分析Corda应用程序

时间:2018-06-11 14:22:02

标签: corda

我正在尝试针对CorDapp运行一些检测/分析 - 对于这个问题,示例cordapp在这里:https://github.com/corda/cordapp-example.git版本发布-3。

但是,当我尝试使用来自corda shell的jvm runtime将VisualVM连接到正在运行的PID时,我会收到如下错误:

(从VisualVM的“配置文件”选项卡)

Mon Jun 11 15:17:36 BST 2018>>> Profiler Agent: JNI OnLoad Initializing... Profiler Agent: JNI OnLoad Initialized successfully Profiler Agent: Waiting for connection on port 5140 (Protocol version: 18) Profiler Agent: Established connection with the tool Profiler Agent: Local accelerated session Profiler Agent Error: Exception when handling command from client: java.io.InvalidClassException: filter status: REJECTED Profiler Agent: Connection with agent closed

或(来自Sampler选项卡)

CPU sampling: Not available. Cannot access threads in target application. Check the logfile for details (use Help | About | Logfile).

日志文件给了我这个有用的错误:

WARNING [org.netbeans.modules.profiler.NetBeansProfiler]: IDEAppStatusHandler - error: {)} *** Profiler error (Mon Jun 11 15:17:59 BST 2018): exception while trying to get response from the target JVM: java.net.SocketException: Connection reset INFO [com.sun.tools.visualvm.sampler.cpu.ThreadInfoProvider]: mxbeans.getThreadMXBean() returns null for Application [id: localhost-10884, pid: 10884, host: localhost]

我在MacOS和Ubuntu上都尝试了这个,我也遇到了同样的问题 - 所以我不认为这是一个Java安装问题。

任何指针!?

1 个答案:

答案 0 :(得分:2)

VisualVM使用Java序列化。 Corda出于安全原因禁止Java序列化。

请参阅https://github.com/corda/corda/blob/release-V3/node/src/main/kotlin/net/corda/node/internal/NodeStartup.kt#L204

open protected fun banJavaSerialisation(conf: NodeConfiguration) {
    SerialFilter.install(if (conf.notary?.bftSMaRt != null) ::bftSMaRtSerialFilter else ::defaultSerialFilter)
}