gretty throws org.gradle.process.internal.ExecException: Process command {} finished with non-zero exit value 1 - gradle

Question

I'm using following simple build.gradle project template:
buildscript {
repositories {
maven {
url repoUrlPublic
}
}
dependencies {
classpath "org.gretty:gretty:3.0.2"
}
}
apply plugin: "org.gretty"
apply plugin: 'war'
description = "Servlet Template"
group = "com.grp"
version = "0.0.1"
sourceCompatibility = "1.8"
targetCompatibility = "1.8"
repoUrlPublic = "http://..."
//gradlew run
ext {
javaMainClass = "com.pckg.TemplateJAR"
}
war {
baseName 'template'
}
gretty {
debugPort = 5005 // default
debugSuspend = true // default
httpPort = 8585
servletContainer = 'jetty9.3'
}
repositories {
// project nexus server repository
maven {
url repoUrlPublic
}
}
dependencies {
implementation 'org.slf4j:slf4j-api:1.7.25'
implementation 'ch.qos.logback:logback-classic:1.2.3'
implementation 'ch.qos.logback:logback-core:1.2.3'
compileOnly 'javax.servlet:javax.servlet-api:3.0.1'
}
and with the version specified it produce following issue:
gradlew appRunDebug Picked up JAVA_TOOL_OPTIONS: -Duser.language=en
Listening for transport dt_socket at address: 5005 10:45:40.594 [main]
DEBUG org.akhikhl.gretty.ServiceProtocol - ServiceProtocol.send(61607,
init 61611) Exception in thread "main" java.net.ConnectException:
Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.(Socket.java:434)
at java.net.Socket.(Socket.java:244)
at org.akhikhl.gretty.ServiceProtocol$Writer.write(ServiceProtocol.groovy:76)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.runtime.callsite.PlainObjectMetaMethodSite.doInvoke(PlainObjectMetaMethodSite.java:43)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrap.invoke(PogoMetaMethodSite.java:179)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:70)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
at org.akhikhl.gretty.Runner.run(Runner.groovy:118)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.runtime.callsite.PlainObjectMetaMethodSite.doInvoke(PlainObjectMetaMethodSite.java:43)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:190)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:70)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:119)
at org.akhikhl.gretty.Runner.main(Runner.groovy:53) Picked up JAVA_TOOL_OPTIONS: -Duser.language=en Exception in thread "Thread-65"
org.gradle.process.internal.ExecException: Process 'command
'C:\Java\jdk1.8.0_191\bin\java.exe'' finished with non-zero exit value
1
at org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:396)
at org.gradle.process.internal.DefaultJavaExecAction.execute(DefaultJavaExecAction.java:38)
at org.gradle.process.internal.DefaultExecActionFactory.javaexec(DefaultExecActionFactory.java:129)
at org.gradle.api.internal.project.DefaultProject.javaexec(DefaultProject.java:1105)
at org.gradle.api.internal.project.DefaultProject.javaexec(DefaultProject.java:1100)
at org.gradle.api.Project$javaexec$6.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
at org.akhikhl.gretty.DefaultLauncher.javaExec(DefaultLauncher.groovy:100)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:352)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:68)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:168)
at org.akhikhl.gretty.LauncherBase$_launchThread_closure5.doCall(LauncherBase.groovy:208)
at org.akhikhl.gretty.LauncherBase$_launchThread_closure5.doCall(LauncherBase.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.Closure.call(Closure.java:411)
at groovy.lang.Closure.call(Closure.java:405)
at groovy.lang.Closure.run(Closure.java:492)
at java.lang.Thread.run(Thread.java:748)
When the gretty plugin version 3.0.1 is set, script works without issue. Any idea why the script is not back compatible?

Answer 1

I was getting:
java.net.ConnectException: Connection refused: connect
at org.akhikhl.gretty.ServiceProtocol$Writer.write(ServiceProtocol.groovy:76)
...
when running from IntelliJ IDEA. Then I ran it from the 'Terminal' in IDEA, and it worked. Then I ran it from IDEA again ... and it worked :-\
Not stopping to ask why ... I can only speculate that Gretty is trying to write some file, which it isn't allowed to, when it runs under IDEA (maybe files related to SSL certs), but once these files are written, it is able to read them just fine ... although an argument against this is the 'blocking' nature of the problem ... a 'security exception' would be more apt.