From e13b66e920336b3d786159ccda1317b63a36c2e2 Mon Sep 17 00:00:00 2001
From: Sanne Grinovero <sanne@hibernate.org>
Date: Tue, 6 Oct 2020 14:20:28 +0100
Subject: [PATCH] Use a Clener Substitution rather than reporting unsupported
 elements at runtime

---
 extensions/tika/runtime/pom.xml               |  5 ++++
 .../CleanerNotSupportedSubstitution.java      | 29 +++++++++++++++++++
 integration-tests/tika/pom.xml                |  1 -
 3 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 extensions/tika/runtime/src/main/java/io/quarkus/tika/graalvm/CleanerNotSupportedSubstitution.java

diff --git a/extensions/tika/runtime/pom.xml b/extensions/tika/runtime/pom.xml
index ca3b70f5d630c..8a2cd8d56be45 100644
--- a/extensions/tika/runtime/pom.xml
+++ b/extensions/tika/runtime/pom.xml
@@ -73,6 +73,11 @@
             <groupId>org.jboss.logging</groupId>
             <artifactId>commons-logging-jboss-logging</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.graalvm.nativeimage</groupId>
+            <artifactId>svm</artifactId>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/extensions/tika/runtime/src/main/java/io/quarkus/tika/graalvm/CleanerNotSupportedSubstitution.java b/extensions/tika/runtime/src/main/java/io/quarkus/tika/graalvm/CleanerNotSupportedSubstitution.java
new file mode 100644
index 0000000000000..f882e8676806c
--- /dev/null
+++ b/extensions/tika/runtime/src/main/java/io/quarkus/tika/graalvm/CleanerNotSupportedSubstitution.java
@@ -0,0 +1,29 @@
+package io.quarkus.tika.graalvm;
+
+@com.oracle.svm.core.annotate.Substitute
+@com.oracle.svm.core.annotate.TargetClass(className = "org.apache.poi.poifs.nio.CleanerUtil")
+public final class CleanerNotSupportedSubstitution {
+
+    /**
+     * <code>true</code>, if this platform supports unmapping mmapped files.
+     */
+    public static final boolean UNMAP_SUPPORTED = false;
+
+    /**
+     * if {@link #UNMAP_SUPPORTED} is {@code false}, this contains the reason
+     * why unmapping is not supported.
+     */
+    public static final String UNMAP_NOT_SUPPORTED_REASON = "Not supported on GraalVM native-image";
+
+    private static final org.apache.poi.poifs.nio.CleanerUtil.BufferCleaner CLEANER = null;
+
+    /**
+     * Reference to a BufferCleaner that does unmapping.
+     * 
+     * @return {@code null} if not supported.
+     */
+    public static org.apache.poi.poifs.nio.CleanerUtil.BufferCleaner getCleaner() {
+        return CLEANER;
+    }
+
+}
diff --git a/integration-tests/tika/pom.xml b/integration-tests/tika/pom.xml
index c0f0a220ab3dc..d14a12ce1fcdc 100644
--- a/integration-tests/tika/pom.xml
+++ b/integration-tests/tika/pom.xml
@@ -149,7 +149,6 @@
                                     <cleanupServer>true</cleanupServer>
                                     <enableHttpUrlHandler>true</enableHttpUrlHandler>
                                     <graalvmHome>${graalvmHome}</graalvmHome>
-                                    <additionalBuildArgs>--report-unsupported-elements-at-runtime</additionalBuildArgs>
                                 </configuration>
                             </execution>
                         </executions>