It seems to me now, that I will need to change my approach soon in order to support multiple versions of CLR and Mono on Linux. So I currently use that trick to create DLL with signature friendly to JVM. During initial design I realized that there is way how to export native method from managed DLL. Last trick I mention is about initial CLR bootstrap. They are identified by name and signature only, strange limitation. Side note is that JNI RegisterNatives does not make any difference between static and instance methods. I apply Marshal.GetFunctionPointerForDelegate to wrapper methods to get endpoint callable by JVM. The wrapper have signature which is expected by JNI RegisterNatives. The implementation is is asymmetric to CLR->JVM proxies, because for both it's CLR which does the translation work. It seems that in version 0.4 I forgot to override hashCode() and equals(), sorry about that -) System.Object proxy as well overrides toString() method and forwards it to CLR. The reference to CLR is implemented as GCHandle converted to long and kept on JVM side inside the proxy. The proxy implements Java finalizer, so when JVM GC cleans up the proxy instance, the real CLR instance is released as well. But there is system.IObject interface on both of them for your convenience. Therefore it isn't inherited from system.Object proxy. system.Exception proxy is inherited from Java to be throw-able. Properties are converted to bean-like get and set methods.įor exceptions the situation is similar. Namespaces are always lower-cased to become packages. The generator must do few translations to follow Java naming rules. NET type and then to generate Java proxies. We use proxygen tool, which is part of jni4net, to reflect any public members of. I believe that it's actually how low level methods in Java runtime are implemented. Such method had "native" keyword in it's signature. So, in JNI there is method which allow you to register native implementation of Java method. The other way around is described in previous article, it would be good if you read that first if you didn't yet. Tonight I would like to explain how calling from Java to. Using (var zis = Adapt.Disposable( new ZipInputStream(fis.Real))) Using (var fis = Adapt.Disposable( new FileInputStream(classPath))) They are convenience adapters from corresponding Java interfaces.įoreach (var prop in Adapt.Enumeration(javaSystemProperties.keys())) There are new Adapt.Enumeration and Adapt.Disposable methods on CLR side.NET as well, but same byte order and interface is more convenient. NET, so you could share same byte array in both VMs. I will write another article about proxygen soon, till then look at new samples. It as well provides very simplistic build.cmd. Simplified proxygen to wrap all classes in DLL or JAR file from command-line, without time spent on config file.
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