无法在java.library.path上找到本机库
无法在java.library.path上找到本机库
提问于 2022-07-11 16:56:01
因此，我试图运行一个非常简单的java程序，在mac上使用IBM。程序识别JAR文件，但无论我指向何处，它似乎都找不到本机实现。
Java程序：
import ilog.cplex.IloCplex;
public class CPLEXTester {
public static void main(String[] args) {
System.out.println(System.getProperty("java.library.path"));
try {
new IloCplex();
}
catch(Exception e) {
e.printStackTrace();
}
}
}以intellij表示的输出：
/Users/bradley/Library/Java/JavaVirtualMachines/openjdk-18.0.1.1/Contents/Home/bin/java -Dvisualvm.id=27090629736541 -javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=63865:/Applications/IntelliJ IDEA.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Users/bradley/Desktop/code/cplexTester/out/production/cplexTester:/Users/bradley/Desktop/code/adaje/code/lib/java/cplex-12.9.jar CPLEXTester
/Users/bradley/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
java.lang.UnsatisfiedLinkError: no cplex1290 in java.library.path: /Users/bradley/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
java.library.path must point to the directory containing the CPLEX shared library
try invoking java with java -Djava.library.path=...
Exception in thread "main" java.lang.UnsatisfiedLinkError: 'long ilog.cplex.Cplex.CPXopenCPLEX(int[])'
at ilog.cplex.Cplex.CPXopenCPLEX(Native Method)
at ilog.cplex.CplexI.init(CplexI.java:7083)
at ilog.cplex.CplexI.<init>(CplexI.java:856)
at ilog.cplex.IloCplex.<init>(IloCplex.java:12042)
at ilog.cplex.IloCplex.<init>(IloCplex.java:12057)
at CPLEXTester.main(CPLEXTester.java:7)我尝试使用的CPLEX本机库位置是/ library /Java/Extensions。如下所示，目录中有libcplex1290.jnilib和libcplex1290.dylib：
Java只是不断地抛出UnsatisfiedLinkError。当我显式地尝试在zsh中链接和运行下面的命令时，我得到了相同的输出：
java -Djava.library.path=/Library/Java/Extensions -cp ~/Desktop/code/lib/java/cplex-12.9.jar CPLEXTester.java另一个有趣的注意是，当我尝试加载库时，即：
public class CPLEXTester {
public static void main(String[] args) {
System.load("/Library/Java/Extensions/libcplex1290.jnilib");
}
}我得到了另一个UnsatisfiedLinkError：
/Users/bradley/Library/Java/JavaVirtualMachines/openjdk-18.0.1.1/Contents/Home/bin/java -Dvisualvm.id=27158373972541 -javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=63876:/Applications/IntelliJ IDEA.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Users/bradley/Desktop/code/cplexTester/out/production/cplexTester:/Users/bradley/Desktop/code/adaje/code/lib/java/cplex-12.9.jar CPLEXTester
Exception in thread "main" java.lang.UnsatisfiedLinkError: Can't load library: /Library/Java/Extensions/libcplex1290.jnilib
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2398)
at java.base/java.lang.Runtime.load0(Runtime.java:785)
at java.base/java.lang.System.load(System.java:1979)
at CPLEXTester.main(CPLEXTester.java:5)有没有人对如何解决这一问题有任何想法？提前谢谢你！
这是我的“关于这个Mac”：
Java基本设置：
java -XshowSettings:properties -version
Property settings:
file.encoding = UTF-8
file.separator = /
ftp.nonProxyHosts = local|*.local|169.254/16|*.169.254/16
http.nonProxyHosts = local|*.local|169.254/16|*.169.254/16
java.class.path =
java.class.version = 62.0
java.home = /Users/bradley/Library/Java/JavaVirtualMachines/openjdk-18.0.1.1/Contents/Home
java.io.tmpdir = /var/folders/6w/qsmx4xpn7vs528v_7qvm_k9m0000gq/T/
java.library.path = /Users/bradley/Library/Java/Extensions
/Library/Java/Extensions
/Network/Library/Java/Extensions
/System/Library/Java/Extensions
/usr/lib/java
.
java.runtime.name = OpenJDK Runtime Environment
java.runtime.version = 18.0.1.1+2-6
java.specification.name = Java Platform API Specification
java.specification.vendor = Oracle Corporation
java.specification.version = 18
java.vendor = Oracle Corporation
java.vendor.url = https://java.oracle.com/
java.vendor.url.bug = https://bugreport.java.com/bugreport/
java.version = 18.0.1.1
java.version.date = 2022-04-22
java.vm.compressedOopsMode = Zero based
java.vm.info = mixed mode, sharing
java.vm.name = OpenJDK 64-Bit Server VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Oracle Corporation
java.vm.specification.version = 18
java.vm.vendor = Oracle Corporation
java.vm.version = 18.0.1.1+2-6
jdk.debug = release
line.separator = \n
native.encoding = UTF-8
os.arch = aarch64
os.name = Mac OS X
os.version = 12.4
path.separator = :
socksNonProxyHosts = local|*.local|169.254/16|*.169.254/16
sun.arch.data.model = 64
sun.boot.library.path = /Users/bradley/Library/Java/JavaVirtualMachines/openjdk-18.0.1.1/Contents/Home/lib
sun.cpu.endian = little
sun.io.unicode.encoding = UnicodeBig
sun.java.launcher = SUN_STANDARD
sun.jnu.encoding = UTF-8
sun.management.compiler = HotSpot 64-Bit Tiered Compilers
sun.stderr.encoding = UTF-8
sun.stdout.encoding = UTF-8
user.country = US
user.dir = /Users/bradley
user.home = /Users/bradley
user.language = en
user.name = bradley
openjdk version "18.0.1.1" 2022-04-22
OpenJDK Runtime Environment (build 18.0.1.1+2-6)
OpenJDK 64-Bit Server VM (build 18.0.1.1+2-6, mixed mode, sharing)回答 1
Stack Overflow用户
发布于 2022-07-12 05:29:30
看上去你在运行苹果的M1硅。我认为CPLEX还没有为那个忏悔者设置一个端口。鉴于CPLEX12.9是在2019年发布的，在苹果M1芯片发布前一年就发布了，我很确定CPLEX12.9不会在M1上运行。
IBM社区网站的一段话说：
我们只支持Mac上的英特尔芯片，不支持M1 arm64芯片。因此，要使CPLEX在您的机器上工作，您必须要求它使用模拟的英特尔模式，通过“-x86_64 -x86_64 make"，"arch -x86_64 gcc”.
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/72942063
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