20 lines
1.0 KiB
Plaintext
20 lines
1.0 KiB
Plaintext
# JDK: openjdk version "25.0.5" 2026-10-20 LTS
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$ javac --release 25 ScopeProbe.java
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ScopeProbe.java:1: error: StructuredTaskScope is a preview API and is disabled by default.
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import java.util.concurrent.StructuredTaskScope;
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^
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(use --enable-preview to enable preview APIs)
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ScopeProbe.java:6: error: StructuredTaskScope is a preview API and is disabled by default.
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try (var scope = StructuredTaskScope.open()) {
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^
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(use --enable-preview to enable preview APIs)
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2 errors
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$ javac --release 25 --enable-preview ScopeProbe.java
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Note: ScopeProbe.java uses preview features of Java SE 25.
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Note: Recompile with -Xlint:preview for details.
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$ java -cp preview-classes ScopeProbe
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Error: LinkageError occurred while loading main class ScopeProbe
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java.lang.UnsupportedClassVersionError: Preview features are not enabled for ScopeProbe (class file version 69.65535). Try running with '--enable-preview'
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$ java --enable-preview -cp preview-classes ScopeProbe
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security: ok | performance: ok
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