Showing 14,752 of 14,752 total issues
Define a constant instead of duplicating this literal "Users" 3 times. Open
ResultSet rs = getResultSet("SELECT COUNT(*) FROM " + DBKernel.delimitL("Users") + " WHERE " + DBKernel.delimitL("Zugriffsrecht") + " = " + Users.ADMIN + " AND "
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Don't try to be smarter than the JVM, remove this call to run the garbage collector. Open
System.gc();
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Calling System.gc()
or Runtime.getRuntime().gc()
is a bad idea for a simple reason: there is no way to know exactly what
will be done under the hood by the JVM because the behavior will depend on its vendor, version and options:
- Will the whole application be frozen during the call?
- Is the
-XX:DisableExplicitGC
option activated? - Will the JVM simply ignore the call?
- ...
Like for System.gc()
, there is no reason to manually call runFinalization()
to force the call of finalization methods of
any objects pending finalization.
An application relying on these unpredictable methods is also unpredictable and therefore broken. The task of running the garbage collector and
calling finalize()
methods should be left exclusively to the JVM.
Define a constant instead of duplicating this literal "Kosten" 6 times. Open
MyTable kits = new MyTable("Kits", new String[]{"Bezeichnung","Testanbieter","ZertifikatNr","Gueltigkeit","Zertifizierungssystem","AnbieterAngebot","Kosten","KostenEinheit",
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "Aufbereitungsverfahren" 5 times. Open
"Einheiten","Probenmaterial","Aufbereitungsverfahren","Nachweisverfahren",
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "Telefon" 4 times. Open
"ALTER TABLE " + DBKernel.delimitL("Station") + " ADD COLUMN " + DBKernel.delimitL("Telefon") + " VARCHAR(30) BEFORE " + DBKernel.delimitL("Kontaktadresse"), false);
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Refactor this method to reduce its Cognitive Complexity from 98 to the 15 allowed. Open
public static void check4Updates_176_177() {
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Cognitive Complexity is a measure of how hard the control flow of a method is to understand. Methods with high Cognitive Complexity will be difficult to maintain.
See
Define a constant instead of duplicating this literal "GueltigkeitsBereiche" 3 times. Open
|| tableName.equals("GueltigkeitsBereiche") || tableName.equals("Kostenkatalog") || tableName.equals("Kostenkatalogpreise")
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal " WHERE " 3 times. Open
sql = "UPDATE " + DBKernel.delimitL(tableName) + " SET " + sql3.substring(0, sql3.length() - 1) + " WHERE " + DBKernel.delimitL("ID") + "=?";
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "fulltext" 3 times. Open
if (bibitem.getField("fulltext") != null || bibitem.getField("pdf") != null) {
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal " CALL " 3 times. Open
stmt.execute("CREATE TRIGGER " + DBKernel.delimitL("A_" + tableName + "_U") + " AFTER UPDATE ON " + DBKernel.delimitL(tableName) + " FOR EACH ROW " + " CALL "
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Refactor this method to reduce its Cognitive Complexity from 143 to the 15 allowed. Open
private String doFields(final PreparedStatement ps, final MyTable myT, ResultSet rs, final Statement anfrage, String sql) {
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Cognitive Complexity is a measure of how hard the control flow of a method is to understand. Methods with high Cognitive Complexity will be difficult to maintain.
See
Refactor this method to reduce its Cognitive Complexity from 44 to the 15 allowed. Open
private void checkeDoppeltVergebeneDKZs(final Statement anfrage) {
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Cognitive Complexity is a measure of how hard the control flow of a method is to understand. Methods with high Cognitive Complexity will be difficult to maintain.
See
Refactor this method to reduce its Cognitive Complexity from 63 to the 15 allowed. Open
private static boolean doRestore(String path, final MyDBTable myDB, final File targzFile, final boolean silent, boolean doReconnect) {
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Cognitive Complexity is a measure of how hard the control flow of a method is to understand. Methods with high Cognitive Complexity will be difficult to maintain.
See
Define a constant instead of duplicating this literal "journal" 3 times. Open
if (bibitem.getField("journal") != null) psmt.setString(5, bibitem.getField("journal"));
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Don't try to be smarter than the JVM, remove this call to run the garbage collector. Open
System.gc();
- Read upRead up
- Create a ticketCreate a ticket
- Exclude checks
Calling System.gc()
or Runtime.getRuntime().gc()
is a bad idea for a simple reason: there is no way to know exactly what
will be done under the hood by the JVM because the behavior will depend on its vendor, version and options:
- Will the whole application be frozen during the call?
- Is the
-XX:DisableExplicitGC
option activated? - Will the JVM simply ignore the call?
- ...
Like for System.gc()
, there is no reason to manually call runFinalization()
to force the call of finalization methods of
any objects pending finalization.
An application relying on these unpredictable methods is also unpredictable and therefore broken. The task of running the garbage collector and
calling finalize()
methods should be left exclusively to the JVM.
Define a constant instead of duplicating this literal "SELECT * FROM " 4 times. Open
ResultSet rs = DBKernel.getResultSet(anfrage, "SELECT * FROM " + DBKernel.delimitL(myT.getTablename()) +
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal " AND " 6 times. Open
+ (tableID != null ? " AND " + delimitL("ChangeLog") + "." + delimitL("TabellenID") + " = " + tableID : "")
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal "Infotabelle" 3 times. Open
ResultSet rs = getResultSet(conn, "SELECT " + delimitL("Wert") + " FROM " + delimitL("Infotabelle") + " WHERE " + delimitL("Parameter") + " = 'lastCache_" + tablename
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Define a constant instead of duplicating this literal " DESC" 3 times. Open
+ delimitL("ID") + " DESC"), true);
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Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.
Noncompliant Code Example
With the default threshold of 3:
public void run() { prepare("action1"); // Noncompliant - "action1" is duplicated 3 times execute("action1"); release("action1"); } @SuppressWarning("all") // Compliant - annotations are excluded private void method1() { /* ... */ } @SuppressWarning("all") private void method2() { /* ... */ } public String method3(String a) { System.out.println("'" + a + "'"); // Compliant - literal "'" has less than 5 characters and is excluded return ""; // Compliant - literal "" has less than 5 characters and is excluded }
Compliant Solution
private static final String ACTION_1 = "action1"; // Compliant public void run() { prepare(ACTION_1); // Compliant execute(ACTION_1); release(ACTION_1); }
Exceptions
To prevent generating some false-positives, literals having less than 5 characters are excluded.
Don't try to be smarter than the JVM, remove this call to run the garbage collector. Open
System.gc();
- Read upRead up
- Create a ticketCreate a ticket
- Exclude checks
Calling System.gc()
or Runtime.getRuntime().gc()
is a bad idea for a simple reason: there is no way to know exactly what
will be done under the hood by the JVM because the behavior will depend on its vendor, version and options:
- Will the whole application be frozen during the call?
- Is the
-XX:DisableExplicitGC
option activated? - Will the JVM simply ignore the call?
- ...
Like for System.gc()
, there is no reason to manually call runFinalization()
to force the call of finalization methods of
any objects pending finalization.
An application relying on these unpredictable methods is also unpredictable and therefore broken. The task of running the garbage collector and
calling finalize()
methods should be left exclusively to the JVM.