java - JNA - Ubuntu 上的 java.lang.UnsatisfiedLinkError

Question

我正在尝试在 Amazon EC2 实例上调用我在 Ubuntu 上的共享库相同的代码在 Windows 上可以 100% 正常工作，但在 Ubuntu 上 - 我在尝试运行它时收到 java.lang.UnsatisfiedLinkError

当我在我的共享库上运行 ldd 时 - 所有依赖项似乎都得到满足

root@ip-172-31-14-36:/var/lib/tomcat8/conf# ldd /tmp/dll/linux/v1/release/myConvertor.so
        linux-vdso.so.1 =>  (0x00007ffed4ffd000)
        libQt5Widgets.so.5 => /tmp/dll/linux/v1/release/libQt5Widgets.so.5 (0x00007fa81daff000)
        libQt5Gui.so.5 => /tmp/dll/linux/v1/release/libQt5Gui.so.5 (0x00007fa81d2ec000)
        libQt5Xml.so.5 => /tmp/dll/linux/v1/release/libQt5Xml.so.5 (0x00007fa81d0b0000)
        libQt5Network.so.5 => /tmp/dll/linux/v1/release/libQt5Network.so.5 (0x00007fa81cd57000)
        libQt5Core.so.5 => /tmp/dll/linux/v1/release/libQt5Core.so.5 (0x00007fa81c610000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fa81c3e6000)
        libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fa81c064000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fa81bd5a000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fa81bb44000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fa81b77a000)
        libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007fa81b526000)
        libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007fa81b324000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fa81b11c000)
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007fa81ae0a000)
        libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007fa81abf8000)
        libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fa81a8be000)
        libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007fa81a64b000)
        libicui18n.so.54 => /usr/lib/libicui18n.so.54 (0x00007fa81a1f7000)
        libicuuc.so.54 => /usr/lib/libicuuc.so.54 (0x00007fa819e66000)
        libicudata.so.54 => /usr/lib/libicudata.so.54 (0x00007fa81843c000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fa818238000)
        /lib64/ld-linux-x86-64.so.2 (0x0000559ebb9c1000)
        libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007fa81802f000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fa817dbf000)
        libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fa817b9c000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007fa817973000)
        libxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 (0x00007fa817770000)
        libxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 (0x00007fa81756c000)
        libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007fa817365000)
        libxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007fa817162000)
        libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007fa816f32000)
        libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007fa816d2f000)
        libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007fa816b29000)
        libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007fa816926000)
        libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007fa81670d000)
        libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007fa816508000)
        libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007fa816301000)
        libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007fa8160f0000)
        libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007fa815eeb000)
        libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007fa815ce5000)

我加载共享库的代码如下

String dllLocation = "/tmp/dll/linux/v1/release/myConvertor.so";
canvasConversionInterface = (CanvasConversionInterface) Native.loadLibrary(dllLocation, CanvasConversionInterface.class);

我在 tomcat 上设置了以下系统属性

jna.library.path="/tmp/dll/linux/v1/release"
jna.debug_load=true

这是我尝试调用上面那行代码加载共享库时遇到的错误

Looking in classpath from WebappClassLoader
  context: ROOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@52d278a0
 for /com/sun/jna/linux-x86-64/libjnidispatch.so
Found library resource at jar:file:/var/lib/tomcat8/webapps/ROOT/WEB-INF/lib/jna-4.5.0.jar!/com/sun/jna/linux-x86-64/libjnidispatch.so
Looking for library '/tmp/dll/linux/v1/release/myConvertor.so'
Adding paths from jna.library.path: "/tmp/dll/linux/v1/release"
Trying /tmp/dll/linux/v1/release/myConvertor.so
Adding system paths: [/usr/lib/x86_64-linux-gnu, /lib/x86_64-linux-gnu, /lib64, /usr/lib, /lib, /usr/lib/x86_64-linux-gnu/libfakeroot, /usr/lib/x86_64-linux-gnu/mesa]
Trying /tmp/dll/linux/v1/release/myConvertor.so
Looking for version variants
Looking in classpath from WebappClassLoader
  context: ROOT
  delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@52d278a0
 for /tmp/dll/linux/v1/release/myConvertor.so
2017-10-02 13:27:21 [jmsNewPublicationQueueMessageListenerContainer-1] WARN  o.s.j.l.DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
java.lang.UnsatisfiedLinkError: Unable to load library '/tmp/dll/linux/v1/release/myConvertor.so': Native library (tmp/dll/linux/v1/release/myConvertor.so) not found in resource path ([...

...

我可以验证上面提到的所有路径都是准确的

任何人都可以提供任何关于我接下来可以尝试什么来尝试并使它正常工作的想法吗？

谢谢达米安

Answer 1

问题出在共享库上，它使用的是 OpenCV在与 C++ 开发人员交谈后 - 我们发现可以从库中删除 OpenCV 依赖项一旦我们删除它并再次尝试 - 一切都很完美