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From "P. Ottlinger" <pottlin...@apache.org>
Subject update to newest apache-parent pom yields problems with maven enforcer
Date Sat, 21 May 2016 18:44:19 GMT
Hi fellow devs,

I tried updating to the latest apache-parent-pom 18, but local builds
fail with problems related to maven-enforcer, that is our being tied to
JDK5.

Is that still necessary as it prevents us from using newer
plugin/dependency versions - what's your opinion on our JDK5
compatibility: is it still needed or is it a blocker for future development?

As you might know I'm in favour of dropping support for old (officially
unsupported) versions.

Thanks,
Phil


PS:
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-site-plugin:3.4:site (default-cli) on
project apache-rat-project: failed to get report for
org.apache.maven.plugins:maven-javadoc-plugin: Failed to execute goal
org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce
(enforce-bytecode-version) on project apache-rat-api: Execution
enforce-bytecode-version of goal
org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce failed.
NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to
execute goal org.apache.maven.plugins:maven-site-plugin:3.4:site
(default-cli) on project apache-rat-project: failed to get report for
org.apache.maven.plugins:maven-javadoc-plugin
        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 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.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.MojoExecutionException: failed to get
report for org.apache.maven.plugins:maven-javadoc-plugin
        at
org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:156)
        at
org.apache.maven.plugins.site.render.AbstractSiteRenderingMojo.getReports(AbstractSiteRenderingMojo.java:239)
        at
org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:124)
        at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        ... 20 more
Caused by: org.apache.maven.lifecycle.LifecycleExecutionException:
Failed to execute goal
org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce
(enforce-bytecode-version) on project apache-rat-api: Execution
enforce-bytecode-version of goal
org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce failed.
        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.MojoExecutor.executeForkedExecutions(MojoExecutor.java:352)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeForkedExecutions(DefaultLifecycleExecutor.java:173)
        at
org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildReportPlugin(DefaultMavenReportExecutor.java:309)
        at
org.apache.maven.reporting.exec.DefaultMavenReportExecutor.buildMavenReports(DefaultMavenReportExecutor.java:151)
        ... 24 more
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
enforce-bytecode-version of goal
org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce failed.
        at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
        at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        ... 30 more
Caused by: java.lang.NullPointerException
        at
org.apache.maven.plugins.enforcer.EnforceBytecodeVersion.isBadArtifact(EnforceBytecodeVersion.java:195)
        at
org.apache.maven.plugins.enforcer.EnforceBytecodeVersion.checkDependencies(EnforceBytecodeVersion.java:182)
        at
org.apache.maven.plugins.enforcer.EnforceBytecodeVersion.handleArtifacts(EnforceBytecodeVersion.java:109)
        at
org.apache.maven.plugins.enforcer.AbstractResolveDependencies.execute(AbstractResolveDependencies.java:77)
        at
org.apache.maven.plugins.enforcer.EnforceMojo.execute(EnforceMojo.java:193)
        at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        ... 31 more

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