InvocationTargetException

[Jordantan1999]

I am getting error when running this command
java -javaagent:D:\dakaraphi\dakaraphi.devtools.tracing.jar -Ddakaraphi.devtools.tracing.config.file=D:\dakaraphi\tracer.json -jar D:\example.jar

The error message is

TracingAgent: Starting v0.5.1 TracingAgent: classloader: null Exception in thread "main" java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:115) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:560) at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:572) Caused by: java.lang.NullPointerException at java.base/java.io.File.<init>(File.java:278) at dakaraphi.devtools.tracing.TracingAgent.premain(TracingAgent.java:34) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)

[d-akara]

It probably couldn't find the config file. Note, 0.5.1 is old. I would recommend getting the source and building v1.0.9 which is the latest.

[Jordantan1999]

but the jar that I am using dakaraphi.devtools.tracing.jar, was built from the source in git.

[d-akara]

The source in git would log v1.0.9

java-tracing-agent/dakaraphi.devtools.tracing/src/main/java/dakaraphi/devtools/tracing/TracingAgent.java

Line 36 in 7bc9a28

TraceLogger.log("Starting v1.0.9");