Java: tests for automodel application mode candidate extraction

Author: Stephan Brandauer

java/ql/test/query-tests/Telemetry/AutomodelApplicationModeExtractCandidates/AutomodelApplicationModeExtractCandidates.expected

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+| Test.java:14:3:14:11 | reference | command-injection, path-injection, request-forgery, sql-injection\nrelated locations: $@.\nmetadata: $@, $@, $@, $@, $@, $@. | Test.java:14:3:14:24 | set(...) | CallContext | file://java.util.concurrent.atomic:1:1:1:1 | java.util.concurrent.atomic | package | file://AtomicReference:1:1:1:1 | AtomicReference | type | file://false:1:1:1:1 | false | subtypes | file://set:1:1:1:1 | set | name | file://(String):1:1:1:1 | (String) | signature | file://Argument[this]:1:1:1:1 | Argument[this] | input |
+| Test.java:20:3:20:10 | supplier | command-injection, path-injection, request-forgery, sql-injection\nrelated locations: $@.\nmetadata: $@, $@, $@, $@, $@, $@. | Test.java:20:3:20:16 | get(...) | CallContext | file://java.util.function:1:1:1:1 | java.util.function | package | file://Supplier:1:1:1:1 | Supplier | type | file://true:1:1:1:1 | true | subtypes | file://get:1:1:1:1 | get | name | file://():1:1:1:1 | () | signature | file://Argument[this]:1:1:1:1 | Argument[this] | input |

java/ql/test/query-tests/Telemetry/AutomodelApplicationModeExtractCandidates/AutomodelApplicationModeExtractCandidates.qlref

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+Telemetry/AutomodelApplicationModeExtractCandidates.ql

java/ql/test/query-tests/Telemetry/AutomodelApplicationModeExtractCandidates/Test.java

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+package com.github.codeql.test;
+
+import java.io.InputStream;
+import java.nio.file.CopyOption;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Supplier;
+
+class AutomodelApplicationModeExtractCandidates {
+	public static void main(String[] args) throws Exception {
+		AtomicReference<String> reference = new AtomicReference<>(); // uninteresting (parameterless constructor)
+		reference.set(args[0]); // arg[0] is not a candidate (modeled as value flow step)
+		// ^^^^^^ Argument[this] is a candidate (should no longer be, once a recent PR
+		// is merged)
+	}
+
+	public static void callSupplier(Supplier<String> supplier) {
+		supplier.get(); // Argument[this] is a candidate
+	}
+
+	public static void copyFiles(Path source, Path target, CopyOption option) throws Exception {
+		Files.copy(
+			source, // no candidate (modeled)
+			target, // no candidate (modeled)
+			option // no candidate (not modeled, but source and target are modeled)
+		);
+	}
+
+	public static InputStream getInputStream(Path openPath) throws Exception {
+		return Files.newInputStream(
+			openPath // no candidate (known sink)
+		);
+	}
+}