src.samples.java.ex.LEST_Sample Maven / Gradle / Ivy

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An auxiliary findbugs.sourceforge.net plugin for java bug detectors that fall outside the narrow scope of detectors to be packaged with the product itself.
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package ex;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;

import com.google.common.base.Throwables;

@SuppressWarnings("all")
public class LEST_Sample {
    public Date testLest1(String input) {
        try {
            DateFormat df = new SimpleDateFormat("YYYY");
            return df.parse(input);
        } catch (ParseException pe) {
            throw new IllegalArgumentException(pe.getMessage());
        }
    }

    public Date testLest2(String input) {
        try {
            DateFormat df = new SimpleDateFormat("YYYY");
            return df.parse(input);
        } catch (ParseException pe) {
            throw new IllegalArgumentException(pe.getMessage(), pe);
        }
    }

    public Date testLestFP1(String input) throws ParseException {
        try {
            DateFormat df = new SimpleDateFormat("YYYY");
            return df.parse(input);
        } catch (ParseException pe) {
            throw pe;
        }
    }

    public Date testLestFP2(String input) {
        try {
            DateFormat df = new SimpleDateFormat("YYYY");
            return df.parse(input);
        } catch (ParseException pe) {
            IllegalArgumentException iae = new IllegalArgumentException(pe.getMessage());
            iae.initCause(pe);
            throw iae;
        }
    }

    public void testLestFP3(String s) {
        double d;
        try {
            d = Double.parseDouble(s);
        } catch (NumberFormatException nfe) {

        }
        throw new RuntimeException("ok");
    }

    public void testLestFP4(String s) throws Exception {
        double d;
        try {
            d = Double.parseDouble(s);
        } catch (NumberFormatException nfe) {
            Exception e = wrap(nfe);
            throw e;
        }
    }

    public void testLestFP5(String s) throws Exception {
        double d;
        try {
            d = Double.parseDouble(s);
        } catch (NumberFormatException nfe) {
            Exception e = wrapStatic(nfe);
            throw e;
        }
    }

    public void testLestFP6(String s) throws Exception {
        double d;
        try {
            d = Double.parseDouble(s);
        } finally {
            throw new Exception("Yikes");
        }
    }

    public void testLestFP7(String s) {
        try {
            double d = Double.parseDouble(s);
        } catch (NumberFormatException e) {
            throw new RuntimeException(e);
        }
    }

    public void testLestFP8() {
        try {
            Thread.sleep(10L);
        } catch (Exception ex) {
            throw new AssertionError(ex);
        }
    }

    public void testLestFP3510540() throws Exception {
        boolean bool = true;
        if (bool) {
            try {
                throw new IOException();
            } catch (IOException ioe) {
                throw new Exception(ioe);
            }
        } else {
            throw new Exception("message");
        }
    }

    public double testAssertFPLest(String input) {
        try {
            return Double.valueOf(input);
        } catch (NumberFormatException e) {
            throw new AssertionError(e);
        }
    }

    public void fpThrowables() {
        try {
            InputStream is = new FileInputStream("foo");
        } catch (IOException e) {
            throw Throwables.propagate(e);
        }
    }

    public void fpUseCause(Method method, Object target, Object... args) throws Throwable {
        try {
            method.invoke(target, args);
        } catch (InvocationTargetException e) {
            throw e.getCause();
        }
    }

    private Exception wrap(Exception e) {
        return new Exception(e);
    }

    private static Exception wrapStatic(Exception e) {
        return new Exception(e);
    }

    public void testFPSuppressedLest(String s) {
        try {
            double d = Double.parseDouble(s);
        } catch (NumberFormatException e) {
            RuntimeException r = new RuntimeException();
            r.addSuppressed(e);
            throw r;
        }
    }

    public void testFPUncheckedIOException290(List s) throws IOException {
        try {
            List fis = s.stream().map(ss -> {
                try {
                    return new FileInputStream(ss);
                } catch (IOException e) {
                    throw new UncheckedIOException(e);
                }
            }).collect(Collectors.toList());
        } catch (UncheckedIOException e) {
            throw e.getCause();
        }
    }

    static Class testFP226(final String clazz) {
        if (clazz != null) {
            try {
                return Class.forName(clazz);
            } catch (final ClassNotFoundException e) {
                throw new UnsupportedOperationException(e);
            }
        }
        throw new NullPointerException();
    }
}