Example usage for org.eclipse.jdt.core JavaCore COMPILER_PB_UNUSED_OBJECT_ALLOCATION

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In this page you can find the example usage for org.eclipse.jdt.core JavaCore COMPILER_PB_UNUSED_OBJECT_ALLOCATION.

Prototype

String COMPILER_PB_UNUSED_OBJECT_ALLOCATION

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Document

Compiler option ID: Reporting Allocation of an Unused Object.

Usage

From source file:org.eclipse.che.jdt.quickfix.LocalCorrectionsQuickFixTest.java

License:Open Source License

@Test
public void testUnusedObjectAllocation1() throws Exception {
    Hashtable options = JavaCore.getOptions();
    options.put(JavaCore.COMPILER_PB_UNUSED_OBJECT_ALLOCATION, JavaCore.WARNING);
    JavaCore.setOptions(options);//from  w ww .  j av a  2  s  . c  o m

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("            /*a*/new Object()/*b*/;/*c*/\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 5);

    String[] expected = new String[5];
    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("            /*a*/return new Object()/*b*/;/*c*/\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[1] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    @SuppressWarnings(\"unused\")\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("            /*a*/new Object()/*b*/;/*c*/\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[2] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("            /*a*/Object object = new Object()/*b*/;/*c*/\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[3] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    private Object object;\n");
    buf.append("\n");
    buf.append("    public Object foo() {\n");
    buf.append("        if (Boolean.TRUE) {\n");
    buf.append("            /*a*/object = new Object()/*b*/;/*c*/\n");
    buf.append("        }\n");
    buf.append("        return null;\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[4] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
}

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From source file:org.eclipse.che.jdt.quickfix.LocalCorrectionsQuickFixTest.java

License:Open Source License

@Test
public void testUnusedObjectAllocation2() throws Exception {
    Hashtable options = JavaCore.getOptions();
    options.put(JavaCore.COMPILER_PB_UNUSED_OBJECT_ALLOCATION, JavaCore.WARNING);
    JavaCore.setOptions(options);// w w w  . j  a  v a 2  s .c  om

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 6);

    String[] expected = new String[6];
    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/throw new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[0] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[1] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    @SuppressWarnings(\"unused\")\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[2] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/return new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[3] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/Exception exception = new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[4] = buf.toString();

    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    private Exception exception;\n");
    buf.append("\n");
    buf.append("    public void foo() {\n");
    buf.append("        /*a*/exception = new Exception()/*b*/;/*c*/\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected[5] = buf.toString();

    assertExpectedExistInProposals(proposals, expected);
}

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From source file:org.eclipse.che.jdt.quickfix.LocalCorrectionsQuickFixTest.java

License:Open Source License

@Test
public void testUnusedObjectAllocation3() throws Exception {
    Hashtable options = JavaCore.getOptions();
    options.put(JavaCore.COMPILER_PB_UNUSED_OBJECT_ALLOCATION, JavaCore.WARNING);
    JavaCore.setOptions(options);//  w ww  .  java 2  s.c  om

    IPackageFragment pack1 = fSourceFolder.createPackageFragment("test1", false, null);
    StringBuffer buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    private Object name;\n");
    buf.append("    public E() {\n");
    buf.append("        if (name == null)\n");
    buf.append("            new IllegalArgumentException();\n");
    buf.append("    }\n");
    buf.append("}\n");
    ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);

    CompilationUnit astRoot = getASTRoot(cu);
    ArrayList proposals = collectCorrections(cu, astRoot);

    assertCorrectLabels(proposals);
    assertNumberOfProposals(proposals, 5);

    String expected = new String();
    buf = new StringBuffer();
    buf.append("package test1;\n");
    buf.append("\n");
    buf.append("public class E {\n");
    buf.append("    private Object name;\n");
    buf.append("    public E() {\n");
    buf.append("        if (name == null)\n");
    buf.append("            throw new IllegalArgumentException();\n");
    buf.append("    }\n");
    buf.append("}\n");
    expected = buf.toString();

    assertExpectedExistInProposals(proposals, new String[] { expected });
}

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