matthiasblaesing commented on issue #8722:
URL: https://github.com/apache/netbeans/issues/8722#issuecomment-3172628325
@lahodaj this is reproducible and looks like a problem in the Linter. Would
you mind having a look?
I got this in the IDE:
```
Caused: java.lang.NullPointerException: Cannot read field "values" because
"values" is null
at com.sun.tools.javac.code.Lint.suppressionsFrom(Lint.java:532)
at
java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:215)
at
java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
```
Looking at the code in:
https://github.com/openjdk/jdk/blob/022e29a77533aacabd56820d00ecffa9646a8362/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java#L528-L541
there is a null check missing.
That code breaks independent from the IDE (tested with `Build 35
(2025/8/8)`):
```java
@SuppressWarnings
public class TestX {
public static void main(String[] args) {
}
}
```
```
matthias@enterprise:~/NetBeansProjects/MavenSpielwiese/src/main/java$ LANG=C
~/bin/jdk-25/bin/javac -XDshould-stop.at=FLOW -XDdev Test.java
Test.java:2: error: annotation @SuppressWarnings is missing a default value
for the element 'value'
@SuppressWarnings
^
1 error
An exception has occurred in the compiler (25). Please file a bug against
the Java compiler via the Java bug reporting page (https://bugreport.java.com)
after checking the Bug Database (https://bugs.java.com) for duplicates. Include
your program, the following diagnostic, and the parameters passed to the Java
compiler in your report. Thank you.
java.lang.NullPointerException: Cannot read field "values" because "values"
is null
at
jdk.compiler/com.sun.tools.javac.code.Lint.suppressionsFrom(Lint.java:532)
at
java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:214)
at
java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:197)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at
java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1939)
at
java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:570)
at
java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:560)
at
java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:153)
at
java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:176)
at
java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:265)
at
java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:632)
at
jdk.compiler/com.sun.tools.javac.code.Lint.suppressionsFrom(Lint.java:524)
at
jdk.compiler/com.sun.tools.javac.code.Lint.suppressionsFrom(Lint.java:511)
at jdk.compiler/com.sun.tools.javac.code.Lint.augment(Lint.java:82)
at
jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5414)
at
jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5365)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attrib(Attr.java:5302)
at
jdk.compiler/com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1346)
at
jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:968)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:319)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:178)
at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:66)
at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:52)
printing javac parameters to: /tmp/javac.20250810_151958.args
matthias@enterprise:~/NetBeansProjects/MavenSpielwiese/src/main/java$
```
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