The test misses this output, maybe we do not get this on Alpine for some good reason (and should avoid testing for this on Linux Alpine) ?

java.lang.RuntimeException: '<signal handler called>' missing from stdout/stderr
at jdk.test.lib.process.OutputAnalyzer.shouldContain(OutputAnalyzer.java:253)
at TestJhsdbJstackMixedCore.runJstackMixed(TestJhsdbJstackMixedCore.java:62)
at TestJhsdbJstackMixedCore.main(TestJhsdbJstackMixedCore.java:74)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:335)
at java.base/java.lang.Thread.run(Thread.java:1516)

The hserr seems to show the crash that is caused intentionally by the test :


# SIGSEGV (0xb) at pc=0x00007fdf16097130, pid=5136, tid=5156
#
# JRE version: OpenJDK Runtime Environment (27.0) (build 27-internal-adhoc.jenkinsi.jdk)
# Java VM: OpenJDK 64-Bit Server VM (27-internal-adhoc.jenkinsi.jdk, mixed mode, sharing, tiered, compressed oops, compact obj headers, g1 gc, linux-amd64)
# Problematic frame:
# C [libLingeredApp.so+0x1130] Java_jdk_test_lib_apps_LingeredApp_crash+0x0

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [libLingeredApp.so+0x1130] Java_jdk_test_lib_apps_LingeredApp_crash+0x0 (libLingeredApp.c:42)
j jdk.test.lib.apps.LingeredApp.main([Ljava/lang/String;)V+133
v ~StubRoutines::call_stub_stub (stub gen) 0x00007fdf234015a2
V [libjvm.so+0xaa66c0] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, JavaThread*)+0x2b0
V [libjvm.so+0xb7d7e3] jni_invoke_static(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, JavaThread*) [clone .constprop.1]+0x373
V [libjvm.so+0xb800ef] jni_CallStaticVoidMethod+0x15f
C [libjli.so+0x3b5a] invokeStaticMainWithArgs+0x4a
C [libjli.so+0x4c00] JavaMain+0xed0
C [libjli.so+0x8139] ThreadJavaMain+0x9
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j jdk.test.lib.apps.LingeredApp.crash()I+0
j jdk.test.lib.apps.LingeredApp.main([Ljava/lang/String;)V+133
v ~StubRoutines::call_stub_stub (stub gen) 0x00007fdf234015a2