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Java: Support JDK 27 #22138

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371e8c2
Java: Add change note for JDK 27
IdrissRio Jul 3, 2026
bf7c489
Java: Update supported language versions to include Java 27
IdrissRio Jul 3, 2026
545d541
Accept new JDK 27 results
IdrissRio Jul 8, 2026
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4 changes: 2 additions & 2 deletions docs/codeql/reusables/supported-versions-compilers.rst
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Expand Up @@ -18,7 +18,7 @@
.NET 5, .NET 6, .NET 7, .NET 8, .NET 9, .NET 10","``.sln``, ``.slnx``, ``.csproj``, ``.cs``, ``.cshtml``, ``.xaml``"
GitHub Actions,"Not applicable",Not applicable,"``.github/workflows/*.yml``, ``.github/workflows/*.yaml``, ``**/action.yml``, ``**/action.yaml``"
Go (aka Golang), "Go up to 1.26", "Go 1.11 or more recent", ``.go``
Java,"Java 7 to 26 [6]_","javac (OpenJDK and Oracle JDK),
Java,"Java 7 to 27 [6]_","javac (OpenJDK and Oracle JDK),

Eclipse compiler for Java (ECJ) [7]_",``.java``
Kotlin,"Kotlin 1.8.0 to 2.4.0\ *x*","kotlinc",``.kt``
Expand All @@ -36,7 +36,7 @@
.. [3] Objective-C, Objective-C++, C++/CLI, and C++/CX are not supported.
.. [4] Support for the clang-cl compiler is preliminary.
.. [5] Support for the Arm Compiler (armcc) is preliminary.
.. [6] Builds that execute on Java 7 to 26 can be analyzed. The analysis understands standard language features in Java 8 to 26; "preview" and "incubator" features are not supported. Source code using Java language versions older than Java 8 are analyzed as Java 8 code.
.. [6] Builds that execute on Java 7 to 27 can be analyzed. The analysis understands standard language features in Java 8 to 27; "preview" and "incubator" features are not supported. Source code using Java language versions older than Java 8 are analyzed as Java 8 code.
.. [7] ECJ is supported when the build invokes it via the Maven Compiler plugin or the Takari Lifecycle plugin.
.. [8] JSX and Flow code, YAML, JSON, HTML, and XML files may also be analyzed with JavaScript files.
.. [9] The extractor requires Python 3 to run. To analyze Python 2.7 you should install both versions of Python.
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4 changes: 2 additions & 2 deletions java/ql/integration-tests/java/buildless-erroneous/ExtractorInformation.expected
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Expand Up @@ -2,7 +2,7 @@
| Number of calls with call target | 1 |
| Number of calls with missing call target | 4 |
| Number of diagnostics from CodeQL Java extractor with severity 5 | 10 |
| Number of diagnostics from CodeQL Java extractor with severity 6 | 2 |
| Number of diagnostics from CodeQL Java extractor with severity 6 | 1 |
| Number of expressions with known type | 1 |
| Number of expressions with unknown type | 6 |
| Number of files | 606 |
Expand All @@ -12,6 +12,6 @@
| Number of lines of code with extension java | 7 |
| Percentage of calls with call target | 20 |
| Percentage of expressions with known type | 14 |
| Total number of diagnostics from CodeQL Java extractor | 12 |
| Total number of diagnostics from CodeQL Java extractor | 11 |
| Total number of lines | 13 |
| Total number of lines with extension java | 13 |
4 changes: 4 additions & 0 deletions java/ql/src/change-notes/2026-07-03-support-java-27.md
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@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* The Java extractor and QL libraries now support Java 27.
3 changes: 1 addition & 2 deletions java/ql/test/library-tests/errortype/Diags.expected
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@@ -1,7 +1,6 @@
| Test.java:0:0:0:0 | 2 javac errors |
| Test.java:6:5:6:15 | Unknown or erroneous type for expression of kind TypeAccess |
| Test.java:6:23:6:39 | Unexpected symbol for constructor: new NoSuchClass() |
| Test.java:6:23:6:39 | Unknown or erroneous type for expression of kind ClassInstanceCreation |
| Test.java:6:27:6:37 | Unknown or erroneous type for expression of kind TypeAccess |
| Test.java:7:12:7:14 | Unknown or erroneous type for expression of kind VarAccess |
| file://:0:0:0:0 | 2 errors during annotation processing |
| file://:0:0:0:0 | 1 errors during annotation processing |
3 changes: 1 addition & 2 deletions java/ql/test/library-tests/errortype/Test.java
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Expand Up @@ -10,8 +10,7 @@ public NoSuchClass test() {
}

// Diagnostic Matches: Unexpected symbol for constructor: new NoSuchClass()
// Diagnostic Matches: 2 javac errors
// Diagnostic Matches: 2 errors during annotation processing
// Diagnostic Matches: 1 errors during annotation processing
// Diagnostic Matches: Unknown or erroneous type for expression of kind TypeAccess
// Diagnostic Matches: Unknown or erroneous type for expression of kind ClassInstanceCreation
// Diagnostic Matches: Unknown or erroneous type for expression of kind VarAccess
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