

我已使用以下说明为Windows构建openj9：https://github.com/eclipse/openj9/blob/master/buildenv/Build_Instructions_V8.md#windows

当我尝试以下代码（Visual Studio 2017）时：

J9PortLibraryVersion portver;
J9PORT_SET_VERSION(&portver, J9PORT_CAPABILITY_MASK);

J9PortLibrary *portlib;
int32_t rc = j9port_allocate_library(&portver, &portlib);
if (rc != 0)
{
    printf("j9port_allocate_library failed with: %d\n", rc);
    return 1;
}

rc = j9port_create_library(portlib, &portver, sizeof(J9PortLibrary));
if (rc != 0)
{
    printf("j9port_create_library failed with %d\n", rc);
    return 1;
}

rc = j9port_startup_library(portlib);
if (rc != 0)
{
    printf("j9port_startup_library failed with %d\n", rc);
    return 1;
}
printf("j9port_startup_library: %d\n", rc);

我在j9port_startup_library：Exception thrown at 0x00007FFF0FC9430A (j9thr29.dll) in sample.exe: 0xC0000005: Access violation reading location 0x0000000000000000.

上收到了访问冲突

检查portlib显示portGlobals是NULL，我认为它不应该是static omrthread_monitor_t monitor_allocate(omrthread_t self, intptr_t policy, intptr_t policyData) { omrthread_monitor_t newMonitor; omrthread_library_t lib = self->library; 。

当我在调试器外部运行exe时，我看到以下断言（由于某种原因我在调试器中看不到）：

  

** ASSERTION FAILED ** j9prt.504 at common / j9port.c：404 Assert_PRT_true（（omrthread_self（）！=（（void *）0）））

     

** ASSERTION FAILED ** omrport.0 at ../../omr/port/common/omrport.c:515 Assert_PRT_true（（omrthread_self（）   ！=（（void *）0）））

我错过了一个步骤或导致此访问冲突的原因吗？

编辑：我使用Visual Studio 2010在Windows 7 x64上重建项目，并在VS2010中运行MCE，VS向我显示我们崩溃了

omrthread.c

<a>

self为nil因此抛出ACCESS_VIOLATION： 截图 。com / MMW59.png

Answer 1

这是在Eclipse OpenJ9 github项目中提出的：https://github.com/eclipse/openj9/issues/1564

答案是按如下方式初始化端口库：

return io.reactivex.Observable.fromIterable(objects).filter(new Predicate<SomeObject>() {
                            @Override
                            public boolean test(SomeObject aObject) throws Exception {
                                return aObject.isSomething();
                            }
                        }).first(aDefaultObject);