Maven: resourc ecompiler handles big files

plugins/maven/src/main/java/org/jetbrains/idea/maven/compiler/MavenResourceCompiler.java

@@ -377,7 +377,15 @@ public class MavenResourceCompiler implements ClassPostProcessingCompiler {
       try {
         outputFile.getParentFile().mkdirs();
 
-        if (eachItem.isFiltered()) {
+        boolean shouldFilter = eachItem.isFiltered();
+        if (sourceFile.length() > 10 * 1024 * 1024) {
+          context.addMessage(CompilerMessageCategory.WARNING,
+                             "Maven: File is too big to be filtered. Most likely it is a binary file and should be excluded from filtering.",
+                             sourceVirtualFile.getUrl(), -1, -1);
+          shouldFilter = false;
+        }
+
+        if (shouldFilter) {
           String charset = sourceVirtualFile.getCharset().name();
           String text = new String(FileUtil.loadFileBytes(sourceFile), charset);
           String escapedCharacters = "properties".equals(sourceVirtualFile.getExtension()) ? "\\" : null;

plugins/maven/src/test/java/org/jetbrains/idea/maven/compiler/ResourceFilteringTest.java

@@ -3,8 +3,8 @@ package org.jetbrains.idea.maven.compiler;
 import com.intellij.openapi.vfs.VfsUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import org.jetbrains.idea.maven.MavenImportingTestCase;
-import org.jetbrains.idea.maven.importing.MavenRootModelAdapter;
 import org.jetbrains.idea.maven.importing.MavenDefaultModifiableModelsProvider;
+import org.jetbrains.idea.maven.importing.MavenRootModelAdapter;
 
 import java.io.IOException;
 
@@ -675,6 +675,26 @@ public class ResourceFilteringTest extends MavenImportingTestCase {
                  "value2=\\value\n");
   }
 
+  public void testDoNotFilterButCopyBigFiles() throws Exception {
+    createProjectSubFile("resources/file.xyz").setBinaryContent(new byte[1024 * 1024 * 20]);
+
+    importProject("<groupId>test</groupId>" +
+                  "<artifactId>project</artifactId>" +
+                  "<version>1</version>" +
+
+                  "<build>" +
+                  "  <resources>" +
+                  "    <resource>" +
+                  "      <directory>resources</directory>" +
+                  "      <filtering>true</filtering>" +
+                  "    </resource>" +
+                  "  </resources>" +
+                  "</build>");
+    compileModules("project");
+
+    assertNotNull(myProjectPom.getParent().findFileByRelativePath("target/classes/file.xyz"));
+  }
+
   private void assertResult(String relativePath, String content) throws IOException {
     assertResult(myProjectPom, relativePath, content);
   }