Attaching to remote debugger causes exception upon breakpoint

Please file the issue here: https://github.com/fwcd/kotlin-debug-adapter/issues

Description:

When using the remote debugger, attaching to an existing gradle run task, an exception ocurres when attempting to stop on a breakpoint.

./gradlew run --debug-jvm

and the following launch config:

{
"type": "kotlin",
"hostName": "localhost",
"port": 5005,
"timeout": 30000,
"request": "attach",
"name": "Attach to remote debugger",
"projectRoot": "${workspaceFolder}",
}

Exception:

Caused by: com.sun.jdi.AbsentInformationException
at jdk.jdi/com.sun.tools.jdi.StratumLineInfo.liSourcePath(StratumLineInfo.java:61)
at jdk.jdi/com.sun.tools.jdi.LocationImpl.sourcePath(LocationImpl.java:201)
at jdk.jdi/com.sun.tools.jdi.LocationImpl.sourcePath(LocationImpl.java:191)
at org.javacs.ktda.jdi.JDIDebuggee.sourceOf(JDIDebuggee.kt:167)
at org.javacs.ktda.jdi.JDIDebuggee.positionOf(JDIDebuggee.kt:163)
at org.javacs.ktda.jdi.stack.JDIStackFrame.(JDIStackFrame.kt:19)
at org.javacs.ktda.jdi.stack.JDIStackTrace.(JDIStackTrace.kt:11)
at org.javacs.ktda.jdi.JDIThread.stackTrace(JDIThread.kt:35)
at org.javacs.ktda.jdi.JDIThread.stackTrace(JDIThread.kt:14)
at org.javacs.ktda.adapter.KotlinDebugAdapter.stackTrace(KotlinDebugAdapter.kt:341)
... 16 more

JDK: Open JDK 11
Kotlin Version: 1.3.70

Reproduce the failure with ./gradlew run --debug-jvm and the shown attach configuration on OpenJDK 11. Start in org.javacs.ktda.jdi.JDIDebuggee.sourceOf and positionOf, then inspect JDIStackFrame and JDIStackTrace where the breakpoint stop triggers AbsentInformationException. Done means attaching and stopping at a breakpoint no longer produces this exception.

Written by the indexing model from the issue text.