IGNITE-22669 Change maven.compiler.source to 11

.github/workflows/commit-check.yml

@@ -31,7 +31,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [ '8', '11' ]
+        java: [ '11' ]
     name: Check java code on JDK ${{ matrix.java }}
     steps:
       - uses: actions/checkout@v4
@@ -63,7 +63,6 @@ jobs:
           ./mvnw test-compile -Pall-java,licenses,lgpl,checkstyle,examples,all-scala,scala,check-licenses -B -V
 
       - name: Run abandoned tests checks.
-        if: ${{ matrix.java == '8' }}
         run : |
           ./mvnw test -Pcheck-test-suites,all-java,all-scala,scala -B -V
 

.github/workflows/publish-snapshot.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v2
         with:
-          java-version: 8
+          java-version: 11
           distribution: 'adopt'
           server-id: apache.snapshots.https
           server-username: NEXUS_USER

examples/README.md

@@ -6,8 +6,8 @@ Instructions on how to start examples can be found in [README.txt](README.txt).
 
 How to start examples in the developer's environment, please see [DEVNOTES.txt](DEVNOTES.txt).
 
-## Running examples on JDK 9/10/11
-Ignite uses proprietary SDK APIs that are not available by default. See also [How to run Ignite on JDK 9,10 and 11](https://ignite.apache.org/docs/latest/setup#running-ignite-with-java-11-or-later)
+## Running examples
+Ignite uses proprietary SDK APIs that are not available by default. See also [How to run Ignite](https://ignite.apache.org/docs/latest/setup#running-ignite-with-java-11-or-later)
 
 To set up local IDE to easier access to examples, it is possible to add following options as default for all applications
 

examples/pom-standalone-lgpl.xml

@@ -27,8 +27,8 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
 
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 

examples/pom-standalone.xml

@@ -27,8 +27,8 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
 
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 

modules/checkstyle/pom.xml

@@ -37,8 +37,8 @@
     <version>${revision}</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
         <maven.flatten.file.name>pom-installed.xml</maven.flatten.file.name>
         <revision>2.17.0-SNAPSHOT</revision>
         <checkstyle.puppycrawl.version>8.45</checkstyle.puppycrawl.version>

modules/clients/src/test/java/org/apache/ignite/jdbc/thin/JdbcThinConnectionSSLTest.java

@@ -332,9 +332,7 @@ public void testCustomCiphersOnServer() throws Exception {
      * @throws Exception If failed.
      *
      * Note: Disabled cipher suite can be enabled via Java Security property "jdk.tls.disabledAlgorithms" or in
-     * <JRE_8_HOME>/lib/security/java.security file.
-     *
-     * Note: java.security file location may be changed for Java 9+ version
+     * <JAVA_HOME>/conf/security/java.security file.
      */
     @Test
     public void testDisabledCustomCipher() throws Exception {
@@ -373,9 +371,7 @@ public void testDisabledCustomCipher() throws Exception {
      * @throws Exception If failed.
      *
      * Note: Disabled cipher suite can be enabled via Java Security property "jdk.tls.disabledAlgorithms" or in
-     * <JRE_8_HOME>/lib/security/java.security file.
-     *
-     * Note: java.security file location may be changed for Java 9+ version
+     * <JAVA_HOME>/conf/security/java.security file.
      */
     @Test
     public void testUnsupportedCustomCipher() throws Exception {

modules/compatibility/src/test/java/org/apache/ignite/compatibility/persistence/PersistenceBasicCompatibilityTest.java

@@ -108,7 +108,7 @@ public void testNodeStartByOldVersionPersistenceData() throws Exception {
             Assume.assumeTrue("Skipped on jdk " + U.jdkVersion(),
                 VER_2_12_0.compareTo(IgniteReleasedVersion.fromString(version)) < 0);
         }
-        else if (majorJavaVer > 8) {
+        else if (majorJavaVer == 11) {
             Assume.assumeTrue("Skipped on jdk " + U.jdkVersion(),
                 VER_2_3_0.compareTo(IgniteReleasedVersion.fromString(version)) < 0);
         }

modules/core/src/main/java/org/apache/ignite/internal/processors/platform/memory/PlatformMemoryPool.java

@@ -17,7 +17,7 @@
 
 package org.apache.ignite.internal.processors.platform.memory;
 
-import org.apache.ignite.internal.util.GridCleaner;
+import java.lang.ref.Cleaner;
 
 import static org.apache.ignite.internal.processors.platform.memory.PlatformMemoryUtils.POOL_HDR_OFF_MEM_1;
 import static org.apache.ignite.internal.processors.platform.memory.PlatformMemoryUtils.POOL_HDR_OFF_MEM_2;
@@ -50,7 +50,8 @@ public class PlatformMemoryPool {
     public PlatformMemoryPool() {
         poolPtr = allocatePool();
 
-        GridCleaner.create(this, new CleanerRunnable(poolPtr));
+        Cleaner cleaner = Cleaner.create();
+        cleaner.register(this, new CleanerRunnable(poolPtr));
     }
 
     /**

modules/core/src/main/java/org/apache/ignite/internal/suggestions/JvmConfigurationSuggestions.java

@@ -42,9 +42,6 @@ public class JvmConfigurationSuggestions {
     /** */
     private static final String SERVER = "-server";
 
-    /** */
-    private static final String USE_G1_GC = "-XX:+UseG1GC";
-
     /**
      * Checks JVM configurations and produces tuning suggestions.
      *
@@ -58,12 +55,6 @@ public static synchronized List<String> getSuggestions() {
         if (!U.jvmName().toLowerCase().contains("server"))
             suggestions.add("Enable server mode for JVM (add '" + SERVER + "' to JVM options)");
 
-        if (!"11".equals(U.jdkVersion()))
-            suggestions.add("Switch to the most recent 11 JVM version");
-
-        if (U.jdkVersion().equals("1.8") && !args.contains(USE_G1_GC))
-            suggestions.add("Enable G1 Garbage Collector (add '" + USE_G1_GC + "' to JVM options)");
-
         if (!anyStartWith(args, XMX) && !anyStartWith(args, MX))
             suggestions.add("Specify JVM heap max size (add '" + XMX + "<size>[g|G|m|M|k|K]' to JVM options)");
 

modules/core/src/main/java/org/apache/ignite/internal/util/FeatureChecker.java

@@ -21,8 +21,8 @@
  * initialization effects.
  */
 public class FeatureChecker {
-    /** Required Options to Run on Java 9, 10, 11. */
-    public static final String JAVA_9_10_11_OPTIONS = "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED\n" +
+    /** Required Options to Run on Java 11. */
+    public static final String JAVA_11_OPTIONS = "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED\n" +
         "--add-exports=java.base/sun.nio.ch=ALL-UNNAMED\n" +
         "--add-exports=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED\n" +
         "--add-exports=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED\n" +
@@ -57,7 +57,7 @@ public class FeatureChecker {
     /** Java version specific warning to be added in case access failed */
     public static final String JAVA_VER_SPECIFIC_WARN =
         "\nPlease add the following parameters to JVM startup settings and restart the application: {parameters: " +
-            JAVA_9_10_11_OPTIONS +
+            JAVA_11_OPTIONS +
             "\n}" +
-            "\nSee https://apacheignite.readme.io/docs/getting-started#section-running-ignite-with-java-9-10-11 for more information.";
+            "\nSee https://ignite.apache.org/docs/latest/quick-start/java#running-ignite-with-java-11-or-later for more information.";
 }

modules/core/src/main/java/org/apache/ignite/internal/util/GridUnsafe.java

@@ -124,10 +124,7 @@ public abstract class GridUnsafe {
     private static final boolean HAS_JAVA_NIO_ACCESS_MEMORY_SEGMENT_PARAM = majorJavaVersion(jdkVersion()) >= 19;
 
     /** Cleaner code for direct {@code java.nio.ByteBuffer}. */
-    private static final DirectBufferCleaner DIRECT_BUF_CLEANER =
-        majorJavaVersion(jdkVersion()) < 9
-            ? new ReflectiveDirectBufferCleaner()
-            : new UnsafeDirectBufferCleaner();
+    private static final DirectBufferCleaner DIRECT_BUF_CLEANER = new UnsafeDirectBufferCleaner();
 
     /** JavaNioAccess object. If {@code null} then {@link #NEW_DIRECT_BUF_CONSTRUCTOR} should be available. */
     @Nullable private static final Object JAVA_NIO_ACCESS_OBJ;
@@ -1684,9 +1681,6 @@ private static Method newDirectBufferMethod(Object nioAccessObj) {
     @NotNull private static String getSharedSecretsPackage() {
         int javaVer = majorJavaVersion(jdkVersion());
 
-        if (javaVer < 9)
-            return "sun.misc";
-
         if (javaVer < 12)
             return "jdk.internal.misc";
 

modules/core/src/test/java/org/apache/ignite/testsuites/IgniteBasicTestSuite2.java

@@ -81,7 +81,6 @@
 import org.apache.ignite.internal.processors.metastorage.persistence.DmsDataWriterWorkerTest;
 import org.apache.ignite.internal.processors.metastorage.persistence.InMemoryCachedDistributedMetaStorageBridgeTest;
 import org.apache.ignite.internal.suggestions.JvmConfigurationSuggestionsTest;
-import org.apache.ignite.internal.util.GridCleanerTest;
 import org.apache.ignite.internal.util.collection.BitSetIntSetTest;
 import org.apache.ignite.internal.util.collection.ImmutableIntSetTest;
 import org.apache.ignite.internal.util.collection.IntHashMapTest;
@@ -155,8 +154,6 @@
 
     IgniteRejectConnectOnNodeStopTest.class,
 
-    GridCleanerTest.class,
-
     ClassSetTest.class,
 
     // Basic failure handlers.

modules/numa-allocator/README.md

@@ -17,11 +17,11 @@ $ sudo apt install numactl
 1. `RHEL` or `Cent OS`
 ```bash
 $ sudo yum groupinstall 'Development Tools'
-$ sudo yum install java-1.8.0-openjdk numactl-devel libstdc++-static
+$ sudo yum install java-11-openjdk numactl-devel libstdc++-static
 ```
 2. `Ubuntu` or `Debian`
 ```bash
-$ sudo apt install build-essential libnuma-dev openjdk-8-jdk
+$ sudo apt install build-essential libnuma-dev openjdk-11-jdk
 ```
 ## Usage
 ### Simple allocation strategy

modules/platforms/dotnet/examples/README.md

@@ -7,7 +7,7 @@
 # Requirements
 
 * [.NET 6 SDK](https://dotnet.microsoft.com/download/dotnet-core)
-* [JDK 8](https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html) or [JDK 11](https://www.oracle.com/java/technologies/javase-jdk11-downloads.html)
+* [JDK 11](https://www.oracle.com/java/technologies/javase-jdk11-downloads.html)
 
 Windows, Linux, and macOS are supported.