diff --git a/allure-generator/src/main/java/io/qameta/allure/allure1/Allure1Plugin.java b/allure-generator/src/main/java/io/qameta/allure/allure1/Allure1Plugin.java
index dc85715ea..87976f42b 100644
--- a/allure-generator/src/main/java/io/qameta/allure/allure1/Allure1Plugin.java
+++ b/allure-generator/src/main/java/io/qameta/allure/allure1/Allure1Plugin.java
@@ -370,11 +370,12 @@ public static Status convert(final ru.yandex.qatools.allure.model.Status status)
     }
 
     private List<Parameter> getParameters(final TestCaseResult source) {
-        final TreeSet<Parameter> parametersSet = new TreeSet<>(
-                comparing(Parameter::getName, nullsFirst(naturalOrder()))
-                        .thenComparing(Parameter::getValue, nullsFirst(naturalOrder()))
-        );
-        parametersSet.addAll(convertList(source.getParameters(), this::hasArgumentType, this::convert));
+        final List<Parameter> parameters = convertList(source.getParameters(), this::hasArgumentType, this::convert);
+        if (Objects.isNull(parameters)) {
+            return new ArrayList<>();
+        }
+        final Set<Parameter> parametersSet = new TreeSet<>(PARAMETER_COMPARATOR);
+        parametersSet.addAll(parameters);
         return new ArrayList<>(parametersSet);
     }
 
@@ -467,7 +468,7 @@ private Optional<TestSuiteResult> readXmlTestSuiteFile(final Path source) {
         try (InputStream is = Files.newInputStream(source)) {
             return Optional.of(xmlMapper.readValue(is, TestSuiteResult.class));
         } catch (IOException e) {
-            LOGGER.error("Could not read xml result {}: {}", source, e);
+            LOGGER.error("Could not read xml result {}", source, e);
         }
         return Optional.empty();
     }
@@ -476,7 +477,7 @@ private Optional<TestSuiteResult> readJsonTestSuiteFile(final Path source) {
         try (InputStream is = Files.newInputStream(source)) {
             return Optional.of(jsonMapper.readValue(is, TestSuiteResult.class));
         } catch (IOException e) {
-            LOGGER.error("Could not read json result {}: {}", source, e);
+            LOGGER.error("Could not read json result {}", source, e);
             return Optional.empty();
         }
     }
diff --git a/allure-generator/src/main/java/io/qameta/allure/allure2/Allure2Plugin.java b/allure-generator/src/main/java/io/qameta/allure/allure2/Allure2Plugin.java
index 28550682e..41cbf1e84 100644
--- a/allure-generator/src/main/java/io/qameta/allure/allure2/Allure2Plugin.java
+++ b/allure-generator/src/main/java/io/qameta/allure/allure2/Allure2Plugin.java
@@ -92,6 +92,10 @@ public class Allure2Plugin implements Reader {
             nullsLast(comparing(Time::getStart, nullsLast(naturalOrder())))
     );
 
+    private static final Comparator<Parameter> PARAMETER_COMPARATOR =
+            comparing(Parameter::getName, nullsFirst(naturalOrder()))
+                    .thenComparing(Parameter::getValue, nullsFirst(naturalOrder()));
+
     private final ObjectMapper mapper = JsonMapper.builder()
             .enable(MapperFeature.USE_WRAPPER_NAME_AS_PROPERTY_NAME)
             .enable(MapperFeature.ACCEPT_CASE_INSENSITIVE_ENUMS)
@@ -316,11 +320,16 @@ private Time convert(final Long start, final Long stop) {
     }
 
     private List<Parameter> getParameters(final TestResult result) {
-        final TreeSet<Parameter> parametersSet = new TreeSet<>(
-                comparing(Parameter::getName, nullsFirst(naturalOrder()))
-                        .thenComparing(Parameter::getValue, nullsFirst(naturalOrder()))
+        final List<Parameter> parameters = convertList(
+                result.getParameters(),
+                p -> !HIDDEN.equals(p.getMode()),
+                this::convert
         );
-        parametersSet.addAll(convertList(result.getParameters(), p -> !HIDDEN.equals(p.getMode()), this::convert));
+        if (Objects.isNull(parameters)) {
+            return new ArrayList<>();
+        }
+        final Set<Parameter> parametersSet = new TreeSet<>(PARAMETER_COMPARATOR);
+        parametersSet.addAll(parameters);
         return new ArrayList<>(parametersSet);
     }
 
diff --git a/allure-generator/src/main/java/io/qameta/allure/environment/Allure1EnvironmentPlugin.java b/allure-generator/src/main/java/io/qameta/allure/environment/Allure1EnvironmentPlugin.java
index d3977c796..3c87cbbdc 100644
--- a/allure-generator/src/main/java/io/qameta/allure/environment/Allure1EnvironmentPlugin.java
+++ b/allure-generator/src/main/java/io/qameta/allure/environment/Allure1EnvironmentPlugin.java
@@ -23,7 +23,6 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 import java.util.function.Supplier;
 
 import static io.qameta.allure.allure1.Allure1Plugin.ENVIRONMENT_BLOCK_NAME;
@@ -51,13 +50,11 @@ protected List<EnvironmentItem> getData(final List<LaunchResults> launches) {
         return launchEnvironments.stream()
                 .collect(groupingBy(Map.Entry::getKey, LinkedHashMap::new, mapping(Map.Entry::getValue, toSet())))
                 .entrySet().stream()
-                .map(Allure1EnvironmentPlugin::aggregateItem)
+                .map(entry -> new EnvironmentItem()
+                        .setName(entry.getKey())
+                        .setValues(new ArrayList<>(entry.getValue()))
+                )
                 .collect(toList());
     }
 
-    private static EnvironmentItem aggregateItem(final Map.Entry<String, Set<String>> entry) {
-        return new EnvironmentItem()
-                .setName(entry.getKey())
-                .setValues(new ArrayList<>(entry.getValue()));
-    }
 }
diff --git a/allure-generator/src/main/java/io/qameta/allure/retry/RetryTrendItem.java b/allure-generator/src/main/java/io/qameta/allure/retry/RetryTrendItem.java
index f4fe1631c..e758c7930 100644
--- a/allure-generator/src/main/java/io/qameta/allure/retry/RetryTrendItem.java
+++ b/allure-generator/src/main/java/io/qameta/allure/retry/RetryTrendItem.java
@@ -27,6 +27,7 @@ public class RetryTrendItem extends TrendItem {
 
     private static final String RETRY_KEY = "retry";
 
+    @SuppressWarnings("PMD.ConstructorCallsOverridableMethod")
     public RetryTrendItem() {
         this.setMetric(RETRY_KEY, 0L);
         this.setMetric(RUN_KEY, 0L);
diff --git a/build.gradle.kts b/build.gradle.kts
index 099a98d7d..7965b4fa6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -95,7 +95,7 @@ subprojects {
             dependency("commons-beanutils:commons-beanutils:1.9.4")
             dependency("commons-io:commons-io:2.16.0")
             dependency("javax.xml.bind:jaxb-api:2.3.1")
-            dependency("net.sourceforge.pmd:pmd-java:6.55.0")
+            dependency("net.sourceforge.pmd:pmd-java:7.0.0")
             dependency("org.allurefw:allure1-model:1.0")
             dependency("org.apache.commons:commons-collections4:4.4")
             dependency("org.apache.commons:commons-lang3:3.14.0")
@@ -173,6 +173,7 @@ subprojects {
         toolVersion = dependencyManagement.managedVersions["net.sourceforge.pmd:pmd-java"]!!
         ruleSets = listOf()
         ruleSetFiles = rootProject.files("gradle/quality-configs/pmd/pmd.xml")
+        targetJdk = TargetJdk.VERSION_1_7
     }
 
     spotbugs {
diff --git a/gradle/quality-configs/pmd/pmd.xml b/gradle/quality-configs/pmd/pmd.xml
index 03e8b5871..eae465ea0 100644
--- a/gradle/quality-configs/pmd/pmd.xml
+++ b/gradle/quality-configs/pmd/pmd.xml
@@ -26,13 +26,10 @@
 
   <!-- Code style (https://pmd.github.io/pmd-6.0.1/pmd_rules_java_codestyle.html) -->
   <rule ref="category/java/codestyle.xml">
-    <exclude name="AbstractNaming"/>
     <exclude name="AtLeastOneConstructor"/>
-    <exclude name="AvoidFinalLocalVariable"/>
     <exclude name="CallSuperInConstructor"/>
     <exclude name="CommentDefaultAccessModifier"/>
     <exclude name="ConfusingTernary"/>
-    <exclude name="DefaultPackage"/>
     <exclude name="GenericsNaming"/>
     <exclude name="LinguisticNaming"/>
     <exclude name="LocalHomeNamingConvention"/> <!-- earlier j2ee group-->
@@ -48,6 +45,7 @@
     <exclude name="ShortVariable"/>
     <exclude name="TooManyStaticImports"/>
     <exclude name="UnnecessaryAnnotationValueElement"/>
+    <exclude name="UseDiamondOperator"/>
     <exclude name="UselessParentheses"/>
   </rule>
 
@@ -60,16 +58,13 @@
   <!-- Design (https://pmd.github.io/pmd-6.0.1/pmd_rules_java_design.html) -->
   <rule ref="category/java/design.xml">
     <exclude name="AvoidCatchingGenericException"/>
+    <exclude name="CouplingBetweenObjects"/>
     <exclude name="DataClass"/>
-    <exclude name="ExcessiveClassLength"/> <!-- replaced by NcssCount -->
     <exclude name="ExcessiveImports"/>
-    <exclude name="ExcessiveMethodLength"/> <!-- replaced by NcssCount -->
     <exclude name="LawOfDemeter"/>
     <exclude name="CyclomaticComplexity"/> <!-- disabled in favour of checkstyle's CyclomaticComplexity check -->
     <exclude name="LoosePackageCoupling"/>
-    <exclude name="ModifiedCyclomaticComplexity"/>
     <exclude name="SignatureDeclareThrowsException"/>
-    <exclude name="StdCyclomaticComplexity"/>
     <exclude name="TooManyFields"/>
   </rule>
   <rule ref="category/java/design.xml/AvoidDeeplyNestedIfStmts">
@@ -106,13 +101,12 @@
   <rule ref="category/java/errorprone.xml">
     <exclude name="AvoidCatchingThrowable"/>
     <exclude name="AvoidFieldNameMatchingMethodName"/>
-    <exclude name="DataflowAnomalyAnalysis"/>
+    <exclude name="AvoidLiteralsInIfCondition"/>
     <exclude name="EmptyFinalizer"/>
     <exclude name="FinalizeDoesNotCallSuperFinalize"/>
     <exclude name="FinalizeOnlyCallsSuperFinalize"/>
     <exclude name="JUnitSpelling"/>
     <exclude name="JUnitStaticSuite"/>
-    <exclude name="LoggerIsNotStaticFinal"/>
     <exclude name="MissingSerialVersionUID"/>
     <exclude name="NullAssignment"/> <!-- disabled due to false positive for initialization with ternary operator -->
     <exclude name="StaticEJBFieldShouldBeFinal"/> <!-- earlier j2ee group-->
diff --git a/plugins/xctest-plugin/src/main/java/io/qameta/allure/xctest/ResultsUtils.java b/plugins/xctest-plugin/src/main/java/io/qameta/allure/xctest/ResultsUtils.java
index e4f6718f5..60f36d4c4 100644
--- a/plugins/xctest-plugin/src/main/java/io/qameta/allure/xctest/ResultsUtils.java
+++ b/plugins/xctest-plugin/src/main/java/io/qameta/allure/xctest/ResultsUtils.java
@@ -46,10 +46,10 @@ private ResultsUtils() {
     public static TestResult getTestResult(final Map<String, Object> props) {
         return new TestResult()
                 .setUid(UUID.randomUUID().toString())
-                .setName(ResultsUtils.getTestName(props))
-                .setStatus(ResultsUtils.getTestStatus(props))
-                .setFullName(ResultsUtils.getFullName(props))
-                .setTime(ResultsUtils.getTestTime(props))
+                .setName(getTestName(props))
+                .setStatus(getTestStatus(props))
+                .setFullName(getFullName(props))
+                .setTime(getTestTime(props))
                 .setTestStage(new StageResult());
     }
 
@@ -102,8 +102,8 @@ private static Time getStepTime(final Map<String, Object> props) {
     }
 
     private static long parseTime(final String time) {
-        final Double doubleTime = Double.parseDouble(time);
-        final int seconds = doubleTime.intValue();
-        return seconds * 1000;
+        final double doubleTime = Double.parseDouble(time);
+        final int seconds = (int) doubleTime;
+        return seconds * 1000L;
     }
 }