netlogo - 在 Jython 中打开 NetLogo 模型时抛出 Java 非法参数异常

Question

我正在尝试使用在 OS X El Capitan (10.11.6) 上运行的 Jython 2.7.0（在 Java 1.8.0_131 上）来控制 NetLogo 的 API 来运行实验。在尝试运行以下代码时：

import site
site.addsitedir("/Users/nqe/NetLogo/NetLogo 6.0.1/Java/")
import org.nlogo.headless.HeadlessWorkspace as hw

workspace = hw.newInstance()
workspace.open("models/Sample Models/Earth Science/Fire.nlogo")
workspace.command("set density 62")
workspace.command("random-seed 0")
workspace.command("setup")
workspace.command("repeat 50 [ go ]")
print (workspace.report("burned-trees"))

workspace.dispose()

我收到以下错误：

at scala.Predef$.require(Predef.scala:264)
at org.nlogo.generate.PrimitiveCache$.read$1(PrimitiveCache.scala:22)
at org.nlogo.generate.PrimitiveCache$.$anonfun$getClassReader$1(PrimitiveCache.scala:26)
at scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:80)
at org.nlogo.generate.PrimitiveCache$.getClassReader(PrimitiveCache.scala:26)
at org.nlogo.generate.PeepholeSafeChecker.processClass(PeepholeSafeChecker.scala:49)
at org.nlogo.generate.PeepholeSafeChecker.isSafe(PeepholeSafeChecker.scala:42)
at org.nlogo.generate.Generator$InstructionGenerator.generateInstruction(Generator.scala:190)
at org.nlogo.generate.Generator$InstructionGenerator.generateBodyMethod(Generator.scala:124)
at org.nlogo.generate.Generator$InstructionGenerator.generate(Generator.scala:99)
at org.nlogo.generate.Generator.org$nlogo$generate$Generator$$recurse(Generator.scala:29)
at org.nlogo.generate.Generator.$anonfun$recurse$1(Generator.scala:31)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:234)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:193)
at scala.collection.TraversableLike.map$(TraversableLike.scala:234)
at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:193)
at org.nlogo.generate.Generator.org$nlogo$generate$Generator$$recurse(Generator.scala:31)
at org.nlogo.generate.Generator.$anonfun$generate$1(Generator.scala:25)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:234)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:193)
at scala.collection.TraversableLike.map$(TraversableLike.scala:234)
at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:193)
at org.nlogo.generate.Generator.generate(Generator.scala:25)
at org.nlogo.compile.CompilerMain$.assembleProcedure(CompilerMain.scala:79)
at org.nlogo.compile.CompilerMain$.$anonfun$compile$2(CompilerMain.scala:55)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:234)
at scala.collection.immutable.List.foreach(List.scala:378)
at scala.collection.TraversableLike.map$(TraversableLike.scala:234)
at scala.collection.immutable.List.map(List.scala:284)
at org.nlogo.compile.CompilerMain$.compile(CompilerMain.scala:55)
at org.nlogo.compile.Compiler.compileProgram(Compiler.scala:52)
at org.nlogo.headless.HeadlessModelOpener.openFromModel(HeadlessModelOpener.scala:54)
at org.nlogo.headless.HeadlessWorkspace.openModel(HeadlessWorkspace.scala:532)
at org.nlogo.headless.HeadlessWorkspace.open(HeadlessWorkspace.scala:499)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)

java.lang.IllegalArgumentException: java.lang.IllegalArgumentException: requirement failed

如果“导入站点”部分不清楚，我做了以下操作：

创建一个 jython 脚本，将“/Users/nqe/NetLogo/NetLogo 6.0.1/Java/”中的所有 .jar 文件写入 .pth 文件。
然后我将这个 .pith 文件放入带有 .jar 文件的所述 .../Java/ 目录中。
这允许我在需要导入 NetLogo 的各种 API 功能时从 sys.path 访问所有 .jar 依赖项。

我无法弄清楚究竟是什么导致了这个错误，因为在 python 交互模式下运行时，我能够使用 hw.newInstance() 命令成功创建 NetLogo JVM 的新实例（我可以看到一个 Java 图标弹出时运行此代码），并且例如，如果我未能指定 url，则 open 命令会引发相应的错误。

因此，我认为这可能与我的 JVM 配置不正确有关，所以我尝试了一些方法。

首先，我检查了我是否能够在此处找到以无头模式控制 NetLogo API 的 java 示例：https ://github.com/NetLogo/NetLogo/wiki/Controlling-API 。我能够使用以下命令运行此处给出的代码：

javadir=/Users/nqe/NetLogo/ControlAPI/
netjardir=/Users/nqe/NetLogo/NetLogo\ 6.0.1/Java/netlogo-mac-app.jar

javaname=Example1

javac -cp "${javadir}":"${netjardir}" $javaname.java
java -cp "${javadir}":"${netjardir}" $javaname

无需手动更改任何 JVM 设置。尽管如此，我还是继续尝试在运行 jython 代码时更改 JVM 设置中的内容，例如文档和扩展的路径，尤其是 ./lib 目录。不幸的是，指定了以下 JVM 设置：

-Djava.library.path=~/JRE/Contents/Home/jre/lib/

无助于事业。请注意，这里的 ~ 是 NetLogo 6.0.1 目录中的缩写，这是我能找到的唯一 lib 目录。

最后，我不同意这一点：当我仅指定 netlogo-mac-app.jar 的路径时尝试运行上述 jython 脚本时，我无法导入无头类的东西。因此，在仅指定这个 .jar 类路径的同时编译/运行 java 可能会以某种方式访问 NetLogo 工作所需的一些有用的元数据（我不知道这是否可能以我的 Java 背景水平）。

想到这里，我在 ~/NetLogo 6.0.1.app/Contents/Java/ 中找到了一个 NetLogo.cfg 文件，其中包含以下信息：

[Application]
app.name=NetLogo
app.mainjar=netlogo-mac-app.jar
app.version=6.0.1
app.preferences.id=org/nlogo/app
app.mainclass=org/nlogo/app/MacApplication
app.classpath=$APPDIR/../../Java/args4j-2.0.12.jar:$APPDIR/../../Java/asm-5.0.3.jar:$APPDIR/../../Java/asm-5.0.3.jar:$APPDIR/../../Java/asm-all-5.0.4.jar:$APPDIR/../../Java/asm-all-5.0.4.jar:$APPDIR/../../Java/asm-analysis-5.0.3.jar:$APPDIR/../../Java/asm-analysis-5.0.3.jar:$APPDIR/../../Java/asm-tree-5.0.3.jar:$APPDIR/../../Java/asm-tree-5.0.3.jar:$APPDIR/../../Java/asm-util-5.0.3.jar:$APPDIR/../../Java/asm-util-5.0.3.jar:$APPDIR/../../Java/behaviorsearch.jar:$APPDIR/../../Java/commons-codec-1.10.jar:$APPDIR/../../Java/commons-codec-1.10.jar:$APPDIR/../../Java/commons-logging-1.1.1.jar:$APPDIR/../../Java/commons-logging-1.1.1.jar:$APPDIR/../../Java/gluegen-rt-2.3.2.jar:$APPDIR/../../Java/gluegen-rt-2.3.2.jar:$APPDIR/../../Java/httpclient-4.2.jar:$APPDIR/../../Java/httpclient-4.2.jar:$APPDIR/../../Java/httpcore-4.2.jar:$APPDIR/../../Java/httpcore-4.2.jar:$APPDIR/../../Java/httpmime-4.2.jar:$APPDIR/../../Java/httpmime-4.2.jar:$APPDIR/../../Java/java-objc-bridge-1.0.0.jar:$APPDIR/../../Java/jcommon-1.0.16.jar:$APPDIR/../../Java/jfreechart-1.0.13.jar:$APPDIR/../../Java/jhotdraw-6.0b1.jar:$APPDIR/../../Java/jhotdraw-6.0b1.jar:$APPDIR/../../Java/jmf-2.1.1e.jar:$APPDIR/../../Java/jmf-2.1.1e.jar:$APPDIR/../../Java/jna-4.2.2.jar:$APPDIR/../../Java/jogl-all-2.3.2.jar:$APPDIR/../../Java/jogl-all-2.3.2.jar:$APPDIR/../../Java/json-simple-1.1.1.jar:$APPDIR/../../Java/json-simple-1.1.1.jar:$APPDIR/../../Java/log4j-1.2.16.jar:$APPDIR/../../Java/log4j-1.2.16.jar:$APPDIR/../../Java/macro-compat_2.12-1.1.1.jar:$APPDIR/../../Java/macro-compat_2.12-1.1.1.jar:$APPDIR/../../Java/netlogo-6.0.1.jar:$APPDIR/../../Java/netlogo-6.0.1.jar:$APPDIR/../../Java/netlogo-mac-app.jar:$APPDIR/../../Java/parboiled-core-1.1.7.jar:$APPDIR/../../Java/parboiled-core-1.1.7.jar:$APPDIR/../../Java/parboiled-java-1.1.7.jar:$APPDIR/../../Java/parboiled-java-1.1.7.jar:$APPDIR/../../Java/parboiled_2.12-2.1.3.jar:$APPDIR/../../Java/parboiled_2.12-2.1.3.jar:$APPDIR/../../Java/pegdown-1.6.0.jar:$APPDIR/../../Java/pegdown-1.6.0.jar:$APPDIR/../../Java/picocontainer-2.13.6.jar:$APPDIR/../../Java/picocontainer-2.13.6.jar:$APPDIR/../../Java/rsyntaxtextarea-2.6.0.jar:$APPDIR/../../Java/rsyntaxtextarea-2.6.0.jar:$APPDIR/../../Java/scala-library-2.12.0.jar:$APPDIR/../../Java/scala-library-2.12.1.jar:$APPDIR/../../Java/scala-library-2.12.1.jar:$APPDIR/../../Java/scala-parser-combinators_2.12-1.0.5.jar:$APPDIR/../../Java/scala-parser-combinators_2.12-1.0.5.jar:$APPDIR/../../Java/shapeless_2.12-2.3.2.jar:$APPDIR/../../Java/shapeless_2.12-2.3.2.jar
app.runtime=$APPDIR/../../JRE
app.identifier=org.nlogo.app

[JVMOptions]
-Dnetlogo.extensions.dir=$APPDIR/../../extensions
-Dnetlogo.models.dir=$APPDIR/../../models
-Dnetlogo.docs.dir=$APPDIR/../../docs
-Xdock:name=NetLogo
-Dorg.nlogo.mac.appClassName=org.nlogo.app.App$
-Xmx1024m
-Dfile.encoding=UTF-8
-Dapple.awt.graphics.UseQuartz=true


[JVMUserOptions]

[ArgOptions]

这看起来很有希望，但是从字面上删除这个文件并没有影响我通过使用带有 Java 方法的 Control API 打开应用程序来运行 NetLogo 的能力。因此，我很困惑，所以任何帮助将不胜感激。

netlogo - 在 Jython 中打开 NetLogo 模型时抛出 Java 非法参数异常

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