java8-openjfx build output

==> Starting build()...
Starting a Gradle Daemon (subsequent builds will be faster)

> Task :buildSrc:generateGrammarSource
error(10):  internal error: Can't get property indirectDelegates using method get/isIndirectDelegates from org.antlr.tool.Grammar instance : java.lang.NullPointerException
java.util.Objects.requireNonNull(Objects.java:203)
java.util.ArrayList.removeAll(ArrayList.java:695)
org.antlr.tool.CompositeGrammar.getIndirectDelegates(CompositeGrammar.java:222)
org.antlr.tool.Grammar.getIndirectDelegates(Grammar.java:2620)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.antlr.stringtemplate.language.ASTExpr.invokeMethod(ASTExpr.java:563)
org.antlr.stringtemplate.language.ASTExpr.rawGetObjectProperty(ASTExpr.java:514)
org.antlr.stringtemplate.language.ASTExpr.getObjectProperty(ASTExpr.java:416)
org.antlr.stringtemplate.language.ActionEvaluator.attribute(ActionEvaluator.java:351)
org.antlr.stringtemplate.language.ActionEvaluator.expr(ActionEvaluator.java:136)
org.antlr.stringtemplate.language.ActionEvaluator.templateApplication(ActionEvaluator.java:216)
org.antlr.stringtemplate.language.ActionEvaluator.expr(ActionEvaluator.java:126)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:84)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:148)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:700)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:722)
org.antlr.stringtemplate.language.ASTExpr.writeAttribute(ASTExpr.java:659)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:86)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:148)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:700)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:722)
org.antlr.stringtemplate.language.ASTExpr.writeAttribute(ASTExpr.java:659)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:86)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:148)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:700)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:722)
org.antlr.stringtemplate.language.ASTExpr.writeAttribute(ASTExpr.java:659)
org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:86)
org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:148)
org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:700)
org.antlr.codegen.CodeGenerator.write(CodeGenerator.java:1278)
org.antlr.codegen.Target.genRecognizerFile(Target.java:94)
org.antlr.codegen.CodeGenerator.genRecognizer(CodeGenerator.java:463)
org.antlr.Tool.generateRecognizer(Tool.java:607)
org.antlr.Tool.process(Tool.java:429)
org.antlr.Tool.main(Tool.java:91)

> Task :buildSrc:compileJava
> Task :buildSrc:compileGroovy
> Task :buildSrc:processResources
> Task :buildSrc:classes
> Task :buildSrc:jar
> Task :buildSrc:assemble
> Task :buildSrc:compileTestJava
> Task :buildSrc:compileTestGroovy NO-SOURCE
> Task :buildSrc:processTestResources NO-SOURCE
> Task :buildSrc:testClasses
> Task :buildSrc:test
> Task :buildSrc:check
> Task :buildSrc:build

> Configure project :
gradle.gradleVersion: 4.8
OS_NAME: linux
OS_ARCH: amd64
JAVA_HOME: /usr/lib/jvm/java-8-openjdk
JDK_HOME: /usr/lib/jvm/java-8-openjdk
java.runtime.version: 1.8.0_362-b09
java version: 1.8.0_362
java build number: 09
jdk.runtime.version: 1.8.0_362-b09
jdk version: 1.8.0_362
jdk build number: 09
minimum java build number: 26
CONF: Release
NUM_COMPILE_THREADS: 8
COMPILE_TARGETS: linux
COMPILE_FLAGS_FILES: buildSrc/linux.gradle
HUDSON_JOB_NAME: not_hudson
HUDSON_BUILD_NUMBER: 0000
PROMOTED_BUILD_NUMBER: 00
PRODUCT_NAME: OpenJFX
RAW_VERSION: 8.0.202
RELEASE_NAME: 8u202
RELEASE_MILESTONE: ea
UPDATE_STUB_CACHE: false

> Task :checkJfxrtJar FAILED

FAILURE: Build failed with an exception.

* Where:
Build file '/home/adam/.cache/paru/clone/java8-openjfx/src/rt-8u202-ga/build.gradle' line: 221

* What went wrong:
Execution failed for task ':checkJfxrtJar'.
> FAIL: /usr/lib/jvm/java-8-openjdk/jre/lib/ext/jfxrt.jar must be removed before building sdk

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 16s
1 actionable task: 1 executed
==> ERROR: A failure occurred in build().
    Aborting...
error: failed to build 'java8-openjfx-8.u202-6':