2

我尝试--static -jar与 Ceylon 编译的 fat jar 一起使用：

native-image --static -jar default.jar

（default.jar是一个胖罐子生产的ceylon fat-jar。）

但我有UnsupportedFeatureException一句话java.lang.Class.getConstantPool()是不支持的。

ceylon 程序只是一个简单的 hello world（打印出一个字符串）。

Ceylon 和 GraalVM 版本：

ceylon version 1.3.3 0d594b3 (Contents May Differ)

java version "1.8.0_202"
Java(TM) SE Runtime Environment (build 1.8.0_202-b08)
Java HotSpot(TM) GraalVM EE 1.0.0-rc13 (build 25.202-b08-jvmci-0.55, mixed mode)

完整的错误日志：

Error: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: Unsupported method java.lang.Class.getConstantPool() is reachable: The declaring class of this element has been substituted, but this element is not present in the substitution class
To diagnose the issue, you can add the option --report-unsupported-elements-at-runtime. The unsupported element is then reported at run time when it is accessed the first time.
Detailed message:
Error: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: Unsupported method java.lang.Class.getConstantPool() is reachable: The declaring class of this element has been substituted, but this element is not present in the substitution class
To diagnose the issue, you can add the option --report-unsupported-elements-at-runtime. The unsupported element is then reported at run time when it is accessed the first time.
Trace: 
        at parsing java.lang.System$2.getConstantPool(System.java:1227)
Call path from entry point to java.lang.System$2.getConstantPool(Class): 
        at java.lang.System$2.getConstantPool(System.java:1227)
        at java.lang.reflect.Method.getDefaultValue(Method.java:609)
        at com.redhat.ceylon.model.loader.impl.reflect.mirror.ReflectionMethod.isDefault(ReflectionMethod.java:263)
        at com.redhat.ceylon.model.loader.AbstractModelLoader.addMethod(AbstractModelLoader.java:3810)
        at com.redhat.ceylon.model.loader.AbstractModelLoader.complete(AbstractModelLoader.java:3247)
        at com.redhat.ceylon.model.loader.AbstractModelLoader.access$1100(AbstractModelLoader.java:103)
        at com.redhat.ceylon.model.loader.AbstractModelLoader$18.run(AbstractModelLoader.java:2616)
        at java.lang.Shutdown.runHooks(Shutdown.java:123)
        at java.lang.Shutdown.sequence(Shutdown.java:167)
        at java.lang.Shutdown.shutdown(Shutdown.java:234)
        at com.oracle.svm.core.jdk.RuntimeSupport.shutdown(RuntimeSupport.java:181)
        at com.oracle.svm.core.JavaMainWrapper.run(JavaMainWrapper.java:177)
        at com.oracle.svm.core.code.IsolateEnterStub.JavaMainWrapper_run_5087f5482cc9a6abc971913ece43acb471d2631b(generated:0)

Error: Use -H:+ReportExceptionStackTraces to print stacktrace of underlying exception
Error: Processing image build request failed
4

1 回答 1

2

至少对于由 生成的简单“hello world”程序ceylon new hello-world，添加--report-unsupported-elements-at-runtime选项（如错误消息所示）足以使程序运行：

$ ./com.example.helloworld-1.0.0
Hello, World!

我依稀记得不久前ceylon.formatter在 .

于 2019-03-08T17:58:58.313 回答