Examples with JavaCompiler javax.tools.JavaCompiler used on opensource projects

Example 56 with JavaCompiler

use of javax.tools.JavaCompiler in project error-prone by google.

the class ErrorProneJavaCompilerTest method testMaturityResetsAfterOverride.

@Test
public void testMaturityResetsAfterOverride() throws Exception {
    DiagnosticTestHelper diagnosticHelper = new DiagnosticTestHelper();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(outputStream, UTF_8), true);
    ErrorProneInMemoryFileManager fileManager = new ErrorProneInMemoryFileManager();
    JavaCompiler errorProneJavaCompiler = new ErrorProneJavaCompiler();
    List<String> args = Lists.newArrayList("-d", tempDir.getRoot().getAbsolutePath(), "-proc:none", "-Xep:EmptyIf");
    List<JavaFileObject> sources = fileManager.forResources(BadShiftAmount.class, "testdata/EmptyIfStatementPositiveCases.java");
    fileManager.close();
    JavaCompiler.CompilationTask task = errorProneJavaCompiler.getTask(printWriter, null, diagnosticHelper.collector, args, null, sources);
    boolean succeeded = task.call();
    assertThat(succeeded).isFalse();
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(containsString("[EmptyIf]")));
    assertTrue(matcher.matches(diagnosticHelper.getDiagnostics()));
    diagnosticHelper.clearDiagnostics();
    args.remove("-Xep:EmptyIf");
    task = errorProneJavaCompiler.getTask(printWriter, null, diagnosticHelper.collector, args, null, sources);
    fileManager.close();
    succeeded = task.call();
    assertThat(succeeded).isTrue();
    assertThat(diagnosticHelper.getDiagnostics()).isEmpty();
}

Example 57 with JavaCompiler

use of javax.tools.JavaCompiler in project error-prone by google.

the class ErrorProneJavaCompilerTest method testSeverityResetsAfterOverride.

@Test
public void testSeverityResetsAfterOverride() throws Exception {
    DiagnosticTestHelper diagnosticHelper = new DiagnosticTestHelper();
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(outputStream, UTF_8), true);
    ErrorProneInMemoryFileManager fileManager = new ErrorProneInMemoryFileManager();
    JavaCompiler errorProneJavaCompiler = new ErrorProneJavaCompiler();
    List<String> args = Lists.newArrayList("-d", tempDir.getRoot().getAbsolutePath(), "-proc:none", "-Xep:ChainingConstructorIgnoresParameter:WARN");
    List<JavaFileObject> sources = fileManager.forResources(ChainingConstructorIgnoresParameter.class, "testdata/ChainingConstructorIgnoresParameterPositiveCases.java");
    fileManager.close();
    JavaCompiler.CompilationTask task = errorProneJavaCompiler.getTask(printWriter, fileManager, diagnosticHelper.collector, args, null, sources);
    boolean succeeded = task.call();
    assertThat(succeeded).isTrue();
    Matcher<? super Iterable<Diagnostic<? extends JavaFileObject>>> matcher = hasItem(diagnosticMessage(containsString("[ChainingConstructorIgnoresParameter]")));
    assertTrue(matcher.matches(diagnosticHelper.getDiagnostics()));
    // reset state between compilations
    diagnosticHelper.clearDiagnostics();
    fileManager = new ErrorProneInMemoryFileManager();
    sources = fileManager.forResources(ChainingConstructorIgnoresParameter.class, "testdata/ChainingConstructorIgnoresParameterPositiveCases.java");
    fileManager.close();
    args.remove("-Xep:ChainingConstructorIgnoresParameter:WARN");
    task = errorProneJavaCompiler.getTask(printWriter, fileManager, diagnosticHelper.collector, args, null, sources);
    succeeded = task.call();
    assertThat(succeeded).isFalse();
    assertTrue(matcher.matches(diagnosticHelper.getDiagnostics()));
}

Example 58 with JavaCompiler

use of javax.tools.JavaCompiler in project error-prone by google.

the class CompilationTestHelper method checkWellFormed.

private void checkWellFormed(Iterable<JavaFileObject> sources, String[] args) {
    JavaCompiler compiler = JavacTool.create();
    OutputStream outputStream = new ByteArrayOutputStream();
    String[] remainingArgs = null;
    try {
        remainingArgs = ErrorProneOptions.processArgs(args).getRemainingArgs();
    } catch (InvalidCommandLineOptionException e) {
        fail("Exception during argument processing: " + e);
    }
    CompilationTask task = compiler.getTask(new PrintWriter(new BufferedWriter(new OutputStreamWriter(outputStream, UTF_8)), /*autoFlush=*/
    true), fileManager, null, buildArguments(Arrays.asList(remainingArgs)), null, sources);
    boolean result = task.call();
    assertWithMessage(String.format("Test program failed to compile with non Error Prone error: %s", outputStream.toString())).that(result).isTrue();
}

Example 59 with JavaCompiler

use of javax.tools.JavaCompiler in project error-prone by google.

the class CompilerBasedTest method compile.

protected void compile(TreeScanner scanner, JavaFileObject fileObject) {
    JavaCompiler compiler = JavacTool.create();
    DiagnosticCollector<JavaFileObject> diagnosticsCollector = new DiagnosticCollector<JavaFileObject>();
    StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnosticsCollector, Locale.ENGLISH, UTF_8);
    JavacTaskImpl task = (JavacTaskImpl) compiler.getTask(CharStreams.nullWriter(), fileManager, diagnosticsCollector, ImmutableList.<String>of(), null, ImmutableList.of(fileObject));
    try {
        this.sourceFile = SourceFile.create(fileObject);
        Iterable<? extends CompilationUnitTree> trees = task.parse();
        task.analyze();
        for (CompilationUnitTree tree : trees) {
            scanner.scan((JCCompilationUnit) tree);
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    this.context = task.getContext();
}

Example 60 with JavaCompiler

use of javax.tools.JavaCompiler in project hibernate-orm by hibernate.

the class CompilationStatement method compile.

private void compile(List<File> sourceFiles) throws Exception {
    List<String> options = createJavaOptions();
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
    StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
    Iterable<? extends JavaFileObject> compilationUnits = fileManager.getJavaFileObjectsFromFiles(sourceFiles);
    compileSources(options, compiler, diagnostics, fileManager, compilationUnits);
    compilationDiagnostics.addAll(diagnostics.getDiagnostics());
    fileManager.close();
}