Failure on java 9(-ea+159): Unable to make private java.io.File(java.lang.String,java.io.File) accessible

[chtompki]

Given the environment:

$ mvn -X
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T11:41:47-05:00)
Maven home: /usr/local/Cellar/maven/3.3.9/libexec
Java version: 9-ea, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.12.3", arch: "x86_64", family: "mac"

my commons-text build referencing org.apache.maven.plugins:maven-site-plugin:3.6, which in turn utilizes our version of the findbugs-maven-plugin, currently 3.0.0 (but I have also tried the HEAD of master, 3.0.5-SNAPSHOT), seems to fail with the following error trace:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.6:site (default-site) on project commons-text: Execution default-site of goal org.apache.maven.plugins:maven-site-plugin:3.6:site failed: No signature of method: java.io.File.exists() is applicable for argument types: () values: []
[ERROR] Possible solutions: write(java.lang.String), with(groovy.lang.Closure), print(java.io.PrintWriter), is(java.lang.Object), print(java.lang.Object), printf(java.lang.String, java.lang.Object)
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.6:site (default-site) on project commons-text: Execution default-site of goal org.apache.maven.plugins:maven-site-plugin:3.6:site failed: No signature of method: java.io.File.exists() is applicable for argument types: () values: []
Possible solutions: write(java.lang.String), with(groovy.lang.Closure), print(java.io.PrintWriter), is(java.lang.Object), print(java.lang.Object), printf(java.lang.String, java.lang.Object)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:547)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-site of goal org.apache.maven.plugins:maven-site-plugin:3.6:site failed: No signature of method: java.io.File.exists() is applicable for argument types: () values: []
Possible solutions: write(java.lang.String), with(groovy.lang.Closure), print(java.io.PrintWriter), is(java.lang.Object), print(java.lang.Object), printf(java.lang.String, java.lang.Object)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
	... 20 more
Caused by: groovy.lang.MissingMethodException: No signature of method: java.io.File.exists() is applicable for argument types: () values: []
Possible solutions: write(java.lang.String), with(groovy.lang.Closure), print(java.io.PrintWriter), is(java.lang.Object), print(java.lang.Object), printf(java.lang.String, java.lang.Object)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:58)
	at org.codehaus.groovy.runtime.callsite.PojoMetaClassSite.call(PojoMetaClassSite.java:49)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
	at org.codehaus.mojo.findbugs.FindBugsMojo.canGenerateReport(FindBugsMojo.groovy:534)
	at org.apache.maven.reporting.exec.MavenReportExecution.canGenerateReport(MavenReportExecution.java:89)
	at org.apache.maven.plugins.site.render.AbstractSiteRenderingMojo.getReports(AbstractSiteRenderingMojo.java:267)
	at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:115)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
	... 21 more

[PascalSchumacher]

I think this can be fixed by updating to groovy 2.4.8+

See:
http://mail-archives.apache.org/mod_mbox/groovy-dev/201612.mbox/%3Cop.yrurx4dakdkhrr%40desktop-2khsk44%3E

http://mail-archives.apache.org/mod_mbox/groovy-dev/201612.mbox/%3C5842A401.4080702%40gmx.org%3E

which discuss the problem and confirm that it is fixed in 2.4.8.

[PascalSchumacher]

3.0.5 with groovy 2.4.12 was released a few days ago, so this issue should be fixed.