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https://issues.apache.org/jira/browse/NETBEANS-4034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17073670#comment-17073670
]
Vedran commented on NETBEANS-4034:
----------------------------------
Sure,
1. First i create Maven application:
File -> New Project -> Java with Maven -> Java Application
2. Then i create Java class in src/main/java/package_name directory
New File -> Java -> Java Class
3. In created class, i write psvm + tab to create main method
4. In created class i create static property
static String B = """
test
""";
5. Red hint shows saying:
text blocks are a preview feature and are disabled by default.
(use --enable-preview to enable text blocks)
----
(Alt-Enter shows hints)
6. I click Alt+Enter while on create static property -> two options are shown:
Enable Preview Feature
Convert to String
7. I click on the Enable Preview Feature
8. Mouse over static property now shows (hint is no longer red):
Text block may not be supported
----
(Alt-Enter shows hints)
9. In main method i add: System.out.println(B);
10. Right mouse click on my project in Projects explorer
11. Mouse click on the Clean and Build produces: BUILD SUCCESS
12. Right mouse click on the opened class in editor and then Run File produces:
--- exec-maven-plugin:1.5.0:exec (default-cli) @ preview ---
Error: LinkageError occurred while loading main class hr.vs.preview.A
java.lang.UnsupportedClassVersionError: Preview features are not enabled for
hr/vs/preview/A (class file version 58.65535). Try running with
'--enable-preview'
Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit
value: 1)
at org.apache.commons.exec.DefaultExecutor.executeInternal
(DefaultExecutor.java:404)
at org.apache.commons.exec.DefaultExecutor.execute (DefaultExecutor.java:166)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine (ExecMojo.java:764)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine (ExecMojo.java:711)
at org.codehaus.mojo.exec.ExecMojo.execute (ExecMojo.java:289)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:81)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 0.596 s
Finished at: 2020-04-02T14:08:11+02:00
13. Right mouse click on class in the Projects explorer and then Run File
produces:
--- exec-maven-plugin:1.5.0:exec (default-cli) @ preview ---
Error: LinkageError occurred while loading main class hr.vs.preview.A
java.lang.UnsupportedClassVersionError: Preview features are not enabled for
hr/vs/preview/A (class file version 58.65535). Try running with
'--enable-preview'
Command execution failed.
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit
value: 1)
at org.apache.commons.exec.DefaultExecutor.executeInternal
(DefaultExecutor.java:404)
at org.apache.commons.exec.DefaultExecutor.execute (DefaultExecutor.java:166)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine (ExecMojo.java:764)
at org.codehaus.mojo.exec.ExecMojo.executeCommandLine (ExecMojo.java:711)
at org.codehaus.mojo.exec.ExecMojo.execute (ExecMojo.java:289)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
(DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:81)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
(SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 0.590 s
Finished at: 2020-04-02T14:10:39+02:00
> --enable-preview + VM Options problem on MacOS
> ----------------------------------------------
>
> Key: NETBEANS-4034
> URL: https://issues.apache.org/jira/browse/NETBEANS-4034
> Project: NetBeans
> Issue Type: Bug
> Components: java - Compiler, java - Editor
> Affects Versions: 11.3
> Environment: Product Version: Apache NetBeans IDE 11.3
> Java: 14; OpenJDK 64-Bit Server VM 14+36-1461
> Runtime: OpenJDK Runtime Environment 14+36-1461
> System: Mac OS X version 10.15.3 running on x86_64; UTF-8; en_GB (nb)
> Reporter: Vedran
> Priority: Blocker
>
> Whatever i do i can't enable preview features in NetBeans. I also see hint
> 'Text block may not be supported'. I uninstalled nb-javac and i am running
> NetBeans on JDK 14. I also cleared cache. I can see that --enable-preview
> flag is set in pom.xml and in VM Options.
> In terminal, java --enable-preview --source 14 A.java executes as expected.
> What i also noticed in previous versions of NetBeans is that VM Options
> configured under Run are not passed to Maven.
> What am i missing?
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