Method perform has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring. Open
@Override
public void perform(final UiController uiController, final View view) {
Object value = null;
if (this.delayMillis == 0) {
do {- Read upRead up
Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
T is not used in the class. Open
public final class ViewActionWait<T extends TextView> implements ViewAction {- Read upRead up
- Exclude checks
Type parameters that aren't used are dead code, which can only distract and possibly confuse developers during maintenance. Therefore, unused type parameters should be removed.
Noncompliant Code Example
int <T> Add(int a, int b) // Noncompliant; <T> is ignored
{
return a + b;
}
Compliant Solution
int Add(int a, int b)
{
return a + b;
}
Identical blocks of code found in 2 locations. Consider refactoring. Open
if (this.viewId == R.id.preview) {
final CheckBox checkbox = view.findViewById(this.viewId);
value = checkbox.isChecked();
}- Read upRead up
Duplicated Code
Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:
Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.
When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).
Tuning
This issue has a mass of 40.
We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.
The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.
If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.
See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.
Refactorings
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Identical blocks of code found in 2 locations. Consider refactoring. Open
if (this.viewId == R.id.preview) {
final CheckBox checkbox = view.findViewById(this.viewId);
value = checkbox.isChecked();
}- Read upRead up
Duplicated Code
Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:
Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.
When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).
Tuning
This issue has a mass of 40.
We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.
The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.
If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.
See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.
Refactorings
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76
Line is longer than 100 characters (found 102). Open
* This class doesn't need a {@link Logger} because the method {@link ViewActionWait#getDescription()}- Read upRead up
- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Wrong lexicographical order for 'java.util.logging.Logger' import. Should be before 'org.hamcrest.Matcher'. Open
import java.util.logging.Logger;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 103). Open
* Let MobileRT continue processing for some time, or to become idle in case {@code 0} milliseconds- Read upRead up
- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
'}' at column 13 should be alone on a line. Open
} while (this.expectedValue != null && !Objects.equals(value, this.expectedValue));- Read upRead up
- Exclude checks
Checks the placement of right curly braces ('}') for code blocks.This check supports if-else, try-catch-finally blocks, while-loops, for-loops,method definitions, class definitions, constructor definitions,instance, static initialization blocks, annotation definitions and enum definitions.For right curly brace of expression blocks of arrays, lambdas and class instancesplease follow issue#5945.For right curly brace of enum constant please follow issue#7519.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 103). Open
* Let MobileRT continue processing for some time, or to become idle in case {@code 0} milliseconds- Read upRead up
- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Wrong lexicographical order for 'javax.annotation.Nullable' import. Should be before 'org.hamcrest.Matcher'. Open
import javax.annotation.Nullable;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Extra separation in import group before 'java.util.Objects' Open
import java.util.Objects;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 106). Open
public ViewActionWait(final int delayMillis, final int viewId, @Nullable final Object expectedValue) {- Read upRead up
- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Extra separation in import group before 'org.hamcrest.Matcher' Open
import org.hamcrest.Matcher;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Extra separation in import group before 'androidx.test.espresso.Espresso' Open
import androidx.test.espresso.Espresso;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
<p> tag should be preceded with an empty line.</p> Open
* <p>- Read upRead up
- Exclude checks
Checks the Javadoc paragraph.
Checks that:
- There is one blank line between each of two paragraphs.
- Each paragraph but the first has <p> immediately before the first word, withno space after.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
<p> tag should be placed immediately before the first word, with no space after.</p> Open
* <p>- Read upRead up
- Exclude checks
Checks the Javadoc paragraph.
Checks that:
- There is one blank line between each of two paragraphs.
- Each paragraph but the first has <p> immediately before the first word, withno space after.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Wrong lexicographical order for 'java.util.Objects' import. Should be before 'org.hamcrest.Matcher'. Open
import java.util.Objects;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Line is longer than 100 characters (found 140). Open
} while (this.expectedValue != null && !Objects.equals(value, this.expectedValue) && System.currentTimeMillis() < endInstantMs);- Read upRead up
- Exclude checks
Checks for long lines.
Rationale: Long lines are hard to read in printouts or if developershave limited screen space for the source code, e.g. if the IDEdisplays additional information like project tree, class hierarchy,etc.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
Extra separation in import group before 'javax.annotation.Nullable' Open
import javax.annotation.Nullable;- Read upRead up
- Exclude checks
Checks that the groups of import declarations appear in the order specifiedby the user. If there is an import but its group is not specified in theconfiguration such an import should be placed at the end of the import list.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
'}' at column 13 should be alone on a line. Open
} while (this.expectedValue != null && !Objects.equals(value, this.expectedValue) && System.currentTimeMillis() < endInstantMs);- Read upRead up
- Exclude checks
Checks the placement of right curly braces ('}') for code blocks.This check supports if-else, try-catch-finally blocks, while-loops, for-loops,method definitions, class definitions, constructor definitions,instance, static initialization blocks, annotation definitions and enum definitions.For right curly brace of expression blocks of arrays, lambdas and class instancesplease follow issue#5945.For right curly brace of enum constant please follow issue#7519.
This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.