IDEMPIERE-5472 Unclosed resources (#1565)

* IDEMPIERE-5472 Unclosed resources

* IDEMPIERE-5472 Unclosed resources

org.adempiere.base.process/src/org/adempiere/process/HouseKeeping.java

@@ -31,6 +31,7 @@ package org.adempiere.process;
 
 import java.io.File;
 import java.io.FileWriter;
+import java.io.IOException;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.Timestamp;
@@ -103,7 +104,7 @@ public class HouseKeeping extends SvrProcess{
 			String pathFile = houseKeeping.getBackupFolder();
 			SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
 			String dateString = dateFormat.format(date);
-			FileWriter file = new FileWriter(pathFile+File.separator+tableName+dateString+".xml");
+			FileWriter file = null;
 			StringBuilder sql = new StringBuilder("SELECT * FROM ").append(tableName);
 			if (whereClause != null && whereClause.length() > 0)				
 				sql.append(" WHERE ").append(whereClause);
@@ -112,6 +113,7 @@ public class HouseKeeping extends SvrProcess{
 			StringBuffer linexml = null;
 			try
 			{
+				file = new FileWriter(pathFile+File.separator+tableName+dateString+".xml");
 				pstmt = DB.prepareStatement(sql.toString(), get_TrxName());
 				rs = pstmt.executeQuery();
 				while (rs.next()) {
@@ -121,7 +123,6 @@ public class HouseKeeping extends SvrProcess{
 				}
 				if(linexml != null)
 					file.write(linexml.toString());
-				file.close();
 			}
 			catch (Exception e)
 			{
@@ -129,6 +130,15 @@ public class HouseKeeping extends SvrProcess{
 			}
 			finally
 			{
+				if (file != null)
+				{
+					try {
+						file.close();
+					} catch (IOException e) {
+						e.printStackTrace();
+					}					
+				}				
+				
 				DB.close(rs, pstmt);
 				pstmt = null;
 				rs=null;

org.adempiere.base.process/src/org/compiere/process/ImportAccount.java

@@ -368,6 +368,7 @@ public class ImportAccount extends SvrProcess
 			.append("WHERE i.C_ElementValue_ID IS NOT NULL AND e.AD_Tree_ID IS NOT NULL")
 			.append(" AND i.I_IsImported='Y' AND Processed='N' AND i.AD_Client_ID=").append(m_AD_Client_ID);
 		int noParentUpdate = 0;
+		PreparedStatement updateStmt = null;
 		try
 		{
 			pstmt = DB.prepareStatement(sql.toString(), get_TrxName());
@@ -376,7 +377,7 @@ public class ImportAccount extends SvrProcess
 			String updateSQL = "UPDATE AD_TreeNode SET Parent_ID=?, SeqNo=? "
 				+ "WHERE AD_Tree_ID=? AND Node_ID=?";
 			//begin e-evolution vpj-cd 15 nov 2005 PostgreSQL
-			PreparedStatement updateStmt = DB.prepareStatement(updateSQL, ResultSet.TYPE_FORWARD_ONLY,ResultSet.CONCUR_UPDATABLE, get_TrxName());
+			updateStmt = DB.prepareStatement(updateSQL, ResultSet.TYPE_FORWARD_ONLY,ResultSet.CONCUR_UPDATABLE, get_TrxName());
 			//end	
 			//
 			while (rs.next())
@@ -405,6 +406,8 @@ public class ImportAccount extends SvrProcess
 		}
 		finally
 		{
+			DB.close(updateStmt);
+			updateStmt = null;
 			DB.close(rs, pstmt);
 			rs = null;
 			pstmt = null;

org.adempiere.base.process/src/org/compiere/process/ImportReportLine.java

@@ -434,10 +434,10 @@ public class ImportReportLine extends SvrProcess
 						.append(" WHERE I_ReportLine_ID=").append(I_ReportLine_ID).append(") ")
 						.append("WHERE PA_ReportSource_ID=").append(PA_ReportSource_ID).append(" ")
 						.append(clientCheck);
-					PreparedStatement pstmt_updateSource = DB.prepareStatement
+					PreparedStatement pstmt_updateSource = null;
-						(sqlt.toString(), get_TrxName());
 					try
 					{
+						pstmt_updateSource = DB.prepareStatement(sqlt.toString(), get_TrxName());
 						no = pstmt_updateSource.executeUpdate();
 						if (log.isLoggable(Level.FINEST)) log.finest("Update ReportSource = " + no + ", I_ReportLine_ID=" + I_ReportLine_ID + ", PA_ReportSource_ID=" + PA_ReportSource_ID);
 						noUpdateSource++;
@@ -487,6 +487,8 @@ public class ImportReportLine extends SvrProcess
 			pstmt_insertSource = null;
 			DB.close(pstmt_setImported);
 			pstmt_setImported = null;
+			DB.close(pstmt_deleteSource);
+			pstmt_deleteSource = null;
 		}
 
 		//	Set Error to indicator to not imported

org.adempiere.base.process/src/org/compiere/process/InOutGenerate.java

@@ -205,6 +205,7 @@ public class InOutGenerate extends SvrProcess
 		}
 		catch (Exception e)
 		{
+			DB.close(pstmt);
 			throw new AdempiereException(e);
 		}
 		return generate(pstmt);

org.adempiere.base.process/src/org/compiere/process/InvoiceGenerate.java

@@ -206,6 +206,7 @@ public class InvoiceGenerate extends SvrProcess
 		}
 		catch (Exception e)
 		{
+			DB.close(pstmt);
 			throw new AdempiereException(e);
 		}
 		return generate(pstmt);

org.adempiere.base.process/src/org/compiere/process/RollUpCosts.java

@@ -175,7 +175,9 @@ public class RollUpCosts extends SvrProcess {
 			    " JOIN PP_PRODUCT_BOMLINE bl ON b.PP_PRODUCT_BOM_ID = bl.PP_PRODUCT_BOM_ID" +
 			    " WHERE b.AD_Client_ID=" + getAD_Client_ID() +" AND b.IsActive='Y' AND bl.IsActive='Y' AND b.BOMType='A' AND b.BOMUse='A')";
 			Trx trx = Trx.get(get_TrxName(), false);
-		    RowSet results = DB.getRowSet(sql);
+			RowSet results = null;
+			try {
+				results = DB.getRowSet(sql);
 				while (results.next())
 				{
 					Savepoint savepoint = trx.setSavepoint(null);
@@ -193,6 +195,9 @@ public class RollUpCosts extends SvrProcess {
 						count++;
 					}
 				}
+			} finally {
+				DB.close(results);
+			}
 		}
 		else //do it for all products 
 		{
@@ -201,7 +206,9 @@ public class RollUpCosts extends SvrProcess {
 			   " JOIN PP_PRODUCT_BOMLINE bl ON b.PP_PRODUCT_BOM_ID = bl.PP_PRODUCT_BOM_ID" +
 			   " WHERE b.AD_Client_ID=" + getAD_Client_ID() +" AND b.IsActive='Y' AND bl.IsActive='Y' AND b.BOMType='A' AND b.BOMUse='A')";
 			Trx trx = Trx.get(get_TrxName(), false);
-	        RowSet results = DB.getRowSet(sql);
+			RowSet results = null;
+			try {
+				results = DB.getRowSet(sql);
 				while (results.next())
 				{
 					Savepoint savepoint = trx.setSavepoint(null);
@@ -219,6 +226,9 @@ public class RollUpCosts extends SvrProcess {
 						count++;
 					}
 				}
+			} finally {
+				DB.close(results);
+			}
 		}
 		
 		return count + " Product Cost Updated.";

org.adempiere.base.process/src/org/compiere/process/TableCreateColumns.java

@@ -115,8 +115,13 @@ public class TableCreateColumns extends SvrProcess
 				if (DB.isPostgreSQL())
 				    tableName = tableName.toLowerCase();
 				// end globalqss 2005-10-24
-				ResultSet rs = md.getColumns(catalog, schema, tableName, null);
+				ResultSet rs = null;
+				try {
+					rs = md.getColumns(catalog, schema, tableName, null);
 					addTableColumn(rs, table);
+				} finally {
+					DB.close(rs);
+				}
 			}
 			StringBuilder msgreturn = new StringBuilder("#").append(m_count);
 			return msgreturn.toString();
@@ -191,8 +196,12 @@ public class TableCreateColumns extends SvrProcess
 				if (DB.isPostgreSQL())
 				    tableName = tableName.toLowerCase();
 				// end globalqss 2005-10-24
+				try {
 					rsC = md.getColumns(catalog, schema, tableName, null);
 					addTableColumn(rsC, table);
+				} finally {
+					DB.close(rsC);
+				}
 			}
 		} catch (Exception e) {
 			throw e;

org.adempiere.base/src/org/compiere/model/MInfoWindow.java

@@ -476,14 +476,15 @@ public class MInfoWindow extends X_AD_InfoWindow implements ImmutablePOSupport
 		
 		// try run sql
 		PreparedStatement pstmt = null;
+		ResultSet rs = null;
 		try {
 			pstmt = DB.prepareStatement(builder.toString(), get_TrxName());
-			pstmt.executeQuery();
+			rs = pstmt.executeQuery();
 		}catch (Exception ex){
 			log.log(Level.WARNING, ex.getMessage());
 			throw new AdempiereException(ex);
 		} finally {
-			DB.close(pstmt);
+			DB.close(rs, pstmt);
 		}
 		
 		// valid state

org.adempiere.base/src/org/compiere/util/DB.java

@@ -1218,9 +1218,14 @@ public final class DB
 	{
 		// Bugfix Gunther Hoppe, 02.09.2005, vpj-cd e-evolution
 		CStatementVO info = new CStatementVO (RowSet.TYPE_SCROLL_INSENSITIVE, RowSet.CONCUR_READ_ONLY, DB.getDatabase().convertStatement(sql));
-		CPreparedStatement stmt = ProxyFactory.newCPreparedStatement(info);
+		CPreparedStatement stmt = null;
-		RowSet retValue = stmt.getRowSet();
+		RowSet retValue = null;
+		try {
+			stmt = ProxyFactory.newCPreparedStatement(info);
+			retValue = stmt.getRowSet();
+		} finally {
 			close(stmt);			
+		}
 		return retValue;
 	}	//	getRowSet
 

org.adempiere.pipo/src/org/adempiere/pipo2/PackRollProcess.java

@@ -20,6 +20,7 @@ package org.adempiere.pipo2;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.sql.PreparedStatement;
@@ -405,8 +406,6 @@ public class PackRollProcess extends SvrProcess {
 				target.write(data);
 				byteCount++;
 			}
-			source.close();
-			target.close();
 
 			System.out.println("Successfully copied " + byteCount + " bytes.");
 		} catch (Exception e) {
@@ -415,6 +414,21 @@ public class PackRollProcess extends SvrProcess {
 			System.out.println(e.toString());
 
 			success = -1;
+		} finally {
+			if (source != null) {
+				try {
+					source.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+			if (target != null) {
+				try {
+					target.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
 		}
 		return success;
 	}

org.adempiere.plugin.utils/src/org/adempiere/plugin/utils/AdempiereActivator.java

@@ -103,9 +103,10 @@ public class AdempiereActivator extends AbstractActivator {
 				localSession.saveEx();
 			}
 			FileOutputStream zipstream = null;
+			InputStream stream = null;
 			try {
 				// copy the resource to a temporary file to process it with 2pack
-				InputStream stream = context.getBundle().getEntry("/META-INF/2Pack.zip").openStream();
+				stream = context.getBundle().getEntry("/META-INF/2Pack.zip").openStream();
 				File zipfile = File.createTempFile(getName(), ".zip");
 				zipstream = new FileOutputStream(zipfile);
 			    byte[] buffer = new byte[1024];
@@ -124,6 +125,11 @@ public class AdempiereActivator extends AbstractActivator {
 						zipstream.close();
 					} catch (Exception e2) {}
 				}
+				if (stream != null) {
+					try {
+						stream.close();
+					} catch (Exception e2) {}
+				}
 				if (localSession != null)
 					localSession.logout();
 			}

org.adempiere.plugin.utils/src/org/adempiere/plugin/utils/Incremental2PackActivator.java

@@ -225,9 +225,10 @@ public class Incremental2PackActivator extends AbstractActivator {
 			String suffix = "_"+path.substring(path.lastIndexOf("2Pack_"));
 			logger.log(Level.WARNING, "Installing " + getName() + " " + path + " ...");
 			FileOutputStream zipstream = null;
+			InputStream stream = null;
 			try {
 				// copy the resource to a temporary file to process it with 2pack
-				InputStream stream = packout.openStream();
+				stream = packout.openStream();
 				File zipfile = File.createTempFile(getName()+"_", suffix);
 				zipstream = new FileOutputStream(zipfile);
 			    byte[] buffer = new byte[1024];
@@ -247,6 +248,11 @@ public class Incremental2PackActivator extends AbstractActivator {
 						zipstream.close();
 					} catch (Exception e2) {}
 				}
+				if (stream != null) {
+					try {
+						stream.close();
+					} catch (Exception e2) {}
+				}
 				if (localSession != null)
 					localSession.logout();
 			}

org.adempiere.plugin.utils/src/org/adempiere/plugin/utils/Version2PackActivator.java

@@ -194,9 +194,10 @@ public class Version2PackActivator extends AbstractActivator{
 			String suffix = "_"+path.substring(path.lastIndexOf("2Pack_"));
 			logger.log(Level.WARNING, "Installing " + getName() + " " + path + " ...");
 			FileOutputStream zipstream = null;
+			InputStream stream = null;
 			try {
 				// copy the resource to a temporary file to process it with 2pack
-				InputStream stream = packout.openStream();
+				stream = packout.openStream();
 				File zipfile = File.createTempFile(getName()+"_", suffix);
 				zipstream = new FileOutputStream(zipfile);
 			    byte[] buffer = new byte[1024];
@@ -216,6 +217,11 @@ public class Version2PackActivator extends AbstractActivator{
 						zipstream.close();
 					} catch (Exception e2) {}
 				}
+				if (stream != null) {
+					try {
+						stream.close();
+					} catch (Exception e2) {}
+				}
 			}
 			logger.log(Level.WARNING, getName() + " " + packout.getPath() + " installed");
 		} 

org.adempiere.server/src/main/server/org/compiere/server/EMailProcessor.java

@@ -114,7 +114,7 @@ public class EMailProcessor
 		//	Cleanup
 		try
 		{
-			if (m_store.isConnected())
+			if (m_store != null && m_store.isConnected())
 				m_store.close();
 		}
 		catch (Exception e)
@@ -181,12 +181,18 @@ public class EMailProcessor
 	protected int processInBox() throws Exception
 	{
 		//	Folder
-		Folder folder;
+		Folder folder = null;
+		Folder inbox = null;
+		Folder requestFolder = null;
+		Folder workflowFolder = null;
+		Folder errorFolder = null;
+		int noProcessed = 0;
+		try {
 			folder = m_store.getDefaultFolder();
 			if (folder == null)
 				throw new IllegalStateException("No default folder");
 			//	Open Inbox
-		Folder inbox = folder.getFolder("INBOX");
+			inbox = folder.getFolder("INBOX");
 			if (!inbox.exists())
 				throw new IllegalStateException("No Inbox");
 			inbox.open(Folder.READ_WRITE);
@@ -195,19 +201,19 @@ public class EMailProcessor
 				+ "; New=" + inbox.getNewMessageCount());
 
 			//	Open Request
-		Folder requestFolder = folder.getFolder("CRequest");
+			requestFolder = folder.getFolder("CRequest");
 			if (!requestFolder.exists() && !requestFolder.create(Folder.HOLDS_MESSAGES))
 				throw new IllegalStateException("Cannot create Request Folder");
 			requestFolder.open(Folder.READ_WRITE);
 
 			//	Open Workflow
-		Folder workflowFolder = folder.getFolder("CWorkflow");
+			workflowFolder = folder.getFolder("CWorkflow");
 			if (!workflowFolder.exists() && !workflowFolder.create(Folder.HOLDS_MESSAGES))
 				throw new IllegalStateException("Cannot create Workflow Folder");
 			workflowFolder.open(Folder.READ_WRITE);
 
 			//	Open Error
-		Folder errorFolder = folder.getFolder("AdempiereError");
+			errorFolder = folder.getFolder("AdempiereError");
 			if (!errorFolder.exists() && !errorFolder.create(Folder.HOLDS_MESSAGES))
 				throw new IllegalStateException("Cannot create Error Folder");
 			errorFolder.open(Folder.READ_WRITE);
@@ -222,7 +228,6 @@ public class EMailProcessor
 			inbox.fetch(messages, fp);
 			**/
 			//
-		int noProcessed = 0;
 			int noError = 0;
 			for (int i = 0; i < messages.length; i++)
 //			for (int i = messages.length-1; i >= 0; i--)	//	newest first
@@ -261,12 +266,47 @@ public class EMailProcessor
 			}
 
 			if (log.isLoggable(Level.INFO)) log.info("processInBox - Total=" + noProcessed + " - Errors=" + noError);
-		//	Fini
+		} finally {
+			if (errorFolder != null && errorFolder.isOpen()) {
+				try {
 					errorFolder.close(false);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+			}
+			
+			if (requestFolder != null && requestFolder.isOpen()) {
+				try {
 					requestFolder.close(false);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}				
+			}
+			
+			if (workflowFolder != null && workflowFolder.isOpen()) {
+				try {
 					workflowFolder.close(false);
-		//
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+			}
+			
+			if (inbox != null && inbox.isOpen()) {
+				try {
 					inbox.close(true);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+			}
+			
+			if (folder != null && folder.isOpen()) {
+				try {
+					folder.close(false);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+			}
+		}
 		return noProcessed;
 	}	//	processInBox
 
@@ -462,12 +502,16 @@ public class EMailProcessor
 		if (content instanceof InputStream)
 		{
 			StringBuilder sb = new StringBuilder();
-			InputStream is = (InputStream)content;
+			InputStream is = null;
+			try {
+				is = (InputStream)content;
 				int c;
 				while ((c = is.read()) != -1)
 					sb.append((char)c);
-			
+			} finally {
+				if (is != null)
 					is.close();
+			}
 			deliveryMessage = sb.toString().trim();
 		}
 		else

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/apps/ProcessDialog.java

@@ -571,6 +571,7 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 		}
 		
 		if (pdfList.size() > 1) {
+			List<PdfReader> pdfReaders = new ArrayList<PdfReader>();
 			try {
 				File outFile = File.createTempFile("PrintShipments", ".pdf");					
 				Document document = null;
@@ -579,6 +580,7 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 				{
 					String fileName = f.getAbsolutePath();
 					PdfReader reader = new PdfReader(fileName);
+					pdfReaders.add(reader);
 					reader.consolidateNamedDestinations();
 					if (document == null)
 					{
@@ -602,6 +604,11 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 			} catch (Exception e) {
 				log.log(Level.SEVERE, e.getLocalizedMessage(), e);
 			} finally {
+				for (PdfReader reader : pdfReaders)
+				{
+					if (reader != null)
+						reader.close();
+				}
 				//do no harm calling this twice
 				hideBusyDialog();
 			}
@@ -656,6 +663,7 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 		}
 		
 		if (pdfList.size() > 1) {
+			List<PdfReader> pdfReaders = new ArrayList<PdfReader>();
 			try {
 				File outFile = File.createTempFile("PrintInvoices", ".pdf");					
 				Document document = null;
@@ -663,6 +671,7 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 				for (File f : pdfList) 
 				{
 					PdfReader reader = new PdfReader(f.getAbsolutePath());
+					pdfReaders.add(reader);
 					if (document == null)
 					{
 						document = new Document(reader.getPageSizeWithRotation(1));
@@ -685,6 +694,11 @@ public class ProcessDialog extends AbstractProcessDialog implements EventListene
 			} catch (Exception e) {
 				log.log(Level.SEVERE, e.getLocalizedMessage(), e);
 			} finally {
+				for (PdfReader reader : pdfReaders)
+				{
+					if (reader != null)
+						reader.close();
+				}
 				//do no harm calling this twice
 				hideBusyDialog();
 			}

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/apps/form/WArchiveViewer.java

@@ -756,9 +756,10 @@ public class WArchiveViewer extends Archive implements IFormController, EventLis
 		descriptionField.setText(ar.getDescription());
 		helpField.setText(ar.getHelp());
 		
+		InputStream in = null;
 		try
 		{
-			InputStream in = ar.getInputStream();
+			in = ar.getInputStream();
 			//pdfViewer.setScale(reportField.isSelected() ? 50 : 75);
 			if (in != null)
 				reportViewer(ar.getName(), ar.getBinaryData());//pdfViewer.loadPDF(in);
@@ -770,6 +771,17 @@ public class WArchiveViewer extends Archive implements IFormController, EventLis
 			log.log(Level.SEVERE, "pdf", e);
 			iframe.getChildren().clear();//pdfViewer.clearDocument();
 		}
+		finally
+		{
+			if (in != null)
+			{
+				try {
+					in.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+		}
 	}	//	updateVDisplay
 
 	/**

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/editor/WFilenameEditor.java

@@ -170,13 +170,19 @@ public class WFilenameEditor extends WEditor
 			if (file.inMemory()) {
 				bytes = file.getByteData();
 			} else {
-				InputStream is = file.getStreamData();
+				InputStream is = null;
+				try {
+					is = file.getStreamData();
 					ByteArrayOutputStream baos = new ByteArrayOutputStream();
 					byte[] buf = new byte[ 1000 ];
 					int byteread = 0;
 					while (( byteread=is.read(buf) )!=-1)
 						baos.write(buf,0,byteread);
 					bytes = baos.toByteArray();
+				} finally {
+					if (is != null)
+						is.close();
+				}
 			}
 
 			fos.write(bytes);

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/panel/WAttachment.java

@@ -763,15 +763,20 @@ public class WAttachment extends Window implements EventListener<Event>
 			if (media.inMemory())
 				bytes = media.isBinary() ? media.getByteData() : media.getStringData().getBytes(getCharset(media.getContentType()));
 			else {
-			 InputStream is = media.getStreamData();
+				InputStream is = null;
+				try {
+					is = media.getStreamData();
 					ByteArrayOutputStream baos = new ByteArrayOutputStream();
 					byte[] buf = new byte[1000];
 					int byteread = 0;
 
 					while ((byteread = is.read(buf)) != -1)
 						baos.write(buf, 0, byteread);
-			
 					bytes = baos.toByteArray();
+				} finally {
+					if (is != null)
+						is.close();
+				}
 			}
 		} catch (IOException e) {
 			log.log(Level.SEVERE, e.getLocalizedMessage(), e);

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/report/HTMLExtension.java

@@ -165,9 +165,10 @@ public class HTMLExtension implements IHTMLExtension {
 		if (urlFile != null) {
 			FileOutputStream cssStream = null;
 			File cssFile = null;
+			InputStream stream = null;
 			try {
 				// copy the resource to a temporary file to process it with 2pack
-				InputStream stream = urlFile.openStream();
+				stream = urlFile.openStream();
 				cssFile = File.createTempFile("report", ".css");
 				cssStream = new FileOutputStream(cssFile);
 			    byte[] buffer = new byte[1024];
@@ -183,6 +184,13 @@ public class HTMLExtension implements IHTMLExtension {
 						cssStream.close();
 					} catch (Exception e2) {}
 				}
+				if (stream != null) {
+					try {
+						stream.close();
+					} catch (IOException e) {
+						e.printStackTrace();
+					}
+				}
 			}
 			return cssFile.getAbsolutePath();
 		} else {

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/WEMailDialog.java

@@ -650,8 +650,9 @@ public class WEMailDialog extends Window implements EventListener<Event>, ValueC
 			if (media.inMemory()) {
 				bytes = media.isBinary() ? media.getByteData() : media.getStringData().getBytes(getCharset(media.getContentType()));
 			} else {
-				
+				InputStream is = null;
-				InputStream is = media.getStreamData();
+				try {
+					is = media.getStreamData();
 					ByteArrayOutputStream baos = new ByteArrayOutputStream();
 					byte[] buf = new byte[ 1000 ];
 					int byteread = 0;
@@ -660,6 +661,10 @@ public class WEMailDialog extends Window implements EventListener<Event>, ValueC
 						baos.write(buf,0,byteread);
 					
 					bytes = baos.toByteArray();
+				} finally {
+					if (is != null)
+						is.close();
+				}
 			}
 		} catch (IOException e) {
 			log.log(Level.SEVERE, e.getLocalizedMessage(), e);

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/ZkJRViewer.java

@@ -432,7 +432,9 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					prefix += "_".repeat(3-prefix.length());
 				if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Path="+path + " Prefix="+prefix);
 				File file = File.createTempFile(prefix, ".xls", new File(path));
-		        FileOutputStream fos = new FileOutputStream(file);
+				FileOutputStream fos = null;
+				try {
+			        fos = new FileOutputStream(file);
 		
 					// coding For Excel:
 					JRXlsExporter exporterXLS = new JRXlsExporter();
@@ -447,6 +449,10 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					exporterXLS.setExporterOutput(new SimpleOutputStreamExporterOutput(fos));
 					exporterXLS.setConfiguration(xlsConfig);
 					exporterXLS.exportReport();
+				} finally {
+					if (fos != null)
+						fos.close();
+				}
 				return new AMedia(m_title+"."+EXCEL_FILE_EXT, EXCEL_FILE_EXT, EXCEL_MIME_TYPE, file, true);
 			} catch (Exception e) {
 				if (e instanceof RuntimeException)
@@ -468,7 +474,9 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					prefix += "_".repeat(3-prefix.length());
 				if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Path="+path + " Prefix="+prefix);
 				File file = File.createTempFile(prefix, "."+EXCEL_XML_FILE_EXT, new File(path));
-		        FileOutputStream fos = new FileOutputStream(file);
+				FileOutputStream fos = null;
+				try {
+			        fos = new FileOutputStream(file);
 	
 					// coding For Excel:
 					JRXlsxExporter exporterXLSX = new JRXlsxExporter();
@@ -483,6 +491,10 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					exporterXLSX.setExporterOutput(new SimpleOutputStreamExporterOutput(fos));
 					exporterXLSX.setConfiguration(xlsxConfig);
 					exporterXLSX.exportReport();
+				} finally {
+					if (fos != null)
+						fos.close();
+				}
 				return new AMedia(m_title+"."+EXCEL_XML_FILE_EXT, EXCEL_XML_FILE_EXT, EXCEL_XML_MIME_TYPE, file, true);
 			} catch (Exception e) {
 				if (e instanceof RuntimeException)
@@ -504,7 +516,9 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					prefix += "_".repeat(3-prefix.length());
 				if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Path="+path + " Prefix="+prefix);
 				File file = File.createTempFile(prefix, "."+CSV_FILE_EXT, new File(path));
-				FileOutputStream fos = new FileOutputStream(file);
+				FileOutputStream fos = null;
+				try {
+			        fos = new FileOutputStream(file);
 					JRCsvExporter exporter= new JRCsvExporter();
 					if (!isList){
 						jasperPrintList = new ArrayList<>();
@@ -513,7 +527,10 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					exporter.setExporterInput(SimpleExporterInput.getInstance(jasperPrintList));
 					exporter.setExporterOutput(new SimpleWriterExporterOutput(fos));
 					exporter.exportReport();
-	
+				} finally {
+					if (fos != null)
+						fos.close();
+				}	
 				return new AMedia(m_title+"."+CSV_FILE_EXT, CSV_FILE_EXT, CSV_MIME_TYPE, file, false);
 			} catch (Exception e) {
 				if (e instanceof RuntimeException)
@@ -535,7 +552,9 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					prefix += "_".repeat(3-prefix.length());
 				if (log.isLoggable(Level.FINE)) log.log(Level.FINE, "Path="+path + " Prefix="+prefix);
 				File file = File.createTempFile(prefix, "."+SSV_FILE_EXT, new File(path));
-				FileOutputStream fos = new FileOutputStream(file);
+				FileOutputStream fos = null;
+				try {
+					fos = new FileOutputStream(file);
 					JRCsvExporter exporter= new JRCsvExporter();
 					SimpleCsvExporterConfiguration csvConfig = new SimpleCsvExporterConfiguration();
 					csvConfig.setFieldDelimiter(";");
@@ -547,7 +566,10 @@ public class ZkJRViewer extends Window implements EventListener<Event>, ITabOnCl
 					exporter.setExporterOutput(new SimpleWriterExporterOutput(fos));
 					exporter.setConfiguration(csvConfig);
 					exporter.exportReport();
-	
+				} finally {
+					if (fos != null)
+						fos.close();
+				}
 				return new AMedia(m_title+"."+SSV_FILE_EXT, SSV_FILE_EXT, CSV_MIME_TYPE, file, false);
 			} catch (Exception e) {
 				if (e instanceof RuntimeException)